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Owner’s Manual Cat. No. 20-432

PRO-20521000-Channel Dual TrunkingTrunkTracker Home Scanner

Please read before using this equipment.

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INTRODUCTION

Your new RadioShack PRO-20521000-Channel Dual Trunking Trunk-Tracker Home Scanner is one of anew generation of scanners designedto track Motorola Type I, Type II(such as Smartnet and PrivacyPlus), GE/Ericsson EDACS, and hy-brid analog trunking systems, whichare extensively used in many 800MHz, 900 MHz and UHF communica-tion systems.

Trunking communications systems leta large group of 2-way radio users (oreven different groups of 2-way radiousers) efficiently use a group of fre-quencies. Instead of selecting a spe-cific frequency for a transmission, the2-way radio user simply selects a talkgroup. The trunking system automati-cally transmits the call on the firstavailable frequency, and also sends acode that uniquely identifies that 2-way radio user’s transmission on a dif-ferent frequency called a data chan-nel.

Since the trunking system might sendindividual 2-way radio user’s calls andresponse transmissions on differentfrequencies, it is difficult to listen totrunked communications using a regu-lar scanner. The PRO-2052 monitorsthe data channel frequency sent witha 2-way radio user’s transmission andinstantly switches to an active fre-quency, so you can hear the call andresponse for that 2-way radio userand easily “follow” the conversation.

The scanner also lets you scan con-ventional transmissions, and is pre-programmed with service-searchbanks for convenience. By pressing asingle button, you can quickly searchthose frequencies most commonlyused by public service and otheragencies without tedious and compli-cated programming.

This scanner gives you direct accessto over 51,000 exciting frequencies,including those used by police and firedepartments, ambulance services,and amateur radio services, and youcan change your selection at any time.

FEATURES

Your scanner also has these specialfeatures:

Flexible Operation — you can trackboth Motorola and GE/Ericsson trunk-ing systems (used by most trunkingcommunications systems today), let-ting you hear more calls than manystandard trunking scanners.

Frequency Coverage to 1.3 GHz —provides a wide range of frequenciesyou can listen to.

Twenty Channel-Storage Banks —let you store 50 channels in each bank(1000 total channels), letting yougroup channels so you can more easi-ly identify calls.

© 1999 Tandy Corporation.All Rights Reserved.

RadioShack is a registered trademark used by Tandy Corporation.HyperSearch and HyperScan are trademarks used by Tandy Corporation.

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NWR-SAME/Weather Alert — youcan set the scanner to sound an alertwhen it receives NOAA’s SpecificArea Message Encoding (SAME) cod-ed weather emergency signal, provid-ing more complete information aboutweather conditions in your immediatearea and letting you avoid hearingalerts for geographical areas that donot interest you.

Remote PC Function — lets you con-trol the PRO-2052 from your personalcomputer.

Five Scan Lists — let you store up to50 IDs in each tracking bank (up to atotal of 1000).

Triple-Conversion Circuitry — virtu-ally eliminates any interference fromIF (intermediate frequency) images,so you hear only the selected frequen-cy.

Scan Delay — delays scanning forabout 2 seconds before moving to an-other channel in conventional mode,so you can hear more replies that aremade on the same channel. In trunkscanning mode, it delays for about 5seconds before moving to another ID.

Lock-Out Function — lets you setyour scanner to skip over specifiedchannels or frequencies when scan-ning or searching, and skip over IDswhen tracking trunked systems.

Priority Channels — lets you pro-gram one channel in each bank (10 in

all). As the scanner scans a bank, itchecks the bank’s priority channel ev-ery 2 seconds so you don't miss trans-missions on that channel.

Five Service-Search Banks — letyou search preset frequencies in sep-arate public service, police, fire/emer-gency, aircraft, and weather banks, tomake it easy to locate specific types ofcalls.

HyperSearch and HyperScan —let you set the scanner to search at upto 300 steps per second (in frequencybands with 5 kHz steps) and scan atup to 50 channels per second, to helpyou quickly find interesting broad-casts. (The normal search speed is100 steps per second).

Data Signal Skip — lets you set thescanner to skip non-modulated or datasignals during scanning and searches.This lets the scanner avoid non-voicesignals, making a scan or search fast-er.

Manual Access — you can directlyaccess any stored channel by enteringthat channel’s number.

Liquid-Crystal Display — makes iteasy to view and change program-ming information.

Display Backlight — makes thescanner easy to read in low-light situa-tions.

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Supplied Telescoping Antenna —provides good reception of strong lo-cal signals.

External Antenna Terminal — letsyou connect an external antenna witha BNC connector to the scanner forimproved reception of distant/weakersignals.

Memory Backup — keeps the chan-nel frequencies stored in memory inthe event AC power goes out.

Key Confirmation Tones — thescanner sounds a tone when you per-form an operation correctly, and an er-ror tone if you make an error.

Duplicate Channel Alert — warnsyou when the frequency you are stor-ing already exists in memory.

Disconnect Tone Detect — the scan-ner automatically tunes to the trunkingdata channel when it receives a dis-connect transmission. You can turnthis feature off to continuously monitora channel with a weak transmissionduring disconnected conversations.

Your PRO-2052 scanner can receivethese bands:

Note: See “Specifications” on Page 68for more information about the scan-ner’s frequency steps.

Frequency Range (MHz)

Types of Transmissions

29–29.7 10-Meter Ham Band

29.7–50 VHF Lo

50–54 6-Meter Ham Band

108–136.975 Aircraft

137–144 Military Land Mobile


148–174 VHF Hi

179.75–215.75 VHF TV


225–400 UHF Aircraft

400–420 Federal Government

420–450 70-cm Ham Band

450–470 UHF Standard Band

470–512 UHF “T” Band

806–824851–869896–956

Public Service “800” exceptCellular Band

1240–1300 25-cm Ham Band

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FCC NOTICE

Your scanner might cause radio or TVinterference even when it is operatingproperly. To determine whether yourscanner is causing the interference,turn off your scanner. If the interfer-ence goes away, your scanner iscausing it. Try the following methodsto eliminate the interference:

• Move your scanner away from thereceiver.

• Connect your scanner to an outletthat is on a different electrical cir-cuit from the receiver.

• Contact your local RadioShackstore for help.

Note: Mobile use of this scanner isunlawful or requires a permit in someareas. Check the laws in your area.

SCANNING LEGALLY

Your scanner covers frequenciesused by many different groups includ-ing police and fire departments, ambu-lance services, government agencies,private companies, amateur radio ser-vices, military operations, pager ser-vices, and wireline (telephone andtelegraph) service providers. It is legalto listen to almost every transmissionyour scanner can receive. However,there are some transmissions youshould never intentionally listen to.These include:

• telephone conversations (cellular,cordless, or other private meansof telephone signal transmission)

• pager transmissions

• any scrambled or encrypted trans-missions

According to the Electronic Communi-cations Privacy Act (ECPA), you aresubject to fines and possible imprison-ment for intentionally listening to, us-ing, or divulging the contents of such atransmission unless you have the con-sent of a party to the communication(unless such activity is otherwise ille-gal).

This scanner is designed to preventreception of illegal transmissions, incompliance with the law which re-quires that scanners be manufacturedin such a way as to not be easily mod-ifiable to pick up those transmissions.Do not open your scanner's case tomake any modifications that could al-low it to pick up transmissions that it isnot legal to listen to. Doing so couldsubject you to legal penalties.

We encourage responsible, legalscanner use.

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CONTENTS

Preparation ........................................................................................................... 8Connecting an Antenna ................................................................................... 8Connecting Power ........................................................................................... 9Connecting an Extension Speaker ................................................................ 10Connecting an Earphone/Headphones ......................................................... 11

Understanding Your Scanner ............................................................................ 12A Look at the Front Panel .............................................................................. 12A Look at the Display ..................................................................................... 14Understanding Banks .................................................................................... 17Understanding Trunking ................................................................................. 17

Operation ............................................................................................................ 18Turning On the Scanner and Setting Squelch ............................................... 18Storing Known Frequencies into Channels .................................................... 18Searching Service Banks .............................................................................. 19Limit Search ................................................................................................... 20Scanning the Stored Channels ...................................................................... 21Manually Selecting a Channel ....................................................................... 21Deleting a Frequency from a Channel ........................................................... 21Priority ........................................................................................................... 21

Special Features ................................................................................................ 23Delay ............................................................................................................. 23Turning Channel-Storage Banks On and Off ................................................. 23Locking Out Channels and Frequencies ........................................................ 23Turning the Key Tone On and Off ................................................................... 24Changing Search Speeds .............................................................................. 25Skipping Data Signals ................................................................................... 25Using NWR-SAME and Weather Alert .......................................................... 25Testing Weather Alert Reception ................................................................... 28

Trunk Scanning .................................................................................................. 30Types of Trunking Systems ............................................................................ 30Setting the Scanner to the Trunk Scanning Mode ......................................... 31Setting Squelch for the Trunk Scanning Mode ............................................... 31Programming Trunked Frequencies ............................................................... 32Scanning a Trunked Bank .............................................................................. 33Monitoring IDs ............................................................................................... 37Channel Activity Indicators ............................................................................ 37Scan Lists ...................................................................................................... 37Scanning the Scan Lists ................................................................................ 39Scanning Type I and Hybrid Trunked Systems .............................................. 40

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PC Remote Function ......................................................................................... 46Connecting the Scanner to a Computer ........................................................ 46Setting the Remote Communication Format ................................................. 46Turning the Remote Function On and Off ..................................................... 47PC to Scanner Commands ........................................................................... 47PC to Scanner Functions List ....................................................................... 48Scanner to PC Responses ............................................................................ 52Scanner Mode Codes ................................................................................... 53

A General Guide to Scanning ........................................................................... 55Guide to Frequencies .................................................................................... 55Guide to the Action Bands ............................................................................ 56Band Allocation ............................................................................................. 57Frequency Conversion .................................................................................. 63

Troubleshooting ................................................................................................. 64Resetting the Scanner .................................................................................. 66

Care and Maintenance ...................................................................................... 67

Specifications .................................................................................................... 68

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PREPARATION

This scanner is designed primarily foruse in the home as a base station.You can place it on a desk, shelf, ortable.

Your scanner’s front feet fold up ordown. Adjust them to give you thebest view of the display.

Your scanner’s display is protectedduring shipment by a piece of film.Peel off this film before you use thescanner.

CONNECTING AN ANTENNA

Connecting the Supplied Antenna

You must install an antenna beforeyou can operate the scanner.

The supplied telescoping antennahelps your scanner receive strong lo-cal signals. To install the antenna,thread it clockwise into the hole on thescanner’s top.

The scanner’s sensitivity depends onthe antenna’s length and various envi-ronmental conditions. For the best re-ception of the transmissions you wantto hear, adjust the antenna’s length.

Connecting an Outdoor Antenna

Instead of the supplied antenna, youcan connect an outdoor base-stationor mobile antenna (not supplied) toyour scanner using a BNC connector.Your local RadioShack store sells avariety of antennas. Choose the onethat best meets your needs.

When deciding on a mobile or base-station antenna and its location, con-sider these points:

Frequency Antenna Length

29–54 MHz Extend fully

108–400 MHz Collapse onesegment

406–1300 MHz Collapse bothsegments

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• The antenna should be as high aspossible on the vehicle or build-ing.

• The antenna and its cable shouldbe as far as possible from sourcesof electrical noise (appliances,other radios, etc.).

• The antenna should be vertical forthe best performance.

To connect an optional base-station ormobile antenna, first remove the sup-plied antenna from the scanner. Al-ways use 50-ohm coaxial cable, suchas RG-58 or RG-8, to connect thebase-station or mobile antenna. Forlengths over 50 feet, use RG-8 low-loss dielectric coaxial cable. If the an-tenna cable’s connector does not fit inthe ANT. jack, you might also need aMotorola-to-BNC antenna plug adapt-er, such as RadioShack Cat. No. 278-117. Your local RadioShack store car-ries a wide variety of coaxial antennacable and connectors.

