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HC-1500AT

0

Instruction Manual

HF/50MHz Automatic Antenna Tuner

Model HC-1500AT

READY WARNING

SWR

1.5 2.0 3.0

HF AUTOMATIC ANTENNA TUNER HC-1500AT

SELECT

ENTRYFUNCTION

POWER

OFF

HC-1500AT

1

Thank you for purchasing Tokyo Hy-Power model HC-1500AT, automatic antenna tuner.HC-1500AT is a compact HF/50MHz band high power auto antenna tuner with a maximumpower handling capability of 1.5kW. The tuner fully intergrates with Tokyo Hy-Power Linearamps such as HL-1.5KFX, HL-2.5KFX, HL-2500FX etc.It is also designed to work with other linear amplifiers as well, due to the newly THP developedband decoding technology. It boasts of an extremely fast tuning speed of 1 sec. max. in mostcases. When the transmitter is keyed, the tuner detects the antenna impedance (resistanceand reactance) directly, and the two variable capacitors are auto-adjusted so that tunermatches the antenna impedance.

2. Features

1. Forward

• High speed and precision tuning due to the high resolution stepping motors driven by themicroprocessor: The typical tuning time is less than one second, with the exception on the

160m band. On this band, the typical tuning time is 3sec.

• Simple operation: Auto tunes even with ssb/voice as well as keyed codes.During the auto-tuning time period the linear amp is held at STBY (stand-by), and thenautomatically switches to OPER. (operate) as soon as the tuning is completed.

• Tuning position data is stored in the memory with respects to frequency, band segment andantenna port. As a result re-tuning is extremely fast, When tuning up anddown the bands.

• With the newly developed band decoder, HC-1500AT is compatible with frequency bandinformation sent from such radio’s as ICOM, YAESU and KENWOOD, and can follow theradio as you move within the band.Furthermore the tuner can select the operating band independently through the built-infrequency counter.

• The tuner is equipped with two data ports of IN and OUT for a series expandable serialinterface. With this feature, the band data from the transceiver can be transferred to thelinear amp by way of the tuner.

HC-1500AT

2

3. Cautions

Note the followings for the safety of the operator.

A If any smoke, odor, or fire is detected, take the following steps for safety.1 Cease the transmission.2 Turn off the power of linear amp and radio.3 Turn off the power of tuner.

B High RF VoltageA high RF Voltage is generated during the transmission period.· Never remove the top cover.· Never operate without connecting an antenna.· Never touch RF connectors.· Be careful of the tuner cabinet as it may bear RF voltage depending on the antenna typeconnected.

· Those operators with heart pacemakers must not approach the tuner.· Avoid the risk of RF burn from a high SWR antenna on its element length.· Never touch cooling fan inside as well as L, C components, as they generate much heatduring operation.

C Limited ApplicationThis tuner is designed for the use of the amateur radio station operated by qualifiedoperator. Application for other than designed purpose leads to the failure of the deviceand/or the severe damage to the surrounding devices. Never exceed the maximumhandling power of 1.5kW.

D SettingInternal parts such as tuning coils and motors are forced air cooled and need airventilations. Keep at least a few inches of space from the rear wall, and a space of rubberfeet height at the bottom. Keep out of direct sun light, in a clean dry environment.

E Power Derating for high SWR AntennaWhen the antenna has high SWR of 3 to 4, reduce RF output power by at least a half notto damage the tuning components.Also never attempt to tune to very high SWR antenna, even if the tuner happens to work,or the tuning relays and capacitors as well as coax cable will be severely heated anddamaged.

F Power ON SequenceIt is recommended to turn on the transceiver first, then the amplifier, and finally the autotuner.

G Power Off/ThruWhen the POWER switch is turned off, ANT1 port is the default bypass antenna port.

H Tube Linear AmpCombination with tube type linear makes plate tuning circuit and tuner network connectedin a cascade way. As they mutually affect each other, note the following tuning procedure.1 Tune the amp with 50Ω dummy load first. Then, tune the tuner with linear amp in

STBY (off) mode.2 Alternatively turn the tuner, first, with amplifier in STBY (off), and then tune the linear for

maximum power output.

HC-1500AT

3

4-1. Equipment Needed for an Operation

A. DC Power SupplyDC12V (11 – 14V), 2A (negative ground)

B. Coax CableRG8U or higher grade is recommended. RG8X and similar small diameter coax is notrecommended.

C. TransceiverHF/50MHz radio that delivers at least 50W of output power, that drivers the tuner directlywhen tuning. The radio with output power reduction feature is preferred when there is highreflected power.

D. Linear AmpThe Linear amp of 1 to 1.5kW output with ALC feedback is preferred. Avoid the one withover-shoot/ spiking.

E. AntennaAntenna should have power handling capacity of 1,500W or more, and relatively low SWR.Even if the high SWR is lowered with the tuner, it will make the coax cables heated, andcause interferences around the vicinity.

F. Band CableBand cables for the respective radios are available as optional parts for the smooth andcomfortable operation. Please note that full break-in CW is not available when the band datacable is not used.(See 11, Connection/ Operation. Page 14 – 19.)

