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. 

* 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)