Once you choose an antenna, followthe mounting instructions suppliedwith the antenna. Then route the an-tenna’s cable to the scanner and con-nect the cable to the ANT. jack on theback of the scanner.

Cautions:

• Do not run the cable over sharpedges or moving parts that mightdamage it.

• Do not run the cable next to powercables or other antenna cables.

Warning: Use extreme cautionwhen you install or remove an out-door antenna. If the antenna starts tofall, let it go! It could contact over-head power lines. If the antennatouches a power line, contact withthe antenna, mast, cable, or guywires can cause electrocution anddeath. Call the power company to re-move the antenna. DO NOT attemptto do so yourself.

CONNECTING POWER

Using AC Power

The scanner’s supplied AC adapterlets you power the scanner from astandard AC outlet. To connect powerto the scanner, insert the AC adapter’sbarrel plug into the DC 12V jack on theback of the scanner, then plug the ACadapter into a standard AC outlet.

A N T

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Cautions:

You must use a Class 2power source that sup-plies 12V DC and deliv-

ers at least 500 mA. Its center tipmust be set to positive and itsplug must fit the scanner's DC 12Vjack. The supplied adapter meetsthese specifications. Using anadapter that does not meet thesespecifications could damage thescanner or the adapter.

• Always connect the AC adapter tothe scanner before you connect itto AC power. When you finish, dis-connect the adapter from ACpower before you disconnect itfrom the scanner.

Warning: Do not use the AC adapt-er’s polarized plug with an extensioncord receptacle unless the blades canbe fully inserted to prevent blade ex-posure.

Using Your Vehicle’s Battery Power

If your AC power fails (during anemergency, for example), you canpower your scanner from your vehi-cle’s cigarette lighter socket with anoptional DC cigarette lighter power ca-ble, (not supplied).

To connect an optional DC cigarettelighter power cable, insert its barrelplug into the DC 12V jack on the backof the scanner, then plug the powercable into your vehicle’s cigarettelighter socket.

Cautions:

You must use a powersource that supplies 12VDC and delivers at least

500 mA. Its center tip must be setto positive and its plug must fit thescanner's DC 12V jack. The sup-plied adapter meets these specifi-cations. Using an adapter thatdoes not meet these specifica-tions could damage the scanneror the adapter.

• Always connect the adapter to thescanner before you connect it tothe power source. When you fin-ish, disconnect the DC adapterfrom the power source before youdisconnect it from the scanner.

Note: If you use a cigarette lighterpower cable and your vehicle’s engineis running, you might hear electricalnoise from the engine while scanning.This is normal.

CONNECTING AN EXTENSION SPEAKER

In a noisy area, an amplified extensionspeaker (available at your local Ra-dioShack store) positioned in the rightplace, might provide more comfortablelistening.

! D C 1 2 V

A N T

!

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Plug the speaker cable’s 1/8-inch (3.5-

mm) plug into your scanner’s jack.

Note: Connecting an external speakerdisconnects the scanner’s internalspeaker.

CONNECTING AN EARPHONE/HEADPHONES

For private listening, you can connectan earphone or headphones with a

1/8-

inch (3.5-mm) plug to the jack onthe front of the scanner. (Your localRadioShack store carries a wide se-lection of earphones and head-phones). This automatically dis-connects the internal speaker.

Listening Safely

To protect your hearing, follow theseguidelines when you use an earphoneor headphones.

• Do not listen at extremely highvolume levels. Extended high-volume listening can lead to per-manent hearing loss.

• Set VOLUME to the lowest settingbefore you begin listening. Afteryou begin listening, adjust VOL-UME to a comfortable level.

• Once you set VOLUME, do notincrease it. Over time, your earsadapt to the volume level, so avolume level that does not causediscomfort might still damage yourhearing.

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UNDERSTANDING YOUR SCANNER

Once you understand a few simple terms we use in this manual and familiarizeyourself with your scanner’s features, you can put the scanner to work for you. Yousimply determine the type of communications you want to receive, then set thescanner to scan them.

A frequency is the tuning location of a station (expressed in kHz or MHz). To findactive frequencies, you can use the search function.

You can also search the service-search banks , which are preset groups of fre-quencies categorized by type of service.

When you find a frequency, you can store it into a programmable memory locationcalled a channel , which is grouped with your other channels in a channel-storagebank . You can then scan the channel-storage banks to see if there is activity onthe frequencies stored there. Each time the scanner finds an active frequency, itstays on that channel until the transmission ends.

A LOOK AT THE FRONT PANEL

Your scanner’s keys might seem confusing at first, but this information should helpyou understand each key’s function.

Note: Some of the scanner’s keys perform more than one function and are markedwith more than one label. The steps in this Owner’s Manual show only the label onthe key appropriate to the action being performed.

VOLUME Turns the scanner on or off and adjusts the volume.

SQUELCH Adjusts the scanner’s squelch.

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SCAN In conventional scanning, scans through stored chan-nels; in trunking mode, scans through the scan listsand turns on/off the S-bit feature.

MANUAL Stops scanning and lets you directly enter a channelnumber or frequency.

TRUNK Selects trunk scanning or conventional mode.

SVC (service) Selects a service bank; turns on/off the disconnecttone detect feature.

PRIORITY/SPEED Sets and turns on and off the priority feature; turns theHyperSearch mode on and off; in Trunking mode, pro-grams the priority ID.

Number Keys Each key has single-digit (0 to 9) and double-digit (11to 20) labels. Use single digits to enter a channel, fre-quency, ID number, or bank numbers 1 to 10. Usedouble-digits to enter bank numbers 11 to 20.

CLEAR/• Clears an entry; enters a decimal point; in trunk scan-ning mode, sets the range between fleet and sub-fleetfor Motorola Type 1 IDs and sets the range betweenagency and fleet for Ericsson EDACS IDs.

E (enter) Enters frequencies into channels; enters IDs into scanlists.

LIMIT/▼ Sets the frequency range; sets the search directionand holds a frequency search.

DELAY Programs a 2-second delay for the selected channel,a limit search, or each service scan. Also programs a5-second delay in trunk scanning mode.

SEARCH Searches a specified frequency range to find frequen-cies; searches for active IDs in the trunk scanningmode.

L/O/SKIP (lock out/skip) Lets you lock out selected channels or frequencies;lets you lock out a selected ID in the trunk scanningmode.

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REMOTE/HOLD/▲ Turns the remote function on or off; holds on the cur-rent ID in trunk scanning mode; sets the search direc-tion and holds the frequency search.

DATA/ALERT Turns the data signal skip feature and the SAME alertfeatures on or off, or checks the current trunking bankin trunk scanning mode.

SHIFT Press with number keys to select banks 11 through20.

A LOOK AT THE DISPLAY

The display has indicators that show the scanner’s current operating status. Thisquick look at the display will help you understand how your scanner operates.

LIST Appears with a number (1–5) to indicate the list num-ber.

BANK Appears with numbers (1–20) to indicate the scanbank.

PUB Indicates (along with the activity indicator) that thescanner is searching the public safety service bank.

POLICE Indicates (along with the activity indicator) that thescanner is searching the police service bank.

FIRE/EMG Indicates (along with the activity indicator) that thescanner is searching the fire/emergency service bank.

AIR Indicates (along with the activity indicator) that thescanner is searching the air service bank.

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WX Indicates (along with the activity indicator) that thescanner is searching the weather service bank.

TRUNK Appears when the scanner is in trunk scanningmode. 1–20 appears as the bank number or listnumber.

Shows which service bank is currently active. Shows(activity indicator) which control/voice channels are currently ac-

tive.

SFT Appears when the scanner is in the shift mode;flashes when the remote function is on.

M Appears when the trunking system type is Motor-ola.

E Appears when the trunking system type isEDACS.

ALERT Appears when the weather alert is on; flasheswhen the scanner receives an ALERT signal orSAME alert.

Appears when a priority channel is selected or thepriority ID is set.

SCAN Appears when the scanner scans channels.

MANUAL Appears when you set the scanner to its manualmode.

PRI Appears when the priority feature is turned on.

HOLD Appears when the scanner is holding during asearch.

DELAY Appears when the delay feature is turned on.

DATA Appears when the data skip function is active; ap-pears in the trunk scanning mode when the dis-connect tone detect function is off.

P

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L/O (lockout) Appears when you manually select a channel, fre-quency, or ID that is locked out.

▼SEARCH▲ Lights steadily during a limit search, service search,and ID search, and blinks while HyperSearch is activeand when you monitor IDs. The arrow indicates thesearch direction.

Error Appears if you make an entry error.

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UNDERSTANDING BANKS

Channel Storage Banks

To make it easier to identify and selectthe channels you want to listen to,channels are divided into 20 banks of50 channels each. Use each channel-storage bank to group frequencies,such as those used by the police de-partment, fire department, ambulanceservices, or aircraft (see “Guide to theAction Bands” on Page 56).

For example, the police departmentmight use four frequencies, one foreach side of town. You could programthe police frequencies starting withChannel 1 (the first channel in bank 1)and program the fire department fre-quencies starting with Channel 51 (thefirst channel in bank 2).

Service Banks

The scanner is preprogrammed withthe frequencies allocated by publicsafety, police, fire/emergency, aircraft,and weather services. This is handyfor quickly finding active frequenciesinstead of searching through an entireband (see “Searching Service Banks”on Page 19).

UNDERSTANDING TRUNKING

In the past, groups that broadcast fre-quently, such as police departments,were restricted to transmitting on justa few frequencies. This resulted inheavy traffic and often required 2-wayradio users to wait for a specific fre-quency to clear before transmitting.

Trunked systems allow more groupsof 2-way radio users to use fewer fre-quencies. Instead of selecting a spe-cific frequency to transmit on, atrunked system chooses one of sever-al frequencies when the 2-way radiouser presses PTT (push to talk). Thesystem automatically transmits thecall on that frequency, and also sendsa code that identifies that 2-way radiouser’s transmission on a data channel.

You can set this scanner to monitorthe data channel frequency, so youcan hear both the call and responsetransmissions for that 2-way radiouser and therefore follow the conver-sation. (You cannot listen to the datachannel itself in trunking mode.)

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OPERATION

TURNING ON THE SCANNER AND SETTING SQUELCH

1. Turn SQUELCH and VOLUME fullycounterclockwise.

2. Turn VOLUME back clockwise untilyou hear a hissing sound.

3. Turn SQUELCH clockwise, thenleave it set to a point just after thehissing sound stops.

Notes:

• If the scanner does not scan, turnSQUELCH further clockwise.

• If the scanner picks up unwanted,partial, or very weak transmis-sions, turn SQUELCH clockwise todecrease the scanner’s sensitivityto these signals. If you want to lis-ten to a weak or distant station,turn SQUELCH counterclockwise.

• If SQUELCH is adjusted so youalways hear a hissing sound, thescanner will not scan properly.

STORING KNOWN FREQUENCIES INTO CHANNELS

Good references for active frequen-cies are the RadioShack “Police CallGuide including Fire and EmergencyServices,” “Official Aeronautical Fre-quency Directory,” and “Maritime Fre-quency Directory.” We update these

directories every year, so be sure toget a current copy.

Note: To store trunking system fre-quencies, see “Programming TrunkedFrequencies” on Page 32.

Follow these steps to store frequen-cies into channels.

1. Press MANUAL , enter the chan-nel number (1–1000) where youwant to store a frequency, thenpress MANUAL again. The chan-nel number appears.

2. Use the number keys and • toenter the frequency (including thedecimal point) you want to store.

3. Press E to store the frequency intothe channel.

Notes:

• If you made a mistake in Step2, Error appears and thescanner beeps when you pressE. Simply start again from Step2.

• Your scanner automaticallyrounds the entered frequency tothe nearest valid frequency. Forexample, if you enter a fre-

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quency of 151.473, your scan-ner accepts it as 151.475.

• If you entered a frequency thatis already stored in anotherchannel, the scanner beepsthree times and displays thelowest channel number wherethe frequency is already stored.If you want to store the fre-quency anyway, press E again.

• Press DELAY if you want thescanner to pause 2 seconds onthis channel after a transmis-sion ends before it proceeds tothe next channel (see “Delay”on Page 23). The scanner alsostores this setting in the chan-nel.