G. ISO Screw BoltsThis tuner uses ISO std. screws.

HC-1500AT

4

4-2. Specifications

Model HC-1500AT Specifications

Parameter Description Remarks

Frequency Range 1.8-50 MHz, all WARC bands included

Output Impedance Range 12.5 – 200 Ω (SWR=4.0)(*16.6 – 150 Ω, SWR=3.0)

* Reduced range on 1.8,and 50 MHz.

Maximum-Handling Power 1.5 kW (P.E.P./CW), 1 kW on 50 MHz RTTY 1 kW recommended

Input Impedance 50 Ω

Tuning Power 10W min.

Tuning Time 1 sec. (typ.)

2.5 sec. (max.) Under typical worst SWRcondition on 1.8 MHz

DC-Power Voltage DC 12V – 14V(5 mm φ DC jack)

From external DC powersupply (Power supply notincluded.).

Current Drain 1.5 A max.

Quiescent Current 0.7 A

DC Power Polarity Negative ground

Display LCD Module Character display

Operating Temp. Range 0 deg. to +40 deg. C

VSWR (Max.) 1.5 (typ.) or lower After tuning

Circuit Type T-shaped circuit

Driving Motors Stepping Motors for Two Air Variable Capacitors 0.25 deg. resolution/step

L Changes Relays to short

Matching Algorithm Analog Control with MPU Phase and [Z] MagnitudeDetected

Tuning Memory 93 x 3 ch. max. For three ANT ports andrespective bands in total.

Dimension 200 x 140 x 300 mm (W x H x D) Approx. 8 x 5.6 x 12 inches

Weight Approx. 6.3 kg or 14.4 lbs.

Input Connector SO-239 (UHF)

Output Connectors Three SO -239’s

Cooling Partial air forced cooling fan

Accessories DC power cable with 5.5 mm dia. plug (4 feet)

Band control cable with DIN 7 pin plugs(THP interface cable)

To connect the THP amps.

ALC/PTT Out cable with RCA plugs To connect to amps.

Fuse DC 2A, 2 pcs.

HC-1500AT

5

READY WARNING

SWR

1.5 2.0


SELECT

ENTRYFUNCTION

POWER

OFF

5. Explanations of Front and Rear Panels

1 2 3 4

5 6 7 8

(1) POWERSwitch to turn power on and off.When turned off, the tuner is bypassed, RF is looped from the input through the output antenna ports.

(2) FUNCTIONFunction button to access the operation menu. Used to set the various parameters and to operatethe tuner in manual mode.

(3) ENTRYButton to select manual operation and its parameter settings.

(4) SELECTThe dial for selecting various parameters as well as changing tuning elements of the tuner.By pressing the dial knob, you can shift to other parameter settings.

(5) ReadyGreen lamp lights when tuning has successfully completed.

(6) WARNINGYellow lamp blinks when tuning capacitor positions enter a critical and/or dangerous region. (highamperage)

(7) SWRLED bar graph displays SWR status of the tuner, SWR of 1.0 to 3.0 is signed with 10 pcs of LEDlamps. SWR of 1 is shown, when the tuner has tuned properly.

(8) LCD (Display)Panel to display the various parameters of operation.

< FRONT PANEL >

HC-1500AT

6

< REAR PANEL >

ANT 3 ANT 2 ANT 1

CONTYAESU

KENWOOD

I N

TRX

OUT

CIVSTBY

I NOUTI NOUTDC12V

USB

1 2 3 4

5

6 7 8 9 10 1211 13 14 15

(1) ANT3 Antenna Connector 3 (SO-239)To be selected by Select rotary dial andEntry button.

(2) ANT2 Antenna Connector 2 (SO-239)To be selected by Select dial and Entry.

(3) ANT1 Antenna Connector 1 (SO-239)Tuner network is usually connected to thisconnector, if not selected in particular.

(4) TRX IN Connecter (SO-239)Connect a coax cable from ANT (antenna)connector of the linear amplifier.

(5) GNDGround terminal.

(6) USBSerial interface USB socket for the futurefirmware version up-grade.

(7) STBY-OUTRCA jack to connect PTT cable to SEND(or STBY, REMOTE) socket of the linear amp.

(8) STBY-IN

RCA jack to connect PTT cable form SEND(or TX GND, REMOTE, RELAY etc.) socketof transceiver.

(9) CIV-OUTOutput socket for ICOM radio’s CI-V interface.

(10) CIV-INInput socket for ICOM radio’s CI-V interface.

(11) KENWOOD-OUTOutput connector socket for KENWOODradio’s control interface.

(12) KENWOOD-INInput connector for KENWOOD radio’scontrol interface.

(13) YAESUSocket for YAESU radio ‘s band data cable.

(14) CONT (THP Interface)Socket for interface cable of Tokyo Hy-Power’s original tuner connection specs.Compatible with HL-1.5KFX, HL-2.5KFX andHL-2500FX.

