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КАТАЛОГГоловные станции КТВASTROМодуля Х серии
X-QAM twin 3 
X-QAM twin 3

Раздел: Модуля Х серии



  • for processing of two QPSK-modulated SAT-IF-signals into two QAM-modulated adjacent channels in the frequency range of 47 - 862 MHz;
  • future-proof by integrated data rate adjustment, PCR-correction
QPSK demodulator
Input frequency range [MHz] 920 - 2150
Input level [dBµV] 50- 80
SAT IF input [Ω] F jack, 75
Spectrum shape cos-roll-off [%] 35
Input data rate [mBaud] 10,0- 30,0
Viterbi decoding   1/2; 2/3; 3/4; 5/6; 7/8, automatically / manually (according DVB standard)
QAM modulator
Modulation   16-, 32-, 64-, 128-, 256-QAM (digital implementation)
Shoulder attenuation [dB] typ. 50
Signal processing   according DVB-Standard
Spectrum shape [%] 15 cos-roll-off
FEC   Reed-Solomon (204,188)-Code
Data rate adjust   yes
PCR correction   yes
Output symbol rate [MBaud] depends on input data rate
Bandwidth [MHz] depends on input data rate
Brutto data rate [MBit/s] depends on input data rate
RF Output
Connections [Ω] IEC jack, 75
Frequency range [MHz] 47 - 862(C 2- C 69)
Output level [dBµV] 80 … 90, adjustable
MER (Equalizer, 64 QAM) [dB] typ. 40
Spurious freq. distance 40 - 862 MHz [dB] > 60 discrete interferences / > 57 noise interferences 
Spurious freq. distance >950 MHz [dB] > 20 relating to 100 dBµV system level and 90 dBµV operating level
Common data
Power consumption [W] 9,5
Ambient temperature [°C] 0... +50
  • for processing of two QPSK-modulated SAT-IF-signals into two QAM-modulated adjacent channels in the frequency range of 47 - 862 MHz;
  • future-proof by integrated data rate adjustment, PCR-correction
QPSK demodulator
Input frequency range [MHz] 920 - 2150
Input level [dBµV] 50- 80
SAT IF input [Ω] F jack, 75
Spectrum shape cos-roll-off [%] 35
Input data rate [mBaud] 10,0- 30,0
Viterbi decoding   1/2; 2/3; 3/4; 5/6; 7/8, automatically / manually (according DVB standard)
QAM modulator
Modulation   16-, 32-, 64-, 128-, 256-QAM (digital implementation)
Shoulder attenuation [dB] typ. 50
Signal processing   according DVB-Standard
Spectrum shape [%] 15 cos-roll-off
FEC   Reed-Solomon (204,188)-Code
Data rate adjust   yes
PCR correction   yes
Output symbol rate [MBaud] depends on input data rate
Bandwidth [MHz] depends on input data rate
Brutto data rate [MBit/s] depends on input data rate
RF Output
Connections [Ω] IEC jack, 75
Frequency range [MHz] 47 - 862(C 2- C 69)
Output level [dBµV] 80 … 90, adjustable
MER (Equalizer, 64 QAM) [dB] typ. 40
Spurious freq. distance 40 - 862 MHz [dB] > 60 discrete interferences / > 57 noise interferences 
Spurious freq. distance >950 MHz [dB] > 20 relating to 100 dBµV system level and 90 dBµV operating level
Common data
Power consumption [W] 9,5
Ambient temperature [°C] 0... +50






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