4. To program the next channel insequence, press MANUAL andrepeat Steps 2 and 3.

SEARCHING SERVICE BANKS

You can search for public service, po-lice, fire/emergency, aircraft, andweather transmissions even if you donot know the specific frequencies thatare used in your area. You can alsostore any of the frequencies you findinto channels.

Your scanner has the following pre-programmed service banks.

• PUB — contains 140 public ser-vice frequencies

• POLICE — contains 2,392 policefrequencies

• FIRE/EMG — contains 197 fireand emergency service frequen-cies

• AIR — contains 2,319 aircraft andair service frequencies

• WX — contains 7 weather fre-quencies

To select a service bank, press SVC. (activity indicator) appears above

the service bank’s name ( PUB, PO-LICE , FIRE/EMG, AIR , and WX) ,and one of the preset public servicefrequencies appear. After a 2-seconddelay, scanning begins in the selectedbank.

To select another service bank, re-peatedly press SVC until appearsabove the name of the bank you wantto use.

Notes:

• To skip data signals (such asmodem signals), press DATA . See“Skipping Data Signals” onPage 25.

• Because frequencies are notalways assigned to the same ser-vices everywhere, you might heartransmissions from one service inanother service bank.

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Press SEARCH to start searching im-mediately or to continue searching ifyou want to skip a frequency.

During service-search, you can pressHOLD to pause the searching. HOLDappears. Press ▲ or ▼ to move up ordown one step, or press SEARCH toresume searching.

Follow these steps to store servicebank frequencies into channels.

1. Press MANUAL .

2. Use the number keys to enter thechannel number (1–1000) whereyou want to store the frequency,then press MANUAL .

3. Press SVC then SEARCH to selecta service bank and begin search-ing.

4. When the scanner stops on atransmission, press HOLD. Thefrequency appears.

5. Press E to store the frequency intothe channel.

LIMIT SEARCH

If you do not know a frequency tostore, you can search for transmis-sions within a range of frequenciesyou select, called the limit searchrange. Then you can store any inter-esting frequencies you find into chan-nels.

1. Press MANUAL , enter the chan-nel number where you want to

store a frequency, then pressMANUAL again. The channel num-ber appears.

2. Use the number keys and • toenter the frequency that is thelower limit of the range you wantto search.

3. Press LIMIT.

4. Use the number keys and • toenter the frequency that is theupper limit of the range you wantto search.

5. Press LIMIT then SEARCH. Thescanner begins to search from thelower limit to the upper limit.

6. When the scanner stops on atransmission, quickly press either:

• E to store the displayed fre-quency into the channel. Thescanner stores the frequency.

• ▲ or ▼ to stop searching soyou can listen to the transmis-sion. HOLD appears.

To release hold and continuesearching, press SEARCH.

Notes:

• To step through the frequencieswhile HOLD appears, press ▲ or▼.

• Press ▲ then SEARCH to searchfrom lowest to highest frequency,or press ▼ then SEARCH tosearch from highest to lowest fre-quency.

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• If you tune to a search skip fre-quency, L/O appears. See “Lock-ing Out Channels and Fre-quencies” on Page 23.

• To skip data signals (such asmodem signals), press DATA . See“Skipping Data Signals” onPage 25.

SCANNING THE STORED CHANNELS

To begin scanning channels, pressSCAN. The scanner scans through allnon-locked channels in all banks thatare turned on, then stops on the firsttransmission it finds. When the trans-mission ends, the scanner resumesscanning.

Notes:

• Channels with no frequencies areautomatically locked out duringscanning.

• To scan in the trunking mode, see“Scanning a Trunked Bank” onPage 33.

MANUALLY SELECTING A CHANNEL

You can continuously monitor a singlechannel without scanning. This is use-ful if you hear an emergency broad-cast on a channel and do not want tomiss any details — even though there

might be periods of silence — or if youwant to monitor a specific channel.

Follow these steps to manually selecta channel.

1. Press MANUAL .

2. Enter the channel number.

3. Press MANUAL again.

Or, if your scanner is scanning andstops at the desired channel, pressMANUAL one time. (Pressing MANUALadditional times causes your scannerto step through the channels.)

To resume scanning, press SCAN.

DELETING A FREQUENCY FROM A CHANNEL

1. Press MANUAL .

2. Use the number keys to enter thechannel number containing thefrequency you want to delete.Then press MANUAL again.

3. Press 0 then E. The frequency isdeleted.

PRIORITY

The priority feature lets you scanthrough channels and still not miss im-portant or interesting calls on specificchannels. You can program onestored channel in each bank as a pri-

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ority channel (for up to a total of 10stored channels). As the scannerscans the bank, if the priority feature isturned on, the scanner checks the pri-ority channel for activity every 2 sec-onds.

Changing Priority Channels

The scanner automatically desig-nates each bank's first channel as itspriority channel. Follow these steps toselect a different channel as the priori-ty channel for a bank.

1. Press MANUAL .

2. Enter the channel number youwant to select as the priority chan-nel, then press MANUAL again.

3. Hold down PRIORITY until thescanner beeps twice. appearsto the right of the channel number.

4. Repeat Steps 2 and 3 for thechannel in each bank you want toprogram as a priority channel.

To turn on the priority feature, pressPRIORITY during scanning. PRI ap-pears. As you scan the bank, thescanner checks the bank’s priority

channel every 2 seconds in each bankthat is turned on, starting from the low-est to the highest-numbered prioritychannel.

To turn off the priority feature, pressPRIORITY. PRI disappears.

Note: The priority feature must beturned off to use the data skip feature(see “Skipping Data Signals” onPage 25).

Locking Out Priority Channels

You can lock out priority channels. Ifyou lock out all priority channels, CH Loc Out appears when you turnon the priority feature.

P

P

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SPECIAL FEATURES

DELAY

Many agencies use a two-way radiosystem that might have a period of 2or more seconds between a transmis-sion and a reply. To keep from miss-ing a reply, you can program a 2-second delay into any channel or fre-quency. The scanner continues tomonitor the frequency for 2 secondsafter the transmission stops before re-suming scanning or searching.

To program a 2-second delay:

• If the scanner is scanning chan-nel-storage banks and stops onan active channel where you wantto store a delay, quickly pressDELAY before scanning resumes.DELAY appears.

• If the desired channel is notselected, manually select thechannel, then press DELAY.DELAY appears.

• If the scanner is searching, pressDELAY. DELAY appears and thescanner automatically adds a 2-second delay to every transmis-sion it stops on in that band orlimit range.

To turn off the 2-second delay, pressDELAY while the scanner is monitoringthe channel or searching servicebanks or limit ranges. DELAY disap-pears.

TURNING CHANNEL-STORAGE BANKS ON AND OFF

You can turn each channel-storagebank on and off. When you turn off abank, the scanner does not scan anyof the 50 channels in that bank.

For banks 1–10, while scanning pressthe number key that corresponds tothe bank you want to turn on or off.For banks 11–20, press SHIFT, thenpress the number key that corre-sponds to the bank you want to turnon or off.

Notes:

• You can manually select anychannel within a bank, even if thatbank is turned off.

• You cannot turn off all banks. Onebank is always active.

LOCKING OUT CHANNELS AND FREQUENCIES

You can scan existing channels orsearch frequencies faster by lockingout channels or frequencies that havea continuous transmission, such as aweather channel.

Note: If you just want to skip over alengthy transmission (such as a mo-dem signal), see “Skipping Data Sig-nals” on Page 25.

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Locking Out Channels

To lock out a channel while scanning,press L/O when the scanner stops onthe channel. To lock out a channelmanually, select the channel andpress L/O until L/O appears.

Note: You can still manually selectlocked-out channels.

To remove the lockout from a channel,select the channel and press L/O untilL/O disappears.

To remove the lockout from all chan-nels in the channel-storage banks thatare turned on, press MANUAL to stopscanning, then hold down L/O until thescanner beeps twice.

Locking Out Frequencies

To lock out a frequency during a limitsearch or service bank search, pressL/O when the scanner stops on thefrequency. The scanner locks out thefrequency, then continues searching.To lock out a frequency manually, se-lect the frequency and press L/O untilL/O appears.

Notes:

• The scanner does not displaylocked-out frequencies during asearch.

• L/O appears when you select alocked-out frequency.

• You can lock out up to 50 frequen-cies during a limit search and 20during a service bank search. Ifyou try to lock out more frequen-cies, the first locked-out frequencyis automatically unlocked.

To remove the lockout from a fre-quency, select the frequency thenpress L/O. L/O disappears.

To remove the lockout from all fre-quencies, while searching, pressHOLD then hold down L/O until thescanner beeps twice.

TURNING THE KEY TONE ON AND OFF

The scanner is preset to sound a toneeach time you press a key. To turn offthe key tone, turn off the scanner.Then, while holding down L/O/SKIP ,turn on the scanner. OFF bEEP brieflyappears. To turn the key tone back on,repeat this procedure. on bEEP brief-ly appears.

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CHANGING SEARCH SPEEDS

The PRO-2052 has two searchspeeds for a limit search.

To switch between the normal and Hy-perSearch speeds during a limitsearch, press SPEED. SEARCH flash-es during HyperSearch.

Note: You can use HyperSearch onlyin the 5 kHz step bands (29–54 MHz,137–174 MHz, and 216–224.995MHz).

SKIPPING DATA SIGNALS

You can set the scanner so it skipsnonmodulated or data signals (suchas modem transmissions) during ascan or search.

Note: Since data signals are not gen-erally found in the air and VHF TVbands, this feature does not work inthose bands.

To turn on the data skip feature, besure the priority feature is turned off(see “Priority” on Page 21), then pressDATA . DATA appears. To turn off thefeature, press DATA again. DATA dis-appears.

USING NWR-SAME AND WEATHER ALERT

Traditional weather radios simply re-ceive the NOAA (National Oceanicand Atmospheric Administration) wea-ther broadcast (usually within a 50-mile radius), then sound an alarm ifany emergency code was transmittedalong with the broadcast. This meansthat people who live outside an affect-ed area are often alerted even whentheir area is not affected, causingmany of them to ignore potentially realweather warnings that can save lives.

In 1994, NOAA began broadcastingcoded signals called FIPS (Federal In-formation Processing System) codesalong with their standard weatherbroadcasts from stations in your area.These codes identify the type of emer-gency and the specific geographicarea (such as a county) affected bythe emergency. Your scanner re-ceives, interprets, and displays infor-mation about the codes so you candetermine if the emergency mightaffect your area. Only SAME-compatible radios (such as thisscanner) are able to take advantageof this new technology.

Normal Search HyperSearch

100 steps/second

300 steps/second

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Each FIPS code identifies a specificgeographic area (defined by the Na-tional Weather Service), so your scan-ner sounds an alert only when aweather emergency is declared in thatarea. This helps you more efficientlytrack the weather conditions in andaround your area.

When a Weather Alert Occurs

When the scanner receives a weatheralert:

• it sounds a series of beeps

• an indicator appears

The scanner also receives otherweather-related signals such as testevents (TSt appears) and otherevents (--- appears)

Warning: The NWS (National Weath-er Service) uses sophisticated weath-er models to determine an alert’seffective time. However, the end of analert does not necessarily mean thatthe related weather emergency isover.

Note: Once the scanner receives theSAME code, it retains the informationin the scanner’s memory. This infor-mation stays in memory even if youchange modes, but is erased whenyou turn the scanner off.

Understanding FIPS Codes

For the purpose of broadcastingweather information, the NWS has di-vided the United States into regionsby state and county (or parish, whereapplicable) then assigned a 6-digitFIPS code to identify each county orparish. For example, the code for Tar-rant County, Texas, is 048439.

The firstdigit in aFIPS codeidentifiesthe countysubdivi-sion, thenext twodigits identify the state, and the lastthree digits identify the county or par-ish.

Note: Most FIPS codes begin with 0,which means the code represents anentire county. The NWS, however,plans to eventually subdivide somelarge counties. When that happens,each subdivision will be assigned adigit from 1–9, resulting in codes suchas 148439, 248439, and so on.

