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Trans-mux QAM modulator

CDH9000-TRMXQM


Catvision’s CDH9000-TRMXQM Trans-mux QAM modulator is a high performance modulator with DVB-S/S2/DVB-C demodulating and multiplexing functions. It has one channel tuner and 3 channel ASI inputs. After multiplexing, the modulator will dispose these signals by RS encoding, interleaving and QAM modulating. Furthermore, this is a professional device integrating digital satellite receiver, TS multiplexer and QAM modulator, which effectively reduces the cost. User can take it as a QAM modulator when only ASI input selected.

 



 

  • Fully complying with EN300 429/ITU-T J.83A (DVB-C), GB/T170 standard
  • Symbol rate range: 1.0Msps~7.0Msps
  • Five constellation modes: 16QAM, 32QAM, 64QAM, 128QAM and 256QAM
  • ASI/DS3 input and output (optional)
  • Huge buffer memory for the burst code stream
  • Intelligence null packet filtering, automatically TS filling and PCR fine-tuning
  • NIT insertion
  • Effective inputting real-time bit rate monitoring
  • Output frequency range: 48MHz~860MHz in 10kHz step
  • Output frequency attenuation range: -11dBm~+5dBm in 0.5dB step
  • Full-size front panel LCD display and keyboard
  • NMS operation

Demodulation

 

DVB-S

DVB-S2

DVB-C

Input interface

F Type port, 75Ω

F Type port,75Ω

F Type port,75Ω

Demodulation Standard

 

 

ITU-T J.83A

Frequency range

950~2150MHz

950~2150MHz

168~858MHz

Symbol rate

2~45Mbaud/s

1~45Mbaud/s

1.0~7.0Mbaud/s

LNB

13V/18V

3V/18V

 

Constellation

QPSK

QPSK,8PSK

16QAM,32QAM,64QAM,128QAM,256QAM

Roll-off factor

0.2,0.25,0.35

0.2,0.25,0.35

 

FEC

1/2,2/3,3/4,5/6,7/8

1/2,3/5,2/3,3/4,4/5,5/6,8/9,9/10

 

Pilot

 

ON/OFF

 

Re-multiplexing

MPEG-2 TS re-multiplexing

PID re-mapping( auto/manual optional)

PCR correction

PSI/SI table generated automatically

Modulation parameter

QAM channel

1

Standard

EN300 429/ITU-T J.83A,GB/T170

Symbol rate

1.0~7.0Msps,1ksps step

Constellation

16、32、64、128、256QAM

FEC

RS(204,188)

RF output

Connector

F Type,75Ω impedance

RF range

48~860MHz,10kHz step

Output ATT

-11dBm~+5dBm,0.5db step

System

LCD & keyboard operation, NMS, English display

Software upgraded through network

General

Demission
(W x D x H)

482mm×455mm×44.5mm

Weight

6.1kg

Temperature

0~45℃(Operation),-20~80℃(Storage)

Power supply

AC 220V±10%,50/60Hz

Consumption

25W