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V512 - DVB S2 to QAM twin converter



  • Виробник: Astro
  • в наявності
  • for processing DVB-S(2)-modulated SAT-IF-signals into QAM independent output channels;
  • outstanding output parameters by Direct Digital technology: MER typ. 45 dB;
  • integrated data rate adjustment, PCR-correction, PID-filter (pass and drop service filter) and NIT-generation


DVB-S(2) demodulator
Input frequency range[MHz]920- 2150
Input level[dBµV]50- 80
SAT IF input[Ω]F-jack, 75
Input symbol rate[MS/s]maximum 30,0
DVB-S viterbi 1/2; 2/3; 3/4; 5/6; 6/7; 7/8
DVB-S2 LDPC 1/4; 1/3; 2/5; 1/2; 3/5; 2/3; 3/4; 4/5; 5/6; 8/9; 9/10
DVB-S2 roll-off-factors 0,20; 0,25; 0,35
DVB-S2 modulation QPSK, 8PSK
QAM modulator
Modulation 16-, 32-, 64-, 128-, 256-QAM
Signal processing according DVB standard
Spectrum shape cos-roll-off[%]15
FEC Reed-Solomon (204,188)-Code
Data rate adjustment yes
PCR correction / NIT handling yes
PID filter Pass or Drop Service Filter
Output symbol rate[MSym]depends on input data rate, 3,45 - 6,9
Bandwidth[MHz]depends on input data rate, 4 - 8
Brutto data rate[MBit/s]maximum 55,2
RF output
Connectors[Ω]IEC jack, 75
Frequency range[MHz]47 - 862 (C 2 - C 69) in 1-MHz-steps adjustable
Output level[dBµV]80 … 90, adjustable
MER (Equalizer, 64 QAM)[dB]typ. 45
Spurious freq. distance 40 - 862 MHz >950 MHz[dB]> 60 discrete interferences / > 57 noise interferences > 20 relating to 100 dBµV system level and 90 dBµV operating level
Common data
Power consumption[W]13,1
Ambient temperature[°C]0... +50
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