UVDH-Q-04 4 in 1 QAM Modulator is integrated up to 4 channel QAM modulating carrier outputs, in which each carrier has independent signal channel encoding and direct RF output so the device is featured with excellent RF performance. It supports 4 channel ASI inputs (4 QAM (J.83 A/B/C), 4 DVB-S tuner input or 4 DVB-S2 tuner input). Alternatively, this device can take various RF inputs of DVB-S/DVB-C/DVB-S2 signals by installing the relevant build-in tuners. Hence, one PCS 4 in 1 QAM modulator can work as 4 standalone QAM modulators, significantly reducing the network operator's head-end cost.
Features:* Fully comply with DVB-C (EN300 429) and ITU-T J.83A/B/C;
* 4 adjacent channel QAM carrier wave
* 4 channels ASI input (4 QAM (J.83 A/B/C), 4 DVB-S tuner input or 4 DVB-S2 tuner input) and support 188/204 byte TS packet
* DVB-S/DVB-S2/DVB-C RF input (optional)
* Support accurate PCR adjusting
* Support five QAM constellation(ITU-T J.83A) modes: 16/32/64/128/256 QAM,
* Support QAM constellation(ITU-T J.83B/ITU-T J.83C) modes: 64 /256QAM
* Symbol rate adjustment range: 5.0Mbps~9.0Mbps
* Support PSI/SI editing function
* RF output range: 30MHz~960MHz in 1.0 kHz step
* RF ATT range: -16dBbm~0dBm in 0.5dB step
* Support input de-multiplexing and PSI/SI editing
* Support LCD display and keyboard
* Excellent RF output performance index, MER≥40db
* Support network management(NMS/SNMP)
Technical Specification:
INPUT |
4 ASI input (or 4 DVB-C/S/-S2 Tuner input) |
Modulation |
QAM |
4 |
Standard |
DVB-C(EN300 429) and ITU-T J.83A/ ITU-T J.83B/ ITU-T J.83C |
Symbol rate |
5.0~9.0Msps, 1ksps step |
Constellation |
16QAM,32QAM,64QAM,128QAM,256QAM |
FEC |
RS(204, 188) |
RF output |
Interface |
F type, 75 impedance |
Frequency range |
48~960 MHz, 1khz step |
Output level |
-16dbm~0dbm(per QAM carrier) 0.5db stepping |
MER |
≥ 40db |
System |
Support LCD display, keyboard operation, and NMS/SNMP operation |
English and Chinese version interface conversion |
Support Software Upgrading through Ethernet |
General |
Dimension (LxWxH) |
482mm×455mm×44.5mm |
Weight |
3Kg |
Temperature range |
0~45ºCOperating),-20~80ºC(Storage) |
Power Supply |
AC 110V±10%, 50/60Hz AC 220V±10%, 50/60Hz |
Power consumption |
<25W |