HC-1500AT

7

6. Explanation of LCD Display

1.8MHz STBY NONC1=12 C2=19 ANT1

Typical Tuner Annunciations

LCD displays status and parameters of all tuner operations. Display capacity is 16 charactersby 2 rows.

Band

Shows the presentband selected.

ExampleKEN/CIV mode

1.8MHz24MHz etc.

THP/YAE/NONmode

1.82Mz24MHz etc.

FRQ mode1.82524.905 etc.

States

Shows the presentstatus of the tuner.

ExampleSTBY: Stand byTRCK: TrackingRADY: TunedTUNE: TuningWAIT: PresettingFANC: Set modeTXCW: Waiting for

carrierCUNT: CountingTHRU: ThroughFAIL: No carrierNOCT: Count failure

Interface

Shows the type ofband decode method.

ExampleNON: Manual band

selectCIV: ICOMCI-VYAE: YAESUKEN: KENWOODTHP: THPFRQ: Freq. Count

method

C1 Position C2 Position AntennaShows selectedantenna typeunder tunernetwork ON.and/or OFF(through).

ExampleC1=00 – 99

ExampleC1=00 – 99

ExampleNetwork ONANT1ANT2ANT3

Network OFF(through)THU1 (to ANT 1)THU2 (to ANT 2)THU3 (to ANT 3)

Example ofLCD Sign

TOKYO HY-POWERHC-1500AT Verx.xx

OtherAnnunciations

1.82MzC1=12 C2

Pointer

Appears at the top ofcorrespondingparameter.

Initial message

TUNE ERROR!!Push FUNC _restat

Error message

Pointer waitingfor freq. bandchangecommand

HC-1500AT

8

7-1. Special Notes

B. Antenna Setting

Any antenna port can be programmed for a particular band.

Once programmed, the data remains in memory until it is re-programmed.

C. Band Data

As a means of band data transfer, following interfaces are available for HC-1500AT.

·CIV: ICOM’s CI-V interface. As 1 KHz order data is carried, band data is transferredinstantaneously making quick QSY’s possible

·KEN: KENWOOD’s interface of EIA-232C serial. Also handles detailed data.

·YAE: YAESU’s 4 bit band data. Since only the band data is carried it needs a supplementaryfreq. data for low bands.

·THP: The mode to connect to TUNER terminal of THP linear amps. (PWM hand-shake.)

·FRQ: Frequency measuring mode through the built-in frequency counter. Needs one push ofbutton to start up.

·NON: NON interface. Completely manual setting mode.

A. For Amateur Service

HC-1500 is strictly for amateur radio use only.

Operation outside the amateur bands operation is not recommended and couldwill cause the tuner to malfunction.

Please read following notes before you power up the tuner.

HC-1500AT

9

D. Recommended Interface

Linear

TRXHL-2500FX HL-2.5KFX HL-1.5KFX Others

ICOM · From x-ceiver to HC-1500AT, through CI-V,from HC-1500AT to linear, through CI-V.

(See 16 page.)

· From x-ceiver to HC-1500AT through CI-V.Linear is manually set.

YAESU · From x-ceiver to linear, through YAE, fromlinear to HC-1500AT, through THP/(TUNER)

(See 18 page)

· From x-ceiver to HC-1500AT through YAE.Linear is manually set.

KENWOOD · From x-ceiver to HC-1500AT, through KEN,from HC-1500AT to linear, through KEN.

(See 19 page)

· From x-ceiver to HC-1500AT through KEN.Linear is manually set.

ELECTRAFT

K3

· From x-ceiver to linear, through ELC, fromlinear to HC-1500AT, through THP.

· From x-ceiver to HC-1500AT through YAE.Linear is manually set.

Others Both linear andHC-1500ATthrough Freq.Count method

(See 15 page)

Linear to be manually set.

HC-1500AT per Freq.Count method

(See 15 page)

There are various interface combinations for the transceiver and linear amp that can beconnected to HC-1500AT. The following are typical combinations.

(YAE: YAESU interface, KEN: KENWOOD interface, THP: Tokyo Hy-Power interface)

HC-1500AT

10

7-2. Setting and Cooling Fan Air Flow

Air flowDirection

READY WARNING

SW R

1.52.0


SELECT

ENTRYFUNCTION

POWER

OFF

FANSide view

This tuner is cooled with a forced air cooling fan. Never block the vent hole of the rearpanel. Allow two inches rear clearance. Chassis bottom must be above and free fromdesk by rubber feet height.

Fan Start Condition

Air Flow

Cooling fan is thermally controlled and turns on when the ambient temperature rises to30 ˚C. At temperature below 30C the fan is not operational.

HC-1500AT

11

8. DC Power Supply

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOOD

I N

TRX

OUTCIV

STBY

I NOUTI NOUT

DC12V

External DC power supply of DC 12V, is required.

Connect supplied DC power cord to “DC 12V” socket at the rear panel of the tuner.

Supplied DC cord

12V1.5A

+

-

+

--

1

2

3

THP HL-2500FX has DC power outlet (12V, 2A) at the rear panel.