Your scanner can receive all SAMEalert signals broadcast within about a50-mile radius of where you installedit. To receive SAME alerts and broad-casts about weather occurring only inparticular counties within that area,you can program up to fifteen FIPScodes into the scanner’s memory (see“Entering Your Area’s FIPS Code(s)”

048439

State

County Subdivision

County/Parish

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on Page 28). For example, this letsyou avoid hearing an alert that appliesto an area within a 50-mile radius butnot necessarily to your county or par-ish.

Note: If you do not program any FIPSlocation codes into the scanner’s firstmemory (F1), the scanner sounds analert if it receives a weather alert withany FIPS code.

Obtaining Your Area’sFIPS Code(s)

To obtain the FIPS code for the loca-tion where you installed your scanner,contact your local RadioShack storeor call the NWS toll free at 1-888-NWR-SAME (1-888-697-7263). If youcall the NWS, follow the instructionsyou hear.

Note: If you are close to a county orparish line, you might want to obtainthe codes for the nearby counties orparishes.

Hint: Since you can program up to fif-teen FIPS codes into the scanner’smemory, you might want to obtain thecode for other local areas that you fre-quently travel through (as long asthese areas are within a 50 mile radiusof your location and within an areacovered by your local NWS broadcaststation). That way, you can programthose codes into the scanner and re-ceive broadcasts covering those loca-tions, too.

Turning on the SAME and Weather Alert

1. Repeatedly press SVC until appears above WX.

2. Press ALERT. ALERT appearsand the scanner is set to receive aSAME-coded signal. The scan-ner’s audio is muted until itreceives the signal.

When the scanner receives a SAME-coded signal, it sounds a series ofbeeps, ALERT flashes, and L3 (if thebroadcast is a statement), L2 (if thebroadcast is a watch), or L1 (if thebroadcast is a warning) appears. Afterthat, the scanner automatically tunesto the weather channel where thecode was broadcast and you hear theweather broadcast.

To stop the alert, press any key on thescanner. The alert sound stops andyou hear the weather broadcast.

Warning: If severe weather threatens,do not wait for an alert tone; turn onthe weather broadcast and monitorthe weather information.

To detect a SAME-coded signal on aspecific weather channel, press HOLDduring weather search to stop on aspecific channel, press ▲ or ▼ to se-lect the desired weather channel, thenpress ALERT . ALERT appears.

When the scanner detects a SAME-coded signal broadcast on the weath-er channel you selected, it sounds a

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series of beeps and L3 (if the broad-cast is a statement), L2 (if the broad-cast is a watch), or L1 (if thebroadcast is a warning) appears.

Once the scanner receives a SAME-coded signal, it retains the informationin its memory. This information staysin memory even if you change modes,but is erased when you turn off thescanner. You can switch to weathersearch mode to check the alert level.

Entering Your Area’s FIPS Code(s)

1. Turn on the SAME alert function(see “Turning on the SAME andWeather Alert” on Page 27).

2. Hold down E until F1 appears.

3. Enter the FIPS code using thenumber keys, then press E.

4. To enter another FIPS code, press▲ or ▼, then repeat Steps 2 and3.

Note: To clear a FIPS code youentered in Step 3 (while the codeappears on the display), press 0then E.

5. When you finish, press SVC.

Note: If you do not program any FIPSlocation codes into the scanner’s firstmemory (F1), the scanner sounds analert if it receives a weather alert withany FIPS code.

TESTING WEATHER ALERT RECEPTION

For your scanner to effectively warnyou about weather alert signals, youmust place it where it can receive anemergency alert broadcast and whereyou can hear its alert tone.

In the United States, the NWS broad-casts a test alert every week onWednesday between 11 AM and 1PM. To find out the specific testschedule in your area, contact your lo-cal NOAA or NWS office. These offic-es are usually listed in the telephonebook under “US Government, Depart-ment of Commerce.”

Important: The fact that you get clearreception of a weather broadcast sig-nal does not guarantee that an emer-gency alert broadcast will trigger yourscanner’s alert function.

Note: The NWS might not broadcastthe test alert if there is bad weather inany surrounding area.

Testing the Alert Beep

1. If necessary, repeatedly pressSVC until appears above WX.

2. If necessary, press ALERT soALERT is not on the display.

3. Hold down ALERT for about 3 sec-onds. The scanner sounds a loudseries of beeps.

4. Press any key to stop the alert.

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Testing NWR-SAME Code Detection

1. Turn on the SAME alert function(see “Turning on the SAME andWeather Alert” on Page 27).

2. Hold down ALERT for about 3 sec-onds. The selected frequencynumber and TESt alternate onthe display. Then, when the scan-ner receives a test code, TStappears.

3. Press ALERT to exit the testmode.

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TRUNK SCANNING

Your scanner is designed to tracktransmissions on Motorola Type I,Type II, GE/Ericsson EDACS, and hy-brid analog trunking systems. Re-member these important points whentracking transmissions:

• Your scanner monitors Type IIsystems by default. However, youcan change this if the system inyour area is different (see “Typesof Trunking Systems” on this pageand “Scanning Type I and HybridTrunked Systems” on Page 40 formore information).

• Your scanner tracks a trunkedsystem or scans frequencies inconventional mode, but it cannotdo both at the same time.

• The frequencies for many of the800 MHz public safety systemsare listed in the separate “NationalPublic Safety Trunked SystemFrequency & Talk Group Guide”included with this scanner.

TYPES OF TRUNKING SYSTEMS

Your trunk scanning scanner canmonitor three basic types of systems— Type I, Type II, and EDACS. In-stead of selecting a specific frequencyto transmit on, a trunked systemchooses one of several frequencies ina 2-way radio user’s talk group whenthat user presses PTT (push to talk).Thus, trunking systems allocate a fewfrequencies among many different us-ers, but the way Type I and Type IIsystems do this is slightly different.

One important distinction betweenthese systems is the amount of datatransmitted by each radio when itsPTT button is pressed. In a Type Isystem, the radio’s talk group ID andits current affiliation (the trunk systemit belongs to) are both transmitted. In aType II system, only the radio’s talkgroup ID is transmitted.

Why the difference? In Type I sys-tems, each radio in the trunk group in-dividually transmits its own affiliation,while the trunk system maintains a da-tabase that determines each radio'saffiliation(s) in Type II systems.

Another difference between the sys-tems is that Type I systems are ar-ranged in a fleet-subfleet hierarchy.For example, it is possible for a cityusing a Type I system to designatefour fleets, each with eight subfleets.

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The fleets might be the police depart-ment, the fire department, the utilities,and city administration. The policemight decide to further divide its fleetinto subfleets such as dispatch, tacti-cal operations, detectives, north,south, east, and west side patrols, andsupervisors. All the available police ra-dios would then be assigned to one ofthe police subfleets, letting the policecentralize their communications andcontrol the type of users on a singlesystem. Determining the exact fleet-subfleet hierarchy for a particular areais referred to as fleet map program-ming.

The disadvantage of a Type I systemis that the brief burst of data sentwhen a user transmits must containthe radio’s talk group ID, and its fleetand subfleet. This is three times theamount of data a Type II system radiosends. Since the data capacity ofType I systems is limited and theamount of data increases with eachuser, Type I systems usually accom-modate fewer users than Type II sys-tems. Nevertheless, Type I systemsare still in use.

There are also hybrid systems whichare a combination of both Type I andType II. Your scanner defaults to mon-itor Type II systems, but you canchange to Type I or a hybrid of Type Iand Type II systems by selecting a preprogrammed fleet map or creating acustom fleet map for your area (see“Scanning Type I and Hybrid TrunkedSystems” on Page 40).

You do not need to determine thefleet-subfleet hierarchy for Type II sys-tems unless you are tracking hybridsystems that contain both Type I andType II systems.

SETTING THE SCANNER TO THE TRUNK SCANNING MODE

Press TRUNK to switch between thescanner’s conventional and trunkscanning modes.

SETTING SQUELCH FOR THE TRUNK SCANNING MODE

The squelch setting can affect howfast your scanner acquires the datachannel, and in some instances, canprevent your scanner from acquiringthe data channel at all.

Adjusting SQUELCH is necessary totrack transmissions precisely.

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We recommend you set SQUELCH tothe position shown here before select-ing a trunked bank.

Note: Change this setting as neces-sary to get the best performance inyour area.

PROGRAMMING TRUNKED FREQUENCIES

Before you program your scanner totrack a trunked system, consider thefollowing:

• Valid trunked system frequenciesare as shown below.

Motorola system:935.0125–939.9875 MHz(in 12.5 kHz steps)851.0000–868.9875 MHz(in 12.5 kHz steps)406.0000–512.0000 MHz(in 12.5 kHz steps)137.0000–174.0000 MHz(in 5 kHz steps)

Ericsson EDACS system:900.0000–956.000 MHz(in 12.5 kHz steps)

806.0000–899.9875 MHz(in 12.5 kHz steps, exceptcellular frequencies)406.0000–512.0000 MHz(in 12.5 kHz steps)137.0000–174.0000 MHz(in 5 kHz steps)

• You can use any of your scanner’sbanks as either a trunk scanningbank or conventional scanningbank, but you cannot mix the two.

• The scanner only scans onetrunked system at a time. Al-though you can store frequenciesfor more than one trunked systemin one of your scanner’s banks,the scanner only scans the fre-quencies associated with the firstdata channel it finds.

Before scanning a trunked system’stransmissions, you must store thetrunked system’s frequencies in one ofthe banks in your scanner by followingthese steps.

1. Set the scanner for conventionalscanning, then hold down TRUNKuntil the scanner beeps twice.BANK, TRUNK, and the banknumbers flash.

2. Press a number key to select thebank for the trunked system’s fre-quencies. To select a bankbetween 11 and 20, press SHIFTthen the number keys. The scan-ner displays one of six systemtypes.

3. Use ▲ or ▼ to select the systemtype, then press E.

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4. Use the number keys to enter thetrunked system’s frequencies,then press E.

Note: If you entered an invalid fre-quency, the scanner beeps, thechannel number flashes andError appears. Press CLEAR toclear the frequency, then repeatStep 4.

5. Press either MANUAL or ▲ toselect the next channel in thebank.

6. Repeat Steps 4 and 5 until all fre-quencies have been entered.

SCANNING A TRUNKED BANK

You can scan one trunked bank at atime. Once you have stored frequen-cies for a trunked system in one ormore of the 20 available banks, andyou are scanning non-trunked fre-quencies, follow these steps to begintrunk scanning.

1. Turn on the scanner and beginscanning in conventional mode.

2. Press TRUNK. The indicators forall banks that have been pro-grammed with trunked frequen-cies flash, and TRUNK and BANKappear.

3. To see all banks programmed withMotorola system frequencies,press ▲. All banks programmedwith Motorola system frequenciesflash. To see all banks pro-grammed with EDACS system fre-quencies, press ▲ again. Allbanks programmed with EDACSsystem frequencies flash.

4. Use the number keys to activatethe trunked bank you want toscan. appears under theselected bank’s number.

5. Press SEARCH. As the scannersearches for the trunk’s datachannel (the channel that con-trols the trunk), SEARCH flashes.When the scanner finds the datachannel, it begins trunk scanning.

If you entered all of the trunk’s fre-quencies, you should be able tofollow conversations betweenbroadcasters even when theychange frequencies. IDs whichrepresent different service groupsappear.

Note: To see the bank currently inuse (for about 5 seconds), pressDATA .

6. To return to conventional scan-ning, press TRUNK again.

You See Trunk System

E 1 Motorola Type I,800 MHz frequencies

Ed EDACS frequencies

E2 – UHF Motorola Type II,UHF frequencies

E2 – Hi Motorola Type II,VHF frequencies

E2 – 800 Motorola Type II,800 MHz frequencies

E2 – 900 Motorola Type II,900 MHz frequencies

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Hint: While scanning, you will notknow exactly whom the talkgroup IDsare assigned to until you listen awhileor until you locate talkgroup ID lists infrequency guides or on internet sitessuch as www.trunkscanner.com. With-in a few minutes, you can usually fig-ure out if what you are listening to is apolice, fire, or emergency medical 2-way radio user. Other talkgroup IDsmight take some time, but determiningwhom each ID represents is half thefun of trunk scanning!

