Medium Power UHF B4-5 - VHF B3 - VHF B1

Digital and Analog TV Transmitters

www.eurotel.it

Air-Cooled ETL SeriesNew Technologies and innovative equipment manufacturing

Air-Cooled ETL SeriesNew Technologies and innovative equipment manufacturing

The EuroTel Air-Cooled UHF solid-state transmitter series has been designedfor digital TV standards as well as for analog TV standards. High power density,excellent transmission quality and superb reliability are the main features ofEuroTel Air-Cooled series. ETL3100RT exciter technologies provides today’s broadcaster unmatchedperformance, reliability and quality. The EuroTel Air-Cooled UHF transmitter is asingle transmitter platform capable of DVB-T/H, DVB-T2, ATSC, ISDB-T / ISDB-Tb, digital standards and analog standards.

For pre-filter power output requirements up to 5 kW COFDM, and 12 kW analog,the EuroTel transmitter is capable of serving broadcasters needs for efficient,easy to maintain transmitter systems. New LDMOS device technology deliversa high increase in power density, ensuring high output power and loweroperating costs.

Features

• High efficiency due to design technology and finalamplifiers voltage supply proportional to RF output power.

• Air-cooled system• Rugged, reliable and highly redundant design• Multistandard TV exciter for digital and analog

transmission, switching from analog to digital and backwith a simple command

• Fully broadband power amplifier modules

• Easy replacement of RF amplifier modules duringoperation for simplified maintenance

• Built-in mains isolation transformer, high insensitivity to ACmains interruptions

• Modular central control system for straightforwardmonitoring and in-depth diagnostics

• Web, SNMP remote control, and parallel commandsremote control interface

Exhaust fan

Exciter modules

Power Amplifiers

Mains isolationtransformers

Product details

High Efficiency via EuroTel TechnologyThe EuroTel Air-Cooled Medium power series offers highefficiency due to design technology and power voltageregulation circuit. This regulation mechanism in amplifiermodules yields a major increase in efficiency. The supplyvoltage for the power transistors is adjusted as a function ofthe output power and frequency significantly improvingefficiency.New high gain, high ruggedness LDMOS device technologydelivers a high increase in power density, ensuring highoutput power and lower operating costs.

Enhanced RedundancyThe EuroTel transmitter supports a range of backup optionssimplifying on-air servicing and eliminating costlyinterruptions. In dual-drive systems, the integrated controlsystem monitors exciters and switches control of RF feed.High redundant design in amplifier modules also makes theEuroTel Air-Cooled series a very rugged, reliable transmittersfamily.

Maximized coverage with Multistandard ETL3100RT ExciterThe EuroTel multistandard exciter performs full signalprocessing from the video/audio input signal (analog TV) orthe transport stream (digital TV) to the standard-conformingRF output signal. The ETL3100RT EuroTel exciter isextremely versatile and can handle the DVB-T2, DVB-T,ISDB-T / ISDB-Tb, ATSC and DVB-H digital as well asanalog standards.A GPS receiver for time and frequency references is alsoavailable.

Monitoring, Web interface and remote controlEach power amplifier module has dedicated control andmonitoring to support on/off functionality and alarms forreflected power, temperature and current over-loads.The transmitter control unit handle both internal and externalcommunications and provides all control functions.All transmitter, cooling system, exciters and amplifiersparameters required for diagnostics can be retrieved locallyas well as remotely from anywhere in the world via astandard (IP) protocol and standard software (web browser,SNMP). This allows to accurately evaluate the transmitterstatus of unattended stations.

www.eurotel.it

Specifications

Specifications are subject to change without notice.

PRIMARY POWER

AC LINE VARIATION

MAX INSTALLATION ALTITUDE

OPERATING TEMPERATURE RANGE

PERMISSIBLE RELATIVE HUMIDITY

COOLING METHOD

3-phase 50/60 Hz, 415/400/380/220V

single-phase 50/60 Hz, 240/230/208/127V

± 15%

2000 m above sea level (>2000 m on request)

-5 °C to +45 °C

95%, non-condensing

Air

GENERAL OUTPUT PARAMETERSOUTPUT FREQUENCY

RANGE

OUTPUT IMPEDANCE

PERMISSIBLE VSWR

IN-BAND INTERMODULATION

PRODUCTS

SPURIOUS SUPPRESSION

HARMONIC SUPPRESSION

FREQUENCY

STABILITY

TUNING RESOLUTION

BANDS IV-V: 470-860 MHz

BAND III: 174-250 MHz

BAND I: 47-68 MHz

50 Ω, unbalanced

< 1.5

< 60 dBc (-8,-10,-16 dB)

@ rated output

> 60 dB

> 60 dB

1x10-7 (internal ref. or in accordance with

ext. ref accuracy)

1Hz

EXT. TIME AND REF. FREQUENCYREFERENCE FREQUENCY

REFERENCE LEVEL

REFERENCE IMPEDANCE

REFERENCE CONNECTOR

TIME REF. INPUT FREQUENCY

LEVEL

10 MHz

200mV-3Vpp

50 Ω

BNC

1 PPS

1 ÷ 5V peak (referred to GND)

Transmission QualityVIDEO S/N UNIFIED WEIGHTED

AUDIO S/N RATIO

DIFFERENTIAL GAIN ERROR

DIFFERENTIAL PHASE ERROR

LUMINANCE NON-LINEARITY

ICPM

VIDEO AMPLITUDE/FREQ.

RESPONSE

GROUP DELAY TOLERANCE

AUDIO DISTORTION

AUDIO AMPLITUDE FREQ.

