4 in 1 QAM Modulator - JXDH-6302-4

1.1 Outline

JXDH-6303-N All in1 QAM Modulator is a high performance device developed by Chengdu Jiexun Electronics Co., Ltd., integrate up to 4 routes QAM modulating carrier outputs, support 1-4 ASI inputs or DVB-S/DVB-S2/DVB-T standard RF input(optional by built-in tuner), after 1-4 separated encoding and modulating, then RF out directly in high performance.
Support local and remote control to adjust the device parameters, equal to 1-4 individual QAM modulators, so cost and space saved.

1.2 Features

• Fully support EN300 429/ITU-T J.83A
• 1-4 neighbor frequency QAM modulating carrier Output
• 1-4 ASI inputs, support 188/204 byte TS package
• Support DVB-S/DVB-S2/DVB-T RF Input (optional)
• Support PCR accurately correct
• Constellation: 16QAM、32QAM、64QAM、128QAM、256QAM
• Symbol Rate: 4.0Mbauds~7.0Mbauds
• Support NIT insert, update
• RF output frequency: 48MHz~860MHz，
• RF output Level: -20dBm~0dBm，stepping at 0.5dB step
• LCD display panel to operate
• Support network management (NMS)

Application Scope

Digital TV headend;
Satellite digital TV broadcasting;
Terrestrial digital TV;
Image monitoring;
Video on Demand (VOD);
Remote education;
TV conference.

1.3 Performance Index

Input 1-4 routes ASI inputs (Optical), BNC interface; DVB-S/DVB-S2/DVB- T RF input (optional)
Modulate Specification QAM route amount 1-4
Modulate standard EN300 429/ITU-T J.83A
Symbol rate 4.0~7.0Mbauds，stepping at 1kbps
Constellation 16、32、64、128、256QAM
FEC RS(204, 188)
RF Output Connector F, 75Ωimpedance
Frequency range 48MHz~860MHz
Output level -20dBm~0dBm(per carrier)，stepping at 0.5dB
MER ≥ 40dB
ACLR(Adjacent Channel Leakage Ratio) -60 dBc
System Support LCD panel operation, network management, Chinese and English operation interface.
Remote control to adjust parameter and update by internet.
General Measurement(L×W×H) 482mm×300mm×44.mm
Weight 3.2kg
Temperature range 0~45℃(work), -20~80℃(store)
Power requirement AC 110~220V ±10%, 50/60Hz
Power consumption ≤50W