Turning Banks On or Off During Trunk Scanning

As in conventional scanning, you canturn each channel-storage bank onand off during trunk scanning. Whenyou turn off a bank, the scanner doesnot scan any of the 50 channels in thatbank.

1. Press DATA . All active trunk banknumbers appear.

2. Press the number key for the bankyou want to add or delete.

If the bank number is off, the scannerdoes not scan any of the channelswithin that bank.

Skipping the Trunked Bank

To skip to another trunked bank whileyou are listening to a trunked bank,hold down DATA .

Turning Status Bit IgnoreOn or Off

You can set how your scanner workswith status bits (also called S-bits), let-ting you control how the scanner inter-prets and displays talkgroup IDs.

The last four bits of a Motorola Type IItalkgroup ID (a binary 16-bit code) arethe status bits. In some systems, sta-tus bits identify special situations(such as an emergency status).

Your scanner is preset to assume thatthe status bits in a talkgroup ID are setto 0 and ignores them. For example,when the scanner receives the talk-group ID 010111001110 0011, itreads the ID as 010111001110 0000and converts the first 12 bits of the IDto 23776 (the talkgroup ID). However,since the status bit value is 3 (0011converted to decimal equals 3), the IDis actually 23779.

If you are scanning a Motorola Type Isystem and do not have a fleet mapfor that system, you might have to turnoff status bit ignore in order to deter-mine the proper fleet map.

Important: If you are scanning anysystem other than a Motorola Type Isystem, be sure status bit ignore is setto ON or you will miss some transmis-sions.

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Follow these steps to turn status bit ig-nore on or off.

1. Hold down SCAN until the currentstatus bit ignore setting (ON orOFF) appears.

2. Press ▲ or ▼ to select ON or OFF,then press E.

Identifying a Trunked Frequency

To identify a trunked frequency, press▼ when the scanner stops on a talk-group ID. The trunked frequency brief-ly flashes twice. To show the fre-quency longer, hold down ▼. Thescanner beeps, then the trunked fre-quency and talkgroup ID alternate.

Switching EDACS Format

The EDACS system uses two groupID formats: Agency-Fleet-Subfleet(AFS) and Decimal. If you use a list ofIDs shown in one format (AFS) andthe ID you want to receive is in theother format (such as decimal, for ex-ample), hold down SVC to switch tothe decimal format. The ID appears indecimal format and E flashes.

EDACS ID Range Search

To make searching for EDACS IDsfaster, set a range for the Agency orFleet listings. Simply use the numberkeys to enter the Agency or the Agen-cy and the Fleet listing, then press

SEARCH. Note the following exam-ples.

Example 1 Agency = 01Press 0 1 . SEARCH.01 --- appears during search.

Example 2Agency = 01, Fleet = 01Press 0 1 . 0 1 SEARCH.01-01- appears during search.

To stop an ID range search, pressSEARCH again.

Using Trunk Scanning Scan Delay

Many trunked systems have a periodof 2 or more seconds between a trans-mission and a reply. You can pro-gram a 5-second delay so thescanner holds on an ID for 5 secondsto wait for a reply. The scanner contin-ues to monitor the frequency for 5 sec-onds after the transmission stopsbefore resuming scanning.

Press DELAY to turn trunk scanningscan delay on or off. DELAY appearswhen trunk scanning scan delay isset.

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Note: If you consistently miss re-sponses even with trunk scanningscan delay set, you might need tochange the default system type or thefleet map you are using. See “Scan-ning Type I and Hybrid Trunked Sys-tems” on Page 40.

Monitoring an Active ID

When the scanner stops on a trans-mission, follow these steps to hold thescanner on that transmission.

Note: You can also follow these stepsto hold on an ID while scanning a scanlist. See “Scan Lists” on Page 37.

1. Press HOLD. HOLD appears andthe scanner stays on the currentID.

2. To continue trunk scanning, pressSEARCH.

Locking Out IDs

As with conventional scanning, it ispossible to lock out unwanted traffic.This is particularly important in trunk-ed systems because signals you can-not listen to (such as water meters,door alarms, traffic signals, and en-crypted signals) are assigned IDs justlike other users. You can lock out upto 100 IDs.

To lock out an ID, press L/O when theID appears. The ID is locked out, andthe next active ID appears.

Note: If you lock out an ID whilesearching, it is also locked out of thescan list(s). See “Scan Lists” onPage 37.

Unlocking a Single ID

1. Hold down L/O until you hear twoshort beeps.

2. Repeatedly press ▼ or ▲ to selectthe ID you want to unlock.

3. Press L/O. The ID is unlocked andthe next locked ID appears.

4. Press SEARCH to resume the pre-viously selected function.

Unlocking All IDs

Hold down L/O until you hear two shortbeeps, then press E to unlock all theIDs at once. The scanner beeps twice.

Note: When you unlock all the IDs,the scan list mode appears. PressSCAN to scan the IDs stored in yourscan lists or press SEARCH to resumethe previously selected function. Formore information about scan lists, see“Scan Lists” on Page 37.

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MONITORING IDS

You can use your scanner’s display tomonitor the frequencies in a trunkedsystem for activity. You cannot hearconversations in this mode, but this isan excellent way to determine whichtalk groups are the most active.

To set the scanner to monitor IDs,hold down SEARCH until the scannerbeeps twice. SEARCH flashes, and alltalk group IDs appear in succession.To stop monitoring IDs, pressSEARCH again.

Note: When you monitor IDs, locked-out IDs also appear.

CHANNEL ACTIVITY INDICATORS

Your scanner has 20 channel activityindicators (bars). The bars show thattransmissions are being received on atrunked system.

You can use the bars to tell how manyfrequencies are being used and gen-erally monitor how much communica-tion traffic is occurring on a trunkedsystem.

• A bar that remains on steadilyeven when there are no currenttransmissions represents the fre-quency being used as the datachannel.

• The bar that flashes when an IDappears represents the frequencybeing used by the radio you arecurrently hearing.

• If a bar turns on but you do nothear a conversation, the channelis probably being used for a tele-phone interconnect call or a pri-vate call, or the indicator might bea locked-out ID. Your scannerdoes not monitor these types ofcalls.

• If the scanner is holding on an IDwhich is not active, the other barsturn on and off as other groupsuse the system

A bar appears for each frequency youstore in a trunking bank.

SCAN LISTS

When you program trunked frequen-cies into a bank (see “ProgrammingTrunked Frequencies” on Page 32),your scanner sets up 5 scan lists intowhich you can store your favorite IDs.Each list can contain up to 10 IDs, soyou can store a total of 50 IDs for eachtrunk scanning bank (1000 IDs if youuse all banks as trunking banks).

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Scan lists help you organize trunkingsystem users into categories. For ex-ample, you might use List 1 for policeIDs, List 2 for fire department IDs, List3 for emergency medical service IDs,and so on. Once IDs are stored inlists, you can scan them like you scanconventional channels. You can pro-gram IDs into scan lists manually, dur-ing a search, or automatically.

Manually Storing IDs into Scan Lists

1. Select the desired trunking bank(see “Scanning a Trunked Bank”on Page 33).

2. After the scanner begins trunkscanning, press MANUAL . A scanlist number appears at the top ofthe display, and a bar shows thechannel activity.

3. Repeatedly press ▲ or ▼ to selectthe scan list location you want toprogram.

4. Enter the Type II ID you want tostore, then press E.

Or, to enter a Type I ID:

a. Use the number keys to enterthe block number and the fleetnumber, then press •.

b. Enter the subfleet number, thenpress E.

Note: To clear a mistake whileentering an ID, press CLEAR , thenstart over at Step 4.

Or, to enter an EDACS ID:

a. Use the number keys to enterthe agency number, then press •.

b. Enter the fleet number, then thesubfleet number, then press E.

5. Repeatedly press MANUAL or ▲

to select the next scan list locationyou want to program. Then repeatStep 4 to enter another ID.

Storing IDs into Scan Lists While Searching

Follow these steps to select a scan listlocation and store an ID during asearch.

1. When your scanner stops on anID you want to store, press PRI-ORITY. The currently selectedscan list memory location flashes.

2. Press E to store the ID in theselected scan list memory loca-tion. Or, repeatedly press ▲ or ▼to select another location, thenpress E.

3. Press SEARCH to resume search-ing.

Scan List Number

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Automatically Storing an ID in a Scan List Location

To store an ID in the first availablescan list location during a search,press E at any time after the scannerstops on that ID.

Or, follow these steps to store an ID ina specific scan list location.

1. Press PRIORITY when the desiredID appears.

2. Repeatedly press ▲ or ▼ tochoose a specific scan list loca-tion.

3. Press E.

Note: An ID you enter into a scan listlocation automatically overwrites anyID that is already stored in that loca-tion.

To display a scan list location andstore an ID in that location during asearch, press PRIORITY to display thecurrent scan list location, then press Ewhen your scanner stops on an ID youwant to store.

Deleting a Stored ID

1. Press MANUAL .

2. Repeatedly press ▲ or ▼ to selectthe scan list location (shown at thetop of the display) you want todelete.

3. Press 0 then E.

SCANNING THE SCAN LISTS

Press SCAN to begin scanning thelists you have programmed. IdSCAN scrolls on the display.

Note: If more than one of the scan IDsyou have stored do not work, Errorflashes twice and the scanner beepsseveral times, then the scan list num-bers appear at the top of the display.

To remove a scan list from activescanning, use the number keys to en-ter the scan list’s number. The scanlist indicator turns off, and the IDs inthat list are not scanned.

Note: You cannot remove all the scanlists. One scan list must always be ac-tive.

To restore a scan list to active scan-ning, use the number keys to enter itsnumber again.

Press SEARCH to return to the previ-ously selected function.

Priority ID Scanning

As in conventional scanning, you candesignate one ID in each scan list as apriority ID.

To select an ID as a priority ID, holddown PRIORITY for about 2 secondswhen the scanner stops on the ID. Pappears.

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Press PRIORITY to turn on priorityscanning.

Note: Priority scanning does not workif the ID is locked out.

SCANNING TYPE I AND HYBRID TRUNKED SYSTEMS

Your PRO-2052 is set to scan Type IIuser IDs by default. When you scantrunked frequencies, each Type II userID you see appears as an even num-ber without a dash (such as 2160).Your PRO-2052 can also scan Type Itrunked systems. Each Type I ID ap-pears as a three- or four-digit number,followed by a hyphen, followed by aone- or two-digit number (such as200-14).

If you notice a mix of odd- and even-user IDs (such as 6477, 2160, 6481,6144, and 1167), then you are proba-bly monitoring either a Type I or hybrid(a combination of Type I and Type IIuser IDs) system. (See “Types ofTrunking Systems” on Page 30).

You might also notice that you aremissing responses when you hold onan active ID. Unlike Type II systems,Type I and hybrid systems require afleet map that sets specific fleet-subfleet parameters. It is easy to se-lect a fleet map to scan; what is not al-ways easy is selecting or program-ming a map that is being used in yourparticular area.

When a Type I system is designed,the address information for all its userIDs is divided into 8 equal-size blocks,numbered 0–7, and each block is as-signed a size code. When you set upyour scanner to track a Type I system,you must choose a size code for eachblock. When you have chosen a sizecode for all 8 blocks, you will have du-plicated the fleet map for the systemyou are tracking. If you have chosencorrectly, you will be able to tracktransmissions in that system.

Each size code defines the number offleets, subfleets, and IDs each blockhas. For example, you can see in thefollowing table that a size code of S4has one fleet, which is divided into 16separate subfleets, and it has a totalof 512 individual IDs.

