Post on 09-Mar-2018
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