You may connect tuner’s DC power cord to this socket of 12V/2A.

SMR-03V DC Plug

HL2500FX DC OUT(12V/2A)

To DC12V

Note

White lead of included DC cord is for positive.

HC-1500AT

12

9. Function Menu List

To make a band change, antenna port selection, interfacesetting etc. you can set the parameters by pressing

(1) FUNC button, (2) rotating the SELECT dial, andpressing (3) ENTRY button.

CAUTION:! Never transmit while setting the following functions.

1.8MHz FUNC NONC1=12 C2=19 ANT1


1.8MHz FUNC NONC1 12 C2=19 ANT1


1.8MHz STBY NONC1=12 C2=19 ANT1

1.8MHz FUNC NONC1=12 C2 19 ANT1

FUNCTION

SELECT

FUNCTION

FUNCTION

FUNCTION

FUNCTION

SELECT

ENTRY

ENTRY

SELECT Interface SettingNON: Manual Band ChangeCIV: ICOM CI-VYAE: YAESU Band DataKEN: KENWOOD BandDataTHP: THP Original InterfaceFRQ: Freq. Count Method

Antenna/Thru SelectANT 1: Network ON, to ANT 1ANT 2: Network ON, to ANT 2ANT 3: Network ON, to ANT 3THU 1: Network OFF, to ANT 1THU 2: Network OFF, to ANT 2THU 3: Network OFF, to ANT 3

BandSelect

1.80Mz1.82Mz

:50MHz

ENTRY

SELECT

ENTRY

* Band Selectappears

onlyfor YAESU,and THPinterface.

BandChangeFunction

AntennaSelect

Function

ManualTuning

Function

InterfaceSetting

Function

ReadyMode

Manual Tuning FunctionPressing ENTRY, select C1–> C2 (–> C1) respectively.Tuning SELECT, vary capacitor’s value.Pressing Function, shift to other functions.

SELECT

READY WARNING

SW

R

1

.

5

2

.

0


SELECT

ENTRYFUNCTION

POWER

OFF

1

2

3Function Operation List

HC-1500AT

13

10. Flow of Tuning Sequence

Auto tuning is completed after completing the following four steps of the tuning operation. Thesesteps are common for all the operating modes.

14MHz WAIT NONC1=12 C2=19 ANT1

READY WARNING

Fast Blink

14MHz STBY NONC1=12 C2=19 ANT1

READY WARNING

Slow Blink

14MHz TUNE NONC1=12 C2=19 ANT1

READY WARNING

Slow Blink

14MHz RADY NONC1=12 C2=19 ANT1

READY WARNING

Lights


READY WARNING

Lights

Presetting

Stand-by

Tuning start

Tuning Finish

Linear Ready

When band (or freq.) is changed,variable capacitors will shift tobest pre-set positions.

It takes a few seconds.

X-ceiver RX (TX inhibit)

Linear Thru (TX inhibit)

Pre-set finished, and ready forauto tuning to start.

X-ceiver RX (TX possible)

Linear Thru

Receiving the carrier from the x-ceiver, auto tuning starts.

Tuning finishes in a few seconds.

*For the frequency counter mode,it is required to start up bypressing ENTER button.

X-ceiver TX possible

Linear Thru

When auto tuning finishes,READY lamp lights, and tuning iscompleted.


Linear Thru

RX

Thru

TX

TX

RX

AmpON

Returning to receive state once,and if the x-ceiver is keyed, linearwill be ready to work.


Linear TX possible

TRX Linear

Transmit

Back to Receive Once

HC-1500AT

14

FUSE

FUSE

ANTTRX

SENDAC IN

GND

11-1. Setting / Manual Band / ANT Port Selection

Connection

ANT

RELAY

X-Ceiver

Coax Cable

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOODI N

TRX

OUTCIVSTBY

I NOUTI NOUTDC12V

HC-1500AT

RCA Plug Cable

Coax Cable

This operation method is used if the operator wants to manually select the band and ANT port.

Linear HC-1500AT

ANT1 TRX

STBYOUT IN DC IN

DC Power Supply

+

Setting of HC-1500AT

Setting ofLinear

None

Setting of Transceiver

None

Interface = NON

Setting Sequence

1.82Mz STBY NONC1=12 C2=19 ANT1

14MHz FUNC NONC1=12 C2=19 ANT1

(1) Band Set






Set with FUNCTIONbutton and SELECTdial.

(2) Ant. Select

(3) Return to Ready Mode

(4) Receiving the carrier from the x-ceiver, tuning starts.

(5) Finishes in a few seconds.

(6) Return to receive state, and the linear is no longerbypassed.

Antenna should beselected for eachband.

WAIT sign may takea few seconds.

It may take a fewseconds to completethe tuning.

Linear is stillbypassed at thisstage.

To Antenna

HC-1500AT

15

11-2. Setting / FRQ (Freq. Count Method)

Connection

Auto band change is accomplished through the built-in frequency counter without using the band datacables.