Size Fleets Sub-fleets

IDs Block Used

S0 Reserved block for Type II IDs

S1 128 4 16 1

S2 16 8 64 1

S3 8 8 128 1

S4 1 16 512 1

S5 64 4 32 1

S6 32 8 32 1

S7 32 4 64 1

S8 16 4 128 1

Size Fleets Sub-fleets

IDs Block Used

S9 8 4 256 1

S10 4 8 256 1

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Each ID in the block is unique. Theleft-most digit is the block number inthe ID. The next two digits identifywhich fleet is active, and the last dig-it(s) (after the hyphen) identifies thesubfleet.

The size codes selected by a Type Isystem designer depend on the spe-cific needs of the system’s users.Some organizations might want manysubfleets with only a few radios each,while another organization might wantonly a few subfleets, with many radioseach. To scan Type I systems, youmust select or program a fleet mapwith the same size code assignmentsas the trunked system. If you do thisaccurately, you will track all the fleetand subfleet combinations used by thesystem. In other words, you will hearcomplete communications while moni-toring a trunked system.

Note: www.trunkscanner.com plans tomake preset fleet maps available asthey become known.

If you do not already know the sizecodes used, you will have to guessthem. But since you do not have to fig-ure out all the blocks at once, this isnot as hard as it seems. Select a sizecode for a block, then press SEARCH.

Now listen to the communications. Ifyou decide you are receiving most ofthe replies to the conversations withIDs assigned to the block you just pro-grammed, then you have probably se-lected the right size code and canwork on the next block of the map.

There are 16 preset fleet maps tochoose from, and it is best to start withthese when setting up a Type I or hy-brid trunk scanning bank. If none ofthe following preset fleet maps allowyou to follow complete conversations,then you probably need to programyour own fleet map (see “Program-ming a Fleet Map” on Page 44).

S11 2 16 256 1

S12 1 16 1024 2

S13 1 16 2048 4

S14 1 16 4096 8

E1P1 E1P2

Block SizeCode

Block SizeCode

0 S11 0 S4

1 S11 1 S4

2 S11 2 S4

3 S11 3 S4

4 S11 4 S4

5 S11 5 S4

6 S11 6 S4

7 S11 7 S4

E1P3 E1P4

Block SizeCode

Block SizeCode

0 S4 0 S12

1 S4 1 (S12)

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E1P3 E1P4

Block SizeCode

Block SizeCode

2 S4 2 S4

3 S4 3 S4

4 S4 4 S4

5 S4 5 S4

6 S12 6 S4

7 (S12) 7 S4

E1P5 E1P6

Block SizeCode

Block SizeCode

0 S4 0 S3

1 S4 1 S10

2 S12 2 S4

3 (S12) 3 S4

4 S4 4 S12

5 S4 5 (S12)

6 S4 6 S12

7 S4 7 (S12)

E1P7 E1P8

Block SizeCode

Block SizeCode

0 S10 0 S1

1 S10 1 S1

2 S11 2 S2

3 S4 3 S2

4 S4 4 S3

E1P7 E1P8

Block SizeCode

Block SizeCode

5 S4 5 S3

6 S4 6 S4

7 S4 7 S4

E1P9 E1P10

Block SizeCode

Block SizeCode

0 S4 0 S0

1 S4 1 S0

2 S0 2 S0

3 S0 3 S0

4 S0 4 S0

5 S0 5 S0

6 S0 6 S4

7 S0 7 S4

E1P11 E1P12

Block SizeCode

Block SizeCode

0 S4 0 S0

1 S0 1 S0

2 S0 2 S0

3 S0 3 S0

4 S0 4 S0

5 S0 5 S0

6 S0 6 S0

7 S0 7 S4

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Selecting a Preset Fleet Map


2. Press a number key to select thebank where you want to store thepreset fleet map.

3. Repeatedly press ▲ or ▼ to selectE1 (Type I and hybrid), then pressE.

4. Press DATA .

5. Repeatedly press ▲ or ▼ to selectthe name of the desired map(such as E1P7), then press E.

The scanner then searches for trans-missions using the preset map youchose.

Note: When the scanner searches fortransmissions, you see Type I fleetand subfleet IDs such as 100-12 ,100-9 , 000-12 , or 400-8 .

How do you know if the preset mapyou selected is correct? Listen to seeif you are following complete conver-sations. If not, try another preset map.

E1P13 E1P14

Block SizeCode

Block SizeCode

0 S3 0 S4

1 S3 1 S3

2 S11 2 S10

3 S4 3 S4

4 S4 4 S4

5 S0 5 S4

6 S0 6 S12

7 S0 7 (S12)

E1P15 E1P16

Block SizeCode

Block SizeCode

0 S4 0 S3

1 S4 1 S10

2 S4 2 S10

3 S11 3 S11

4 S11 4 S0

5 S0 5 S0

6 S12 6 S12

7 (S12) 7 (S12)

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Programming a Fleet Map


2. Press a number key to select thebank where you programmedType I trunk frequencies.

3. Repeatedly press ▲ or ▼ until E1appears, then press E.

4. Press DATA .

5. Repeatedly press ▲ or ▼ untilUSr appears, then press DATA .

6. Repeatedly press ▲ or ▼ to selectthe size code for the first block,then press E. The next availableblock appears.

7. Repeat Step 6 until you haveselected a size code for eachblock you want to work with.

8. Press SEARCH. The scanner exitsthe trunking programming mode,tunes the data channel, thenbegins to search using the mapyou programmed.

Note: If you select size code S12,S13, or S14, these restrictions apply:

• S12 can only be assigned toBlocks 0, 2, 4, or 6.

• S13 can only be assigned toBlocks 0 and 4.

• S14 can only be assigned to Block0.

Since these size codes require multi-ple blocks, you will be prompted forthe next available block when pro-gramming a fleet map. For example, ifyou assign Block 0 as an S12, thescanner prompts you for b2 , the nextblock available, instead of b1 . And ifyou assign Block 0 as an S14, youwould not see another prompt be-cause it uses all available blocks.

Programming a Hybrid System

A hybrid system is simply a Type Isystem with some of its blocks desig-nated as Type II blocks. To program ahybrid system, follow the steps listedin “Programming a Fleet Map” on. However, if you want a blockto be Type II, select size code S0 inStep 6.

Programming the Base and Offset Frequencies

To properly track Motorola VHF andUHF trunked systems, you must pro-gram the applicable base and offsetfrequencies for each system.

These settings can be found atwww.trunkscanner.com and similarfrequency resources.

1. Set the scanner for conventionalscanning, then hold down TRUNKuntil the scanner beeps twice.

2. Press the number key of the bankwhere you want to store the basefrequency.

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3. Repeatedly press ▲ or ▼ to selectE2-Hi or E2-UHF, then press E.

4. Press DATA . The preset base fre-quency appears.

5. Enter a desired frequency, thenpress E.

6. Press DATA . The preset offset fre-quency appears.

7. Enter the frequency using thenumber keys according to the fol-lowing guide, then press E:

• For Motorola Type II VHF, (E2-Hi band) use 5 kHz stepsbetween 5 kHz–100 kHz.

• For Motorola Type II UHF, (E2-UHF band) use 12.5 kHz stepsbetween 12.5 kHz–100 kHz.

Note: For example, if you pro-gram 406.0250 as a trunked fre-quency, the base and offsetfrequencies are as follows:

• BASE: 406.0000 MHz, OFFSET:12.5 kHz=Channel 2

• BASE: 406.0000 MHz, OFFSET:25.0 kHz=Channel 1

8. Repeat the steps under “Program-ming Trunked Frequencies” onPage 32 to store the trunked sys-tem’s frequencies in your scan-ner’s banks.

Turning the Motorola Disconnect Tone Detect Function On/Off

While trunk scanning a Motorola sys-tem, your scanner automatically tunesto the data channel when it detects adisconnect tone (a code that tells thetrunking system that the transmitterhas finished sending) on the voicechannel.

You can manually turn off this functionso the scanner does not tune to thedata channel under those conditions.Use this feature to listen to weaktransmissions when conversations aregenerally disconnected.

To turn the disconnect tone detectfunction off, set the scanner to trunktrack then press SVC. The scannerbeeps and flashes for about 5seconds.

Notes:

• To set the scanner so it remainson the voice channel (even whena disconnect tone is transmitted orthere is no signal at all) setSQUELCH so you hear a hissingnoise.

• You cannot use the disconnecttone detect function if you are pro-gramming a trunking frequency ora fleet map.

To set the scanner to automaticallytune to the data channel once againwhen it detects a disconnect tone,press SVC. disappears.

DATA

DATA

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PC REMOTE FUNCTION

Your scanner’s PC Remote functionlets you connect the scanner to acomputer then use the computer tooperate most of the scanner’s func-tions, the same way as if you were us-ing the keys on the scanner’s frontpanel.

CONNECTING THE SCANNER TO A COMPUTER

Caution : Always turn off the computerbefore connecting or disconnectingyour scanner. Otherwise you coulddamage your computer or the scan-ner.

To connect the scanner to your com-puter, plug one end of an optional 9-pin serial cable (available at your localRadioShack store) into REMOTE onthe back of the scanner, then plug theother end of the cable into your com-puter’s serial port.

SETTING THE REMOTE COMMUNICATION FORMAT

To set the remote communication for-mat so the scanner and computer cancommunicate with each other, usestandard Windows communicationssoftware (such as Modem Master orHyper Terminal, not supplied). Seeyour software’s documentation formore information about operating it.

Software Settings

Use the following settings for the com-munications software.

Scanner Settings

If necessary, follow these steps tochange your scanner’s BPS (bits persecond) rate.

Note: All other functions are inactivewhile you set the BPS rate.

1. Hold down REMOTE and turn onyour scanner. The current BPSrate appears.

2. If necessary, press ▲ or ▼ tochange the BPS rate.

3. Press E.

4. Turn off the scanner.

BPS rate 2400/4800/9600/19200 BPS

Start/Stop bit 1 bit

Data Length 8 bit

Parity Check None

Code ASCII

Flow Control None

Return Code Carriage Return only

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TURNING THE REMOTE FUNCTION ON AND OFF

To turn the remote function on or off,hold down REMOTE until the scannerbeeps. SFT flashes when the remotefunction is turned on.

PC TO SCANNER COMMANDS

Follow these steps to enter com-mands to operate the scanner usingyour computer.

1. Make sure your computer andscanner are connected (see “Con-necting the Scanner to a Com-puter” on Page 46).

2. Run your computer’s communica-tion software (see “Setting theRemote Communication Format”on Page 46).

3. Type a command listed in the fol-lowing table then press Enter onyour computer’s keyboard.

For this operationType this command

Scan KEY00

Manual KEY01

Select channel 0–9 KEY02 #where # equals the numeric number

. (decimal point)/Clear KEY03

E (Enter) KEY04

Priority/scan speed KEY05

L/O/Skip KEY06

Hold/▲ (up)/Remote KEY07

Limit/▼ (down) KEY08

Search KEY09

SVC KEY10

Data/Alert KEY11

Delay KEY12

Trunk KEY13

Shift KEY14

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PC TO SCANNER FUNCTIONS LIST

For the following functions, type the command then press Enter on your computer’skeyboard.

Function Command

Check frequency stored in a channel # PM###where ### equals the three-digit channel number

Check if Delay is on DL

Clear the scanner’s memory ACImportant: This procedureclears all the informationyou have programmed intothe scanner. Use this proce-dure only when you aresure your scanner is notworking properly.

Check if Data Skip is on DS

Check if Lockout is on LO

Check the lower limit frequency for a limit search

LL

Set the lower limit frequency for a limit search LL########where ######## equals the frequency

Check the upper limit frequency for a limit search

LU

Set the upper limit frequency for a limit search LU########where ######## equals the frequency

Check the status of the current channel MA

Go to a specific channel MA###where ### equals the three-digit channel number

Check the scanner’s mode MD

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Function Command

Check a bank’s priority channel number Note: Enter a letter instead of the bank num-ber. Example: “C” for bank 3.

