Réémétteur Télévision DVB-TV 1 VOIE
DVB-T MODULATOR
Data input ASI MPEG-2 o serial-data serial-clock *
TS format Burst mode or continuous mode
ASI lenght input 188 byte or 204 byte ( with automatic adaptation)
Modulation COFDM (ETSI EN 300 744)
TS input data rate From 4.98Mb/s to 31.67Mb/s
according to parameter setted
Output Frequency 36MHz, 36.15MHz, 36.2MHz, 54MHz,
56MHz, 70MHz, 119.7MHz *
Carrier number (IFFT) 2 K, 8K *
Bandwidth 6MHz, 7MHz, 8 MHz *
Code rate FEC = 1/2, 2/3, 3/4, 5/6, 7/8. *
Guard time 1/32, 1/16, 1/8, 1/4. *
Constellation QPSK, 16QAM, 64QAM. *
Network mode MFN
Data scrambling EN 300 744 *
Spectrum polarity Normal or inverted *
PCR PCR time restamping *
Amplitude imbalance < 1%
Quadrature error < 1°
MER Typically 42 dB
Output level -15 dBm rms. 2 output SMB connectors
Communication port RS 232 (inside module)
Signalling leds Data pres, 188 / 204 mode, data input overflow,
system ok
* Adjustable with jumpers inside module
TRANSMITTER
Output frequency range VHF or UHF
Output power 2W to 3000W average
Transmission system BVB-T or ATSC
Adjacent intermodulation < - 60 dB (with output filter)
Shoulders < - 38 dB (with output filter)
MER typically 32 - 35 dB
Power supply 110 - 240 V single phase
or 220 - 400 V three phase
Dimension Standard rack 19”