Setting of Linear

None


None

Interface = FRQ

Setting Sequence

1.822 STBY FRQC1=12 C2=19 ANT1

1.822 FUNC FRQC1=12 C2=19 ANT1

(1) Antenna Select


Antenna portshould beselected foreach band.

TXCW isdisplayed on theLCD, and waitsfor RF carrierfrom radio

1.822 TXCW FRQC1=12 C2=19 ANT1

EnF

14.20 CONT FRQC1=12 C2=19 ANT1

14.20 WAIT FRQC1=12 C2=19 ANT1

14.20 TUNE FRQC1=12 C2=19 ANT1

14.20 RADY FRQC1=12 C2=19 ANT1

Detects freq ofreceived carrier.

Presets thenetwork with therecognizedfrequency.

Auto tuningcompleted.

It can take up to6 sec. max.

CAUTION

Freq. counter will not self-start.

Initiate the frequency counter bytransmitting when your operating band haschanged.

Time out

Transmit the carrier within five secondsafter the ENTRY button is pressed.

Five watts minimum of RF power isrequired.

Small PWR levels will lead to a Freq.counting error.

FUSE

FUSE

ANTTRX

SENDAC IN

GNDANT

RELAY

X-Ceiver

Coax Cable

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOODI N

TRX

OUTCIVSTBY

I NOUTI NOUTDC12V

HC-1500AT

RCA Plug Cable

Coax Cable

HC-1500AT Power Cord

Linear HC-1500AT

ANT1 TRX

STBYOUT IN DC IN

DCRS.

+

RCA Plug Cable

(2) Return to Ready Mode

(3) Initiate the counter with ENTRY button

(4) Transmit the carrier and initiate the tuning.

(5) Return to receive state once, and the linear is no longerbypassed.

To Antenna

HC-1500AT

16

Following is a connection example using ICOM CI-V. If the linear is other than THP’s, linear band settingcontrols must be manually set.


Setting of Linear

CI-V combination


Interface = CIV

Setting Sequence

1.82Mz STBY CIVC1=12 C2=19 ANT1


(1) Antenna Select


14MHz STBY NON

C1=51 C2=55 ANT1




FUSE

FUSE

ANT B ANT A

INPUT

ALC ADJALC

SEND

TUNER

SELECT

AC IN

FUSE

FUSE

REMOTE

DC OUT12V1A

CONT

SERIAL

USB

GND

AC IN

HL-2500FX

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOOD

I N

TRX

OUT

CIVSTBY

I NOUTI NOUT DC12V

To Antenna

HC-1500AT

Coax Cable

CI-V BAUD RATE: 9600(bps)CI-V ADDRESS: 5chCI-V Transceive: ONCI-V with IC-731: OFF* Refer to ICOM manual for

details.

ANTALC

SEND

REMOTE

To ICOM

ICOM Cable

RCA Plug Cable

CI-V Cable

RCA Plug Cable

11-3. Setting / ICOM CI-V

(2) Return to STBY Mode

(3) Transmit the carrier and initiate the tuning.

(4) Tuning will be finished in a few seconds.


“WAIT” may takeapprox. 3 seconds.

It may take approx.3 seconds beforetuning is completed.


Connection Example with HL-2500FX HC-1500AT Power Cord

HC-1500AT

17

FUSE

FUSE

ANT B ANT A

INPUT

ALC ADJALC

SEND

TUNER

SELECT

AC IN

FUSE

FUSE

REMOTE

DC OUT12V1A

CONT

SERIAL

USB

GND

AC IN

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOOD

I N

TRX

OUT

CIVSTBY

I NOUTI NOUT DC12V

HC-1500AT

AC IN

HL-2500FXTo Antenna

Connection

For YAESU x-ceiver and using a THP HL-2500, HL-2.5KFX, or HL-1,5KFX amplifier, it is recommended toconnect the x-ceiver and linear with a YAESU band cable. Also connect the cable between the amplifier andHC-1500AT using the Tokyo Hy-Power tuner interface cable.

Setting Sequence


(1) Set the Band (for 1.8 and 35MHz)






Set the band withFUNCTION buttonand SELECT dial.


Setting of Linear

YAESU mode


None

Interface = YAE


Note

For 1.8 and 3.5MHz band only, please set theband minutely when the radio is YAESU.

Bands are divided into several segments as follows.

Manually select the nearest channel to your actualoperating frequency.

1.8MHz

1.80Mz·1.82Mz·1.85Mz·1.87Mz·1.90Mz·1.92Mz·1.95Mz·1.97Mz

3.5MHz

3.5MHz·3.6MHz·3.7MHz·3.8MHz·3.84Mz·3.94Mz

BAND DATA

TX-GND

ALC

ANT

To YAESU X-ceiver

RCA Plug Cable

YAESU Band Cable

RCA Plug Cable

Coax CableHC-1500AT DC Power Cord

11-4. Setting / Tokyo Hy-Power Interface

(2) Antenna Select

(3) Return to STBY mode

(4) Transmit the carrier and imitate the tuning.

