RF-Transmissions Systems - A2D Solutions : Screen TV Transmitters Exciters : DIGITAL TELEVISION TRANSMITTERS

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DIGITAL TELEVISION TRANSMITTERS

TV TRANSMITTERS AND TRANSPOSERS

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Screen DIGITAL TELEVISION TRANSMITTERS

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Complies with ETS 300 744 specifications. All uniform, hierarchical and non-hierarchical DVB-T2 k and 8 k modes. Integrated SFN interface. De-jitter on input signal prior to transmission. Agile integrated up-converter (optional).	DBT 100U DIGITAL DVB-T SFN HIERARCHICAL EXCITER
ASI and LVDS inputs (Dual). Automatic network delay compensation (SFN). GPS reference signal lock. Virtual Elastic Store. MIP decoder for automatic configuration. Automatic precision offset. Excellent eye aperture. Guard interval up to 1/32. BER = 0.

The DBT series consists in a new generationof digital television transmitters with a very high degree ofintegration for MFN or SFN networks according to DVB-T standards.
Starting from the input transport stream, the exciter generates ahigh-quality OFDM RF signal.

DBT 102UB DIGITAL
DVB-T TRANSMITTER

The integrated SFN interface permitsoperations in precision offset conditions with frequency lock onto theGPS reference signal and compensation of the network delay.
All the transmitters have double ASI or LVDS inputs to allow maximumflexibility, also in hierarchical mode.

The generation and transmission of COFDM signals at 2 k or 8 k ispossible with QPSK, 16QAM or 64QAM modulation with payloads from 3.73to 31.67 Mbits/s.

The units in this series are also available in agile version, allowingthe transmission channel to be changed directly via software from thefront panel. Thanks to an internal 32-bit process, the innovativesoftware permits the elaboration of a zero error signal.

The ease of use, the sturdiness of the modular construction and thehigh performance capability of these digital transmitters open up newprospects for the realization of DVB-T networks in both SFN and MFNapplications.

MODEL-SPECIFIC DATA
TELEVISION EXCITERS
Model	Output band	Output connector	Digital output power without filter (Shoulders @ Fo ± 4.3 MHz)
DBT 100T DBT 100U	VHF III UHF	N N	-36dB 7.0 W 10.0 W	-45db 3.5 W 5.0 W	-50dB 2.0 W 2.5 W
TELEVISION TRANSMITTERS
Model	Output band	Output connector	Digitaloutput power without filter (Shoulders -36 dB @ Fo ± 4.3 MHz)
DBT500TA DBT 101TB DBT 201TB DBT 500UA DBT 101UB DBT 201UB DBT 501TB DBT 102TB DBT 132TB DBT 202TB DBT 252TB DBT 501UB DBT 102UB DBT 132UB DBT 202UB DBT 252UB DBT 502TB DBT 512TB DBT 502UB DBT 512UB DBT 103TB DBT 103UB DBT 203TB DBT 203UB	VHFIII VHF III VHF III UHF UHF UHF VHF III VHF III VHF III VHF III VHF III UHF UHF UHF UHF UHF VHF III VHF III UHF UHF VHF III UHF VHF III UHF	N N N N N N 7/16 7/16 7/16 7/8" EIA 7/8" EIA 7/16 7/16 7/16 7/8" EIA 7/8" EIA 1+5/8" EIA 1+5/8" EIA 1+5/8" EIA 1+5/8" EIA 3+1/8" EIA 3+1/8" EIA 3+1/8" EIA 3+1/8" EIA	20 W 50 W 100 W 20 W 50 W 100 W 200 W 400 W 400 W 800 W 800 W 200 W 400 W 400 W 800 W 800 W 1600 W 1600 W 1600 W 1600 W 3200 W 3200 W 6000 W 6000 W

Specifications andcharacteristics are subject to change without notice.

DIGITALTELEVISION TRANSMITTERS

TECHNICAL CHARACTERISTICS
COFDM MODULATOR
Input signal Input data rate Transport packet length IFFT Guard intervals Code rates Modulation Precision offset SFN function Network delay compensation Bandwidth BER Eye aperture on vector constellation w/o I.F. filter Virtual elastic store function to prevent data overflow Serial data input Parallel data input Frequency reference input Time reference input Reference output Integrated GPS receiver Center frequency output Hierarchical mode Spectrum inversion Test functions	MPEG2 3.73 to 31.67 Mbits/s (according to selected BW and mode) 188 bytes - 204 bytes (SPI) 2k and 8k 1/4, 1/8, 1/16, 1/32 1/2, 2/3, 3/4, 5/6, 7/8 QPSK, 16QAM, 64QAM Integrated (Exact 1 Hz steps @ all BW) Integrated Automatic 6 MHz, 7 MHz, 8 MHz Zero over five hours period before RS decoding, typical > 32 dB Integrated 2 x ASI, BNC 75 Ohm 2 x LVDS, Sub-D 25, 100 Ohm 10 MHz, BNC 50 Ohm 1 PPS, BNC 50 Ohm TS clock signal Optional Factory settable at any frequency up to 44 MHz in steps of 1 Hz All DVB-T modes supported Supported Programmable carrier packet removal CW mode "Null packet only" stream
GENERAL
Output frequency Frequency stability In band flatness Cooling Operating temperature Maximum relative humidity Output impedance	VHF III UHF IV/V Locked to external reference or 1 ppm ± 0.1 dB Forced air 0°C to +45°C 90%, non condensing 50 Ohm

Specifications and characteristicsare subject to change without notice.

DIGITAL TELEVISION TRANSMITTERS TV TRANSMITTERS AND TRANSPOSERS
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	DIGITAL_TELEVISI	CALL	0.00
DIGITAL TELEVISION TRANSMITTERS