Réémétteur Télévision DVB-T 3 VOIES

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”