(5) Tuning will be finish in a few seconds.




It may take approx. 3seconds beforetuning is completed.


THP tuner cable

HC-1500AT

18

AC IN

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOOD

I N

TRX

OUT

CIVSTBY

I NOUTI NOUT

DC12V

HC-1500AT

When the x-ceiver is YAESU, and linear is other than a THP amplifier, it is recommended to connectthe x-ceiver and HC-1500AT with the YAESU band data cable, then set the amplifier parametersmanually..

FUSE

FUSE

ANTTRX

SEND

AC IN

GND

To Antenna

HC-1500AT

RCA Plug Cable

Coax Cable

DC Power Cord

Linear

Connection

ANT

BAND DATA

TX-GND

Setting Sequence


(1) Set the Band (minutely for 1.8 and 35MHz)


(2) Antenna Select

(3) Return to STBY mode

(4) Transmit the carrier and imitate the tuning.







Set the band withFUNCTION buttonand SELECT dial.






Setting of Linear

YAESU mode


None

Interface = YAE


Note

For 1.8 and 3.5MHz band only, please set thecorrect band segment when using YAESUradios.

Bands are divided into several segments as follows.

Manually select the nearest band segment to youractual operating frequency.

1.8MHz

1.80Mz·1.82Mz·1.85Mz·1.87Mz·1.90Mz·1.92Mz·1.95Mz·1.97Mz

3.5MHz

3.5MHz·3.6MHz·3.7MHz·3.8MHz·3.84Mz·3.94Mz

To YAESU X-ceiver

11-5. Setting / YAESU with OtherLinear

HC-1500AT

19

AC IN

ANT 3 ANT 2 ANT 1

CONTYAESUKENWOOD

I N

TRX

OUT

CIVSTBY

I NOUTI NOUT DC12V

HC-1500AT

Connection Example with HL-2500FX

Combination with COM port of KENWOOD transceiver.

If linear amp is other than THP’s, the linear should be set manually.


Setting of Linear

KENWOOD mode


Interface = KEN

Setting Sequence

1.82Mz STBY KENC1=12 C2=19 ANT1


(1) Antenna Select

(2) Return to STBY Mode

(3)Transmit the carrier and initiate the tuning.











FUSE

FUSE

ANT B ANT A

INPUT

ALC ADJALCSEND

TUNER

SELECT

AC IN

FUSE

FUSE

REMOTE

DC OUT12V1A

CONT

SERIAL

USB

GND

ANT A

INPUT

HL-2500FXTo Antenna

HC-1500AT

RCA Plug Cable

RCA Plug Cable

Coax Cable

DC power Cord

CONT

DC IN

SEND

Communication speed: 9600 bpsStop bit: 1 bit* For details, refer toKENWOOD manual.

ALC

ANT

SEND

COM

To KENWOOD x-ceiver

11-6. Setting / KENWOOD

HC-1500AT

20

12. Useful Function

READY WARNING

S

W

R

1

.

5

2

.

0


SELECT

ENTRYFUNCTION

POWER

OFF

Re-tuning

While transmitting, or tuner is in operation,you can decrease the increased reflectedpower by pressing ENTRY button.

SWR Bar-graph

With the LED bar-graph, you canrecognize the tuning status visually. Graphshows a SWR at transceiver (or linear)output point, and not a reflected power.

When auto tuning is completed, all LEDswill go off. At time possibly one green LEDcould remain lighted.

Note

When tuning in frequency counter mode, re-tuning may take slightly longer time. For thefrequency counter has to acquire theoperating frequency.

THRU

1.8MHz FUNC NONC1=12 C2=19 TRU1You can bypass the tuner while still

connected to the linear (or x-ceiver) andthe antenna.

You need to select and set either TRU1,TRU2, or TRU3, predicated on whichantenna port you have selected for thatparticular band.

It is a useful function when testing linearwith dummy load, or when TX/RXfrequency is much different each other(split QSO).

This bypass (Thru) setting is required foreach band respectively.

1

2

3

1.8MHz THRU NONC1=12 C2=19 TRU1

< Sign after TRU1 selected >

< Setting >

HC-1500AT

21

13. About Memory

Programmed data parameters are stored in the non-volatile IC memory.

With the stored data, capacitors (C1 and C2) are preset accordingly, next time the tuner is operated.

Operating Status Memory (RESUME Memory)

Memory and Status is stored when the tuner powered is off, and recalledagain when power is turned back on.

They are, Band (Freq.), Tuning Position (C1, C2), Antenna Port, and

, Interface Setting.

* If the transceiver setting has been changed after the power is turned on,

the tuner settings will be changed accordingly.

Setting Status Memory

Various parameters which are selected for each band are memorized for that bandrespectively

Memory Contents

Antenna (ANT1-TRU3) selected for each band.

Default

Each band defaults to ANT1 port

Tuning Memory

Recall

Recalled every time band is changed.

Note

Since only one antenna is memorized per band, it is impossible to select more than oneAnt port per band.

A function to memorize the last tuning positions (C1, C2).