RESPONSE

> 62 dB

> 65 dB @ 50kHz deviation

< 3%

< 3°

< 5%

< 3°

< ±0.5 dB

within the vision band

< ±30 ns

≤ 0.05 % at 1kHz

± 0.5 dB, 40Hz to 15KHz

ANALOG TRANSMITTERS

Video Input ParametersVIDEO INPUT SIGNAL LEVEL

VIDEO INPUT IMPEDANCE

INPUT RETURN LOSS

INPUT MANUAL GAIN ADJUSTMENT

VIDEO CLAMPING

WHITE CLIPPING SET AT

1 V p.p.

75 Ω, unbalanced

> 30 dB

± 3 dB

Sync tip or back porch selectable

95% of modulation depth

Audio Input ParametersAUDIO INPUT SIGNAL LEVEL

AUDIO INPUT IMPEDANCE

AUDIO TEST TONE

NOMINAL FREQUENCY

INPUT MANUAL GAIN ADJUST

+8 dBU at ±50 kHz pk. dev

600 Ω or < 3 k Ω

400 Hz

+ 10/-3 dB

STANDARDS

MER

SHOULDERS

GROUP DEALY ERROR

AMPLITUDE ERROR

QUADRATURE ERROR

DVB-T, DVB-T2, DVB-H, ISDB-T,

ISDB-Tb, ATSC

> 36 dB

> 37 dB

≤ 100 ns

≤ 0.5 dB

≤ 1°

DIGITAL TRANSMITTERS

NETWORK MODE

MODE

CHANNEL BANDWITH

LINEAR AND NONLINEAR PRE-CORRECTION

VOIP INTERFACE WITH FEC SMPTE2022-1/2

MISO/SISO SUPPORT

PAPR

SFN and MFN

SPLP, MPLP

1.7/5/6/7/8/10 MHz

DVB-T2 EN 302 755

NETWORK MODE

INPUT MODE

CHANNEL BANDWITH

LINEAR AND NONLINEAR PRE-CORRECTION

HIERARCHICAL TRANSMISSION MODE

SFN and MFN

ASI

5/6/7/8 MHz

DVB-T EN 300 744

PARTIAL RECEPTION

BTS INTERFACE

SFN NETWORK MODE

MULTI-LAYER

ISDB-T ARIB STD-B31

SERIAL REMOTE

ETHERNET / SNMP

RS232

RJ-45

CONTROL AND MONITOR INTERFACES

Exciter 1ETL3100RT

Exciter 2ETL3100RT

SPLITTER

RF OUTPUT

DR

IVE

SP

LITTER

CO

MB

INE

R

Air cooled drawer Amplifier 1

P.S. # 1 P.S. # 2

AUDIOVIDEO

ASI

AUDIOVIDEO

ASI Drawer Amplifier 2

RF OUTPUTcavity filter

Directionalcoupler

ETL0700TATransmitter supervisor

and switchover unit

RF OUTPUT

RF OUTPUTcavity filter

Directionalcoupler

ETL0700TATransmitter supervisor

and switchover unit

COMBINER

Exciter 1ETL3100RT

Exciter 2ETL3100RT

DR

IVE

SP

LITTER

CO

MB

INE

R

SP

LITTER

SP

LITTER

CO

MB

INE

RC

OM

BIN

ER

Air cooled drawer Amplifier 1

P.S. # 1 P.S. # 2 P.S. # 3 P.S. # 4

AUDIOVIDEO

ASI

AUDIOVIDEO

ASI

Air-Cooled ETL SeriesNew Technologies and innovative equipment manufacturing

Air cooled block diagram

Medium Power Transmitters

*Before bandpass filter.

Medium power transmitter, power amplifier drawer may becomposed of one, two or four

RF power amplifier pallet

Medium power transmitter, each poweramplifier drawer may be composed

of one or two RF power amplifier pallet

www.eurotel.it

EuroTel Medium Power, Air-Cooled ETL Transmitters Series Power Levels

UHFB4-5 Digital and Analog Transmitters

Number of amplifiers

Output power (RMS) for COFDM standards*

Output power (RMS) for ATSC standards*

Output power (sync peak) for ANALOG TV*

ETL1491TBG

1

175 W

250 W

375 W

ETL1462TAG

1

350 W

490 W

800 W

ETL1550TAG

1

650 W

900 W

1700 W

ETL1480TBG

2

670 W

930 W

1500 W

VHFB3 Digital and Analog Transmitters

Number of amplifiers

Output power (RMS) for COFDM standards*

Output power (RMS) for ATSC standards*

Output power (sync peak) for ANALOG TV*

VHFB1 Digital and Analog Transmitters

Number of amplifiers

Output power (RMS) for COFDM standards*

Output power (RMS) for ATSC standards*

Output power (sync peak) for ANALOG TV*

ETL1491TBVE

1

125 W

180 W

300 W

ETL1462TBVE

1

250 W

350 W

600 W

ETL1550TAVE

1

500 W

700 W

1400 W

ETL1480TAVE

2

490 W

650 W

1100 W

ETL1491TBV1E

1

120 W

170 W

350 W

ETL1462TAV1E

1

240 W

340 W

700 W

ETL1550TBV1E

1

480 W

680 W

1400 W

ETL1480TAV1E

2

460 W

640 W

1300 W

Exciter + Amplifier single module

Number of amplifiers

Output power (RMS) for COFDM standards *

Output power (RMS) for ATSC standards *

Output power (sync peak) for ANALOG TV *

ETL3100RT

1

100 W

130 W

280 W

EuroTel Headquartersin Lissone, Milan, Italy

Manufacturing plantin Cuveglio, Varese, Itally

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EuroTel S.p.A.Viale Martiri della Libertà 4/4a - Ang. Via Beltrame, 1/3 - 20851 Lissone (MB) - ItalyTel. +39 039 24361 - Fax +39 039 2436222 - www.eurotel.it - sales@eurotel.it