PC n

Set a bank’s priority channel PC n###where ### equals the three-digit channel number

Check if Priority is on PR

Turn Priority on/off PRN/PRF

Add a frequency to a channel PM### ########where ### equals the three-digit channel number and ######## equals the fre-quency

Check if Squelch Monitor is on QU

Turn Squelch Monitor on/off QUN/QUF

Check if Priority Monitor is on RI

Turn Priority Monitor on/off RIN/RIF

Check scanner modulation setting RM

Check which banks are active SB

Select banks for scanning SB xwhere x equals a matching let-ter equivalent to the bank you want to scan. For example, to scan bank 5, type E. Or, to scan banks 3 and 7, type CG.

Check if Squelch is open SQ

Check for a frequency in search skip memory SS##where ## equals the two-digit memory number

Enter a frequency in search skip memory SS########where ######## equals the frequency

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Function Command

Tune scanner to specific frequency RF########where ######## equals the frequency

Check a Trunk ID memory number IC

Set a Trunk ID memory number IC xwhere x equals a matching let-ter equivalent to the trunk ID memory number

Check if Trunk ID Monitor is on ID

Turn Trunk ID Monitor on/off IDN/IDF

Check if Trunk ID number is in lockout mem-ory

IL###

Enter a Type 1 Trunk ID into lockout memory ILR xyy-zzwhere x = a block numberyy = a fleet numberzz = a sub fleet number

Enter a Type 2 Trunk ID into lockout memory ILR nnnnnnwhere nnnnnn equals an ID number

Enter an EDACS Trunk ID into lockout mem-ory

ILR xx-yyzwhere xx = an agency numberyy = a fleet numberz = a sub fleet number

Confirm EDACS ID mode AF

Change ID to AFS or decimal mode AFN/AFF

Check if S-Bit on BT

Turn S-Bit on/off BTN/BTF

Program fleet block on scanner FB & # %%where & = a bank (A–T)# = a fleet map block number (0–7)%% = a block size indicator (00–14)

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Function Command

Check if Frequency Identification active FI

Turn Frequency Identification on/off FIN/FIF

Check for Speaker Muting mode on/off MU?

Check Speaker Muting mode setting MU

Set Speaker Muting on/auto/off MUN/MUA/MUF

Confrim scan list priority ID location PI #where # equals an ID location number

Set scan list priority ID location PI @#where @ equals an ID list num-ber and # equals an ID location number

Check EDACS ID range mode RG

Set EDACS ID range mode RG @where @ equals a partial EDACS ID. For example, a partial EDACS ID could be 01-, 01-02.

Read scanner information SI

Check for active trunking banks TB

Check status of Tone Detection TD

Turn Tone Detection on/off TDN/TDF

Program Talk Group ID TG * @%& ##-$$where * = a bank number@ = an ID scan list% = an ID location& = a block number## = a fleet number$$ = a sub fleet number

Set trunking on bank of channels TR & # %%%%%%%% $$$$where & = a bank (A–T)# = a trunking type% = a base frequency$ = an offset step

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SCANNER TO PC RESPONSES

The scanner sometimes returns responses via your computer and software. Youmight see any of the following codes.

Code Meaning

NG Invalid command

ERR Command format error

ORER Overrun error

OK Command received

CXXX Channel number

FXXXXXXXX Frequency

TN Trunking frequency

TF Conventional fre-quency

xN (Function) On

xF (Function) Off

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SCANNER MODE CODES

The scanner sometimes returns information about the mode it is operating in viayour computer and software. You might see any of the following codes

Code For this Mode

00 Scan

01 Manual

02 Limit Search

03 Limit Search Hold

04 Service Scan

05 Service Scan Hold

06 Program

07 EDACS Program

08 System Program

09 ID Search

10 ID Search Hold

11 ID Scan

12 ID Manual

13 ID Lockout Review

14 Search Control Channel

15 EDACS ID Search

16 EDACS ID Hold

17 EDACS ID Scan

18 EDACS ID Manual

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Code For this Mode

19 EDACS ID Lockout Review

20 EDACS Search Control Channel

21 VFO

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A GENERAL GUIDE TO SCANNING

Reception of the frequencies covered by your scanner is mainly “line-of-sight.” Thatmeans you usually cannot hear stations that are beyond the horizon.

GUIDE TO FREQUENCIES

National Weather Frequencies

Birdie Frequencies

Every scanner has birdie frequencies. Birdies are signals created inside the scan-ner’s receiver. These operating frequencies might interfere with broadcasts on thesame frequencies. If you program one of these frequencies, you hear only noise onthat frequency. If the interference is not severe, you might be able to turn SQUELCHclockwise to cut out the birdie. This scanner’s birdie frequencies (in MHz) are:

To find the birdies in your individual scanner, begin by disconnecting the antennaand moving it away from the scanner. Make sure that no other nearby radio or TVsets are turned on near the scanner. Use the search function and search every fre-quency range from its lowest frequency to the highest. Occasionally, the searchingwill stop as if it had found a signal, often without any sound. That is a birdie. Make alist of all the birdies in your scanner for future reference.

162.400 162.475 162.525 162.425162.500 162.550 162.450

171.25 406.7625 407.8125 413.175 413.225

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GUIDE TO THE ACTION BANDS

Typical Band Usage (MHz)

VHF BandLow Range 29.00–50.006-Meter Amateur 50.00–54.00Aircraft 108.00–136.00U.S. Government 137.00–144.002-Meter Amateur 144.00–148.00High Range 148.00–174.00FM-TV Audio Broadcast, Wide Band 174.00–216.00New Mobile Narrow Band 220.00–222.001.3-Meter Amateur Band 222.00–225.00Military Aircraft 225.00–287.80

UHF Band Military Aircraft 311.00–384.00U.S. Government 406.00–420.0070-Centimeter Amateur 420.00–450.00Low Range 450.00–470.00FM-TV Audio Broadcast, Wide Band 470.00–512.00Public Service 806.00–823.93Conventional Systems 851.00–856.00Conventional/Trunked Systems 856.00–861.00Trunked Systems 861.00–866.00Public Safety 866.00–868.93High Range 896.11–902.0033-Centimeter Amateur 902.00–928.00Private Trunked 935.00–940.00General Trunked 940.00–941.00Fixed Services 941.00–944.00Studio-to-Transmitter Broadcast Links 944.00–952.00Private Fixed Services, Paging 952.00–960.00Aeronautical Navigation 960.00–1240.0023-Centimeter Amateur 1240.00–1300.00

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Primary Usage

As a general rule, most of the radio activity is concentrated on the following fre-quencies:

VHF Band

UHF Band

Note: Remote control stations and mobile units operate at 5 MHz higher than theirassociated base stations and relay repeater units.

BAND ALLOCATION

To help decide which frequency ranges to scan, use the following listing of the typi-cal services that use the frequencies your scanner receives. These frequencies aresubject to change, and might vary from area to area. For a more complete listing,refer to the “Police Call Radio Guide including Fire and Emergency Services,” avail-able at your local RadioShack store.

Activities Frequencies (MHz)

2-Meter Amateur Band 144.000–148.000Government, Police, and Fire 153.785–155.980Emergency Services 158.730–159.460Railroad 160.000–161.900

Activities Frequencies (MHz)

70-Centimeter Amateur Band FM Repeaters

440.000–450.000

Land-Mobile “Paired” Frequencies 450.000–470.000Base Stations 451.025–454.950Mobile Units 456.025–459.950Repeater Units 460.025–464.975Control Stations 465.025–469.975

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Abbreviations Services

AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AircraftBIFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Boise (ID) Interagency Fire CacheBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BusinessCAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Civil Air PatrolCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Citizens BandCCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Common CarrierCSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional SystemsCTSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional/Trunked SystemsFIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire DepartmentHAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) RadioGOVT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal GovernmentGMR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile RadioGTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General TrunkedIND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Industrial Services

(Manufacturing, Construction, Farming, Forest Products)MAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Military Amateur RadioMARI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast

(Coast Guard, Marine Telephone, Shipboard Radio, Private Stations)

MARS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Military Affiliate Radio SystemMED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Emergency/Medical ServicesMIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. MilitaryMOV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motion Picture/Video IndustryNEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New Mobile NarrowNEWS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relay Press (Newspaper Reporters)OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil/Petroleum IndustryPOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Police DepartmentPUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Public Services

(Public Safety, Local Government, Forestry Conservation)PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public SafetyPTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private TrunkedROAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Road & Highway MaintenanceRTV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radio/TV Remote Broadcast PickupTAXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taxi ServicesTELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Mobile Telephone

(Aircraft, Radio Common Carrier, Landline Companies)TELC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cordless PhonesTELM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Telephone MaintenanceTOW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tow TrucksTRAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transportation Services

(Trucks, Tow Trucks, Buses, Railroad, Other)TSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trunked SystemsTVn. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FM-TV Audio BroadcastUSXX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Government ClassifiedUTIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power & Water UtilitiesWTHR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weather

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HIGH FREQUENCY (HF) — (3 MHz–30 MHz)

10-Meter Amateur Band (28.0–29.7 MHz)29.000–29.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

VERY HIGH FREQUENCY (VHF) — (30 MHz–300 MHz)

VHF Low Band (29.7–50 MHz—in 5 kHz steps)29.700–29.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND29.900–30.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL30.580–31.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, PUB32.000–32.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL33.020–33.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB34.010–34.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL35.020–35.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM36.000–36.230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL36.230–36.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup, GOVT, MIL37.020–37.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, IND38.000–39.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL39.020–39.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB40.000–42.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, MARI42.020–42.940 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL42.960–43.180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND43.220–43.680 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM, IND, PUB43.700–44.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRAN44.620–46.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB46.600–46.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, TELC47.020–47.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB47.420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Red Cross47.440–49.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, PUB49.610–49.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL, TELC

6-Meter Amateur Band (50–54 MHz)50.00–54.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

Aircraft Band (108–136 MHz)108.000–121.490 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR121.500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR Emergency121.510–136.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR

U.S. Government Band (137–144 MHz)137.000–144.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL

2-Meter Amateur Band (144–148 MHz)144.000–148.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

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VHF High Band (148–174 MHz)148.050–150.345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CAP, MAR, MIL150.775–150.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED150.815–150.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW, Oil Spill Cleanup150.995–151.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ROAD, POL151.490–151.955 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, BUS151.985 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED152.030–152.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB152.270–152.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, BUS152.510–152.840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB152.870–153.020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV153.035–153.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, UTIL153.740–154.445 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, FIRE154.490–154.570 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, BUS154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Oil Spill Cleanup154.600–154.625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS154.655–156.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED, ROAD, POL, PUB156.255–157.425 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI157.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED157.470–157.515 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TOW157.530–157.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI157.740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS157.770–158.100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB158.130–158.460 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, OIL, TELM, UTIL158.490–158.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB158.730–159.465 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB, ROAD159.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL159.495–161.565 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAN161.580–162.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI, RTV162.0125–162.35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX162.400–162.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WTHR162.5625–162.6375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX162.6625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED162.6875–163.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX163.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED163.275–166.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE166.275–169.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, BIFC169.445–169.505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT169.55–169.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX170.000–170.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC, GOVT, RTV, FIRE170.175–170.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT170.245–170.305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes170.350–170.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL170.425–170.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB170.4875–173.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, PUB, Wireless Mikes173.225–173.5375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MOV, NEWS, UTIL, MIL173.5625–173.5875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL Medical/Crash Crews173.60–173.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT

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FM-TV Audio Broadcast, VHF Wide Band (174-216 MHz)179.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV7185.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV8191.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV9197.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV10203.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV11209.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV12215.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV13

New Mobile Narrow Band (220-222 MHz)220.000–222.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NEW

1.3-Meter Amateur Band (222-225)220.000–225.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

Military Aircraft Band (237.9-287.8 MHz)237.900 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coast Guard Search and Rescue239.800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Weather241.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Army

243.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Emergency255.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Flight Service257.800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Civilian towers287.800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coast Guard Air/Sea Rescue

ULTRA HIGH FREQUENCY (UHF) — (300 MHz–3 GHz)

Military Aircraft Band (319.1-383.9 MHz)319.100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Traffic control321.000-336.600. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Force342.500-344.600. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Weather346.400-364.200. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Traffic Control381.800-383.900. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coast Guard

U. S. Government Band (406–420 MHz)406.125–419.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, USXX

70-Centimeter Amateur Band (420–450 MHz)420.000–450.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

Low Band (450–470 MHz)450.050–450.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV451.025–452.025 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL452.0375–453.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, TAXI, TRAN TOW, NEWS453.0125–454.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, OIL454.025–454.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB455.050–455.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV457.525–457.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS458.025–458.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED460.0125–460.6375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIRE, POL, PUB460.650–462.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

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462.1875–462.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND462.4625–462.525 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL462.550–462.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GMR, BUS462.9375–463.1875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED463.200–467.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS

FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz)(Channels 14 through 20 in 6 MHz steps)475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16511.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20Note: Some cities use the 470–512 MHz band for land/mobile service.