Memory Contents

C1, C2 positions for each frequency and Antenna 1 thru 3.Frequency divisions.CI-V, KEN, FRQ modes: 93 divisions x3NON,YAE, THP modes: 22divisions x3

Default

50 ohm load tuning position (c1,C2) for ANT1 thru ANT3. (See page 26)

Recall

Recalled as frequency and or antenna is changed.

Note

When the transceiver is changed from ICOM to YAESU, YAESU memory data is recalledrather than ICOM’s memory.

HC-1500AT

22

14. Warning and Protection

Protection Circuit

If protection trips, release the PTT switch to stop transmission.

High SWR Protection

Tripping Condition

While transmitting, SWR has suddenly jumped to over 2.0.

Reaction

Linear is bypassed and is no longer active.

WARNING HI SWR!Push FUNC _restat

Blinks Lights

To Reset

Press FUNCTION button.Reset

FUNCTION

Tuning Error

Tripping Condition

Auto tuning fails to complete.

Reaction

Linear is bypassed and is no longer active.

TUNE ERROR!!Push FUNC _restat

Blinks Blinks

To Reset

Press FUNCTION button.Reset

FUNCTION

Warning Sign

This tuner can tune to relatively high SWR antenna successfully.

In such a case, reduction of running power is recommended to approx. 500W, due tothe excessive current applied to the internal components.

Warning Condition

C1, C2 positions are tuned to high SWR load.

Reaction

Warning only.

Lights Lights

To Reset

Correct the antenna SWR and attempt to retune.

FUNCTION


Sign

Sign

Sign

HC-1500AT

23

15. About Error Message

Error message

Error message is displayed when there is an internal failure.

Tracking Error

Condition

When there is no response from the linearwhen operating under THP interface mode.

Operation

Operation not feasible thereafter.

TRACKING ERROR!!Pouwer on linear

Blinks Blinks

To reset

Turn power of linear on.

FUNCTION

Off-set Error

Condition

Off-set of internal sensor circuit has been shifted.

Operation

Operation not feasible thereafter.

OFFSET ERROR!!PH=xxx MAG=yyy

Blinks Blinks

To reset

Contact the service center.

FUNCTION

Pre-set Error

Condition

Capacitors (C1, C2) did not shift to properpositions within five seconds.

PRESET ERROR!!Push FUNC _restat

Blinks Blinks

FUNCTION

Operation

With linear combination off, system becomesbarefoot mode.

To Reset

Press FUNCTION button.

If the memory is the cause of the failure, tunermust be reset to factory defaults.

If after reset the same error is displayed, motorcomponents may be the cause. Refer unit to theService Center.

Reset

HC-1500AT

24

16-1. Explanation of Connectors

LINEAR IN-OUT

Circuitry Explanation

PTT(SEND /RECEIVE switch) from the x-ceiver is, via HC-1500AT, connected toSEND(PTT, or STBY) terminal of linear amp.

When the tuner is tuning, or in an error, thiscontact is made open, and linear becomesstand-by state (or barefoot).

(Connector: RCA jack)

LINEAR IN

LINEAR OUT

X-CEIVER T/ROUT

LINEAR SEND

CI-V IN-OUT

IN

OUT

Explanation

ICOM Interface of CI-V.

IN and OUT are connected together atinside of the tuner. The tuner uses datasignal by way of TX/RX buffer.

When the power is turned off, PTT relayfunction of IN-OUT is still effective.

(Connection: 3.5mm RCA jack)

TD

RD

KENWOOD IN-OUT

9

1

2

3

4

5

6

7

8

9

1

2

3

4

5

6

7

8

RX

TX

IN

OUT

2 RD3 TD7 RTS8 CTS5 SG

Explanation

KENWOOD interface is a serial type interface,and basic spec is 1 to 1. Internal circuit is asshown at left, and has a PTT relay function.

When power is turned off, the PTT relayfunction is still effective.

Connection IN: D-sub 9 pin (male)

Connection OUT: D-sub 9 pin (female)

Circuitry

Circuitry

HC-1500AT

25

CONT


1

2

3

4

5

6

7

8

+5VOUT

GND

EVENT

FREQ

1

2

3

4

5

6

7

8

CONT is for Tokyo Hy-Power’s tunerconnection interface.

EVENT pin handles an inquiry signal.When EVENT is LOW, frequency informationis returned at FREQ pin.

Frequency information is a rectangularwaveform of one thousandth of actualfrequency.

TTL Level: Low, Active

Connection: DIN 7 pin

YAESU


GND

DATA A

DATA B

DATA C

DATA D

For YAESU’ BAND DATA connection.

Data pins (A – D) are pulled up to + 5V through10 KΩ.

Connector is DIN 8 pin, and compatible with FT-1000 MP, FT-2000D, FTDX-9000 and so forth.

DC IN


+12V

GND

Input jack of DC power.

Center positive and, 12V (11 – 14V), 1.5Arequired.

Remarks

+ White lead of included DCcord is for positive.

16-2. Explanation of Connectors

HC-1500AT

26

Circuitry

C1 C2

L

Tuning Range

Network circuitry of HC-1500AT is a T-shapedmatching network.

Although T-shape can match relatively wideimpedance range of the load, it creates anextremely high RF voltage and current, if L andC values are not appropriate.

HC-1500AT uses proper L and C values only,for each band.

17. Network and Pre-set Positions

Remarks

C1/C2 ranges and matching positions for 50Ω

Freq.

V. Cap 1 V. Cap 2

Min MaxTuning

Position / 50Ω Min MaxTuning

Position / 50Ω

1.85MHz 0 99 46 0 99 43

3.8MHz 0 99 46 0 99 41

7.1MHz 28 99 57 28 99 56

10.1MHz 17 65 36 17 65 33

14.2MHz 10 40 23 10 40 20

18.1MHz 6 33 18 6 33 16

21.2MHz 4 29 16 4 29 13

24.9MHz 0 19 11 0 19 10

28.5MHz 0 24 11 0 24 9

50.5MHz 0 52 21 0 52 14

Above is a typical frequency of each band. Actually the band is divided minutely and respectivepositioning data is stored in the memory.

* These positions are typical factory defaults.

HC-1500AT

27

18-1 Maintenance / All Reset

FACTORY RESET

READY WARNING

SWR

1.52.0


SELECT

ENTRYFUNCTION

POWER

OFF

While pressing FUNCTION, turn POWER on.

ALL MEMORY RESETPUSH ENTRY

EnF

ALL MEMORY RESETDONE!!!

EnF

If nothing,done.

Press ENTRY.

All reset finished.

EnF

1.82Mz STBY KENC1=12 C2=19 ANT1

STBY mode

(To wait for tuning command)

All tuning data are stored in the IC memory. However, for some reason, there is a chance that databecame corrupted. In such a case, memory can be re-written to default condition at time of factoryshipment. This is called “All Reset” and operation procedure is as follows.

(1) At first, turn the power off.

(2) While pressing FUNCTION button,

turn power on again.

(3) Reset appears in display.

(4) If ENTRY button is pressed, within

five seconds, factory reset will initiate.

(5) If no action is made within five seconds,

LCD will change to STBY mode (to wait

for operation command).

Steps

Remarks

When all reset is made,(factory reset)

Antenna: ANT 1 for every band.Interface: NONPre-set Data: For 50Ω load,

per each band.

HC-1500AT

28

READYWARNING

SWR

1.52.0

HFAUTOMATICANTENNATUNERHC-1500AT

SELECT

ENTRY FUNCTION

POWER

OFF

! CAUTION!

Be sure to turn Power off, before checking insideof chassis.

Turn off the power, and remove thebottom plate from the chassis.

(ISO 3mm bind 6mm length x 10)

PCSE1903

F101DAITOLM-20(2A)

Pull to remove from the socket,and replace with includedspare fuse.

Bottom

18-2. Fuse Replacement

Fuse for DC power line is mounted on printed circuit board PCSE 1903. It is a 2A, LM-20by DAITO, yellow mini-fuse.

HC-1500AT

29

Symptom Cause Remedy

Power not turn on. DC power not connected Connect securely

DC power connection (plug)center pin failure.

Correct the plug.

Fuse blown Replace a fuse.

Power turns on.

ERROR signed, no further move.

OFFSET ERROR Alignment failure.

PRESET ERROR Try All-Reset (back todefault). Or ask for repair.

Band notchange.

Freq. countmode

RX BAND does not change atRX state.

Normal

TX

Drive power insufficient(when on SSB)

Drive power insufficient

Try CW mode.

Increase drive power toapprox. 50W.

THP interface Drive power not powered on. Power linear on.

ICOM CI-V mode CI-V cable error / failure Connect securely.

X-ceiver mis-set Correct address / speed.

YAESU mode BAND cable error / failure Check and connectsecurely.

KENWOOD mode COM cable error / failure Connect securely.

X-ceiver mis-set Check speed, bit etc.

No tuning No tune or low band With THP/YAESU modes,freq. setting on low bandimproper. Ant. Element tooshort.

Correct freq. segment andre-try. Correct ant. length.

No tune or certain band. Ant. setting error.

Ant. SWR too high.

Set again.

Adjust ant. resonance.

No tune or all bands. Stays on FUNC (setting)mode.

Ant. port selection improper.

Press ENTRY orFUNCTION to return toSTBY mode.

Select to set properly.

Ant. not connected. Connect ant. securely.

X-ceiver on SPLIT mode. Release the SPILIT.

19. Troubleshooting

Following are not necessarily failures. Refer to the following table for remedy. Otherwise pleasecontact the factory or service center.

HC-1500AT

30

Tokyo Hy-Power Labs., Inc.[Head Office]1-1 Hatanaka 3-chome, Niiza, Saitama, 352-0012 JAPANPhone : +81-48-481-1211 FAX : +81-48-478-7453

www.thp.co.jp, www.tokyohypower.com (USA)

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