Conventional Systems Band – Locally Assigned851.0125–855.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSB

Conventional/Trunked Systems Band – Locally Assigned856.0125–860.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CTSB

Trunked Systems Band – Locally Assigned861.0125–865.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB

Public Safety Band – Locally Assigned866.0125–868.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSB

33-Centimeter Amateur Band (902–928 MHz)902.0000–928.0000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM

Private Trunked935.0125–939.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR

General Trunked940.0125–940.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GTR

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FREQUENCY CONVERSION

The tuning location of a station can be expressed in frequency (kHz or MHz) or inwavelength (meters). The following information can help you make the necessaryconversions.

1 MHz (million) = 1,000 kHz (thousand)

• To convert MHz to kHz, multiply the number of megahertz by 1,000:

9.62 (MHz) × 1000 = 9620 kHz

• To convert from kHz to MHz, divide the number of kilohertz by 1,000:

2780 (kHz) ÷ 1000 = 2.780 MHz

• To convert MHz to meters, divide 300 by the number of megahertz:

300 ÷ 7.1 MHz = 42.25 meters

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TROUBLESHOOTING

If your scanner is not working as it should, these suggestions might help you elimi-nate the problem. If the scanner still does not operate properly, take it to your localRadioShack store for assistance.

PROBLEM POSSIBLE CAUSE REMEDY

Scanner is on but will not scan.

SQUELCH is not correctly adjusted.

Adjust SQUELCH clock-wise.

Only one channel or no channels are stored.

Store frequencies into more than one channel.

Scanner is totally inopera-tive.

No power. Make sure the scanner is plugged into a working AC or DC outlet.

The AC or DC adapter is not connected.

Be sure the adapter’s barrel plug is fully inserted into the DC 12V jack.

The scanner must be reset. Reset the scanner (see “Resetting the Scanner” on Page 66).

Poor or no reception An antenna is not con-nected or connected incor-rectly.

Make sure an antenna is connected to the scanner.

Error appears. Programming error. Reprogram the frequency correctly, including the deci-mal point.

In the scan mode, the scan-ner locks on frequencies that have an unclear trans-mission.

Programmed frequencies are the same as “birdie” fre-quencies.

Avoid programming fre-quencies listed under “Birdie Frequencies” on Page 55 or only listen to them manually.

Scanner will not track a trunked system.

The transmission might not use a system that can be tracked by your scanner.

Scan another transmission.

The data frequency is miss-ing.

Find the data frequency (see “Programming Trunked Frequencies” on Page 32).

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Scanner will not track a trunked system (continued)

The system you are trying to track is a Type I System, and the scanner is set to scan Type II systems.

Set the scanner to receive Type I trunked frequencies. See “Scanning Type I and Hybrid Trunked Systems” on Page 40.

Scanner will not stop while scanning a scan list

The IDs you have stored are not active.

Scan another transmission.

Scanner will not acquire a data channel

Squelch is not correctly adjusted.

See “Setting Squelch for the Trunk Scanning Mode” on Page 31.

The frequency used for the data channel is missing.

Add the frequency used for the data channel to the fre-quency list. See “Program-ming Trunked Frequencies” on Page 32.

Missing replies to conversa-tions

The system you are trying to track is a Type I system, and the scanner is set to scan Type II systems.

Set the scanner to receive Type I trunked frequencies. See “Scanning Type I and Hybrid Trunked Systems” on Page 40.

The selected fleet map is incorrect.

Try another preset fleet map or program your own fleet map. See “Scanning Type I and Hybrid Trunked Sys-tems” on Page 40.

Not all of the trunk’s fre-quencies have been entered.

Enter all of the trunk’s fre-quencies.

Channel activity indicators are lighting but no sound is heard.

The transmission might be a private or telephone inter-connect call. The scanner does not scan these types of transmissions.

Scan for another transmis-sion.

The ID is locked out. Unlock the ID (see “Unlock-ing a Single ID” on Page 36 or “Unlocking All IDs” on Page 36).

PROBLEM POSSIBLE CAUSE REMEDY

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RESETTING THE SCANNER

You might need to reset the scannerif:

• the scanner’s display locks up.

• the scanner does not work prop-erly after you connect power.

• the scanner is dropped or sub-jected to a physical or electricalshock.

Caution: This procedure clears all theinformation you have programmedinto the scanner. Use this procedureonly when you are sure your scanneris not working properly.

To reset the scanner, turn it off. Then,while you hold down 2 and 9, turn onthe scanner. CLEAr appears forabout 5 seconds while the scanner re-sets.

Caution: Do not turn off the scannerwhile it is resetting.

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CARE AND MAINTENANCE

Your RadioShack PRO-2052 1000-Channel Dual Trunking TrunkTracker HomeScanner is an example of superior design and craftsmanship. The following sug-gestions will help you care for your scanner so you can enjoy it for years.

Keep the scanner dry. If it gets wet, wipe it dry immediately. Liquidsmight contain minerals that can corrode the electronic circuits.

Use and store the scanner only in normal temperature environments.Temperature extremes can shorten the life of electronic devices anddistort or melt plastic parts.

Keep the scanner away from dust and dirt, which can cause prematurewear of parts.

Handle the scanner gently and carefully. Dropping it can damage cir-cuit boards and cases and can cause the scanner to work improperly.

Wipe the scanner with a damp cloth occasionally to keep it lookingnew. Do not use harsh chemicals, cleaning solvents, or strong deter-gents to clean the scanner.

Modifying or tampering with the scanner’s internal components can cause a mal-function and might invalidate its warranty and void your FCC authorization to oper-ate it. If your scanner is not performing as it should, take it to your localRadioShack store for assistance.

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SPECIFICATIONS

Frequency Coverage (MHz):

10 Meter Amateur Radio ...................................... 29.000–29.6950 (in 5 kHz steps)VHF Lo ............................................................... 29.7000–49.9950 (in 5 kHz steps)6 Meter Amateur Radio ...................................... 50.0000–54.0000 (in 5 kHz steps)Aircraft ....................................................... 108.0000–136.9750 (in 12.5 kHz steps)Government ................................................... 137.0000–143.9950 (in 5 kHz steps)2 Meter Amateur Radio .................................... 144.000–147.9950 (in 5 kHz steps)VHF Hi ........................................................... 148.0000–174.0000 (in 5 kHz steps)VHF TV ........................................................... 179.7500-215.7500 (in 6MHz steps)1 Meter Amateur Radio ...................................... 216.000-224.995 (in 5 kHz steps)VHF Aircraft ................................................ 225.000-399.9875 (in 12.5 kHz steps)Amateur Radio/Government ..................... 400.0000–419.9875 (in 12.5 kHz steps)70-cm Amateur Radio ............................... 420.0000–449.9875 (in 12.5 kHz steps)UHF Standard ........................................... 450.0000–469.9875 (in 12.5 kHz steps)UHF “T” ..................................................... 470.0000–512.0000 (in 12.5 kHz steps)Public Service ........................................... 806.0000–823.9375 (in 12.5 kHz steps)Public Service/Trunking Repeater ............. 851.0000–868.9875 (in 12.5 kHz steps)Public Service ........................................... 896.1125–956.0000 (in 12.5 kHz steps)25-cm Amateur Radio ........................... 1240.0000-1300.0000 (in 12.5 kHz steps)

Channels of Operation .................... Any 1000 channels in any band combinations(50 channels × 20 banks), 50 search skip memories, and

20 service search skip memories

Sensitivity (S+N)/N=20 dB:29–54 MHz .............................................................................................. 0.5 µV108–136.975 MHz ................................................................................... 1.5 µV137–174 MHz .......................................................................................... 0.5 µV179.75-215.75 MHz ................................................................................. 3.0 µV216-224.995 MHz .................................................................................... 0.5 µV225-399.9875 MHz .................................................................................. 1.5 µV400–512 MHz .......................................................................................... 0.4 µV806–956 MHz .......................................................................................... 1.0 µV1240-1300 MHz ....................................................................................... 2.0 µV

Spurious Rejection (@40.85 MHz) ................................................................ 60 dB

Selectivity:±10 kHz ................................................................................................... –6 dB±15 kHz ................................................................................................. –50 dB

IF Rejection (@162.4 MHz) ........................................................................... 80 dB

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Search Speed:Normal ............................................................................. 100 Steps/Sec (Max)Hyper .......................................... 300 Steps/Sec (Max) (only 5 kHz step band)

Scan Speed ................................................................ 50 Channels/Sec. (Nominal)

Priority Sampling ..................................................................................... 2 Seconds

Delay Time ............................................................................................. 2 Seconds

IF Frequencies:1st IF ......................................... 29–310.9875 MHz: 380.6050–380.7000 MHz

311–512 MHz: 254.3125–254.4000 MHz 806–956 MHz: 380.7000–380.7875 MHz

1240–1300 MHz: 380.7000-380.7875 MHz2nd IF ............................................................... 179.75–215.75 MHz: 10.7 MHz

Other Bands 10.85 MHz3rd IF .................................................................................................... 450 kHz

Squelch Sensitivity:Threshold ............................................................................... Less than 0.6 µVTight ............................................................. VHF Lo, Hi, UHF (S + N)/N 25 dB

Aircraft (S + N)/N 15 dB

Antenna Impedance ................................................................................... 50 ohms

Audio Power .................................................................................. 1.1 W Maximum

Built-In Speaker .......................................................... 21/4 Inches (57 mm), 8 ohms

Operating Temperature ....................................................................–10 C to + 50 CPower Requirements:

AC Adapter ....................................................................................12 Volts DCDC Adapter ................................................................................... 12 Volts DC

Current Drain:At Squelched ..........................................................................................240 mAAt Full Output .........................................................................................440 mA

Dimensions (HWD) ........................................................... 23/4 × 81

/16 × 711

/16 Inches(70 × 205 × 195 mm)

Weight ........................................................................................................ 26.5 oz.(750 g)

Specifications are typical; individual units might vary. Specifications are subject tochange and improvement without notice.

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NOTES

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20-432.fm Friday, July 14, 2000 11:30 AM

RadioShackA Division of Tandy Corporation

Fort Worth, Texas 76102

UBZZ01307ZZ09A99 Printed in the Philippines

Limited One-Year WarrantyThis product is warranted by RadioShack against manufacturing defects in material and workman-ship under normal use for one (1) year from the date of purchase from RadioShack company-ownedstores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDINGTHOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITEDIN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINEDHEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RE-SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANYLIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, IN-CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSSOF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN-TAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THEPOSSIBILITY OF SUCH DAMAGES.Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-cidental or consequential damages, so the above limitations or exclusions may not apply to you.In the event of a product defect during the warranty period, take the product and the RadioShacksales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-less otherwise provided by law: (a) correct the defect by product repair without charge for parts andlabor; (b) replace the product with one of the same or similar design; or (c) refund the purchaseprice. All replaced parts and products, and products on which a refund is made, become the prop-erty of RadioShack. New or reconditioned parts and products may be used in the performance ofwarranty service. Repaired or replaced parts and products are warranted for the remainder of theoriginal warranty period. You will be charged for repair or replacement of the product made after theexpiration of the warranty period.This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation ormaintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairsother than those provided by a RadioShack Authorized Service Facility; (c) consumables such asfuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costsof product removal, installation, set-up service adjustment or reinstallation.This warranty gives you specific legal rights, and you may also have other rights which vary fromstate to state.

RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102

We Service What We Sell 04/99

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