DVB-S2 Digital Modulator CATV Qam Modulator

Summary of IRD
SFT3340B 4 in 1 QAM is a cost effective integrated QAM modulator newly designed by SOFTEL Company. This device is integrated up to 4 channel QAM modulating carrier outputs, in which each carrier has independent signal channel encoding and direct RF output. Por lo tanto, the device is featured with excellent RF performance index. 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. Por lo tanto, one PCS 4 in 1 QAM modulator can work as 4 standalone QAM modulators, significantly reducing the network operators’ head-end cost. SFT3340B can also support local and remote control to set its working parameters.

Characteristic of QAM Modulator

1. Fully comply with DVB-C (EN300 429) and ITU-T J.83A/B/C;
2. 4 adjacent channel QAM carrier wave
3. 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
4. DVB-S/DVB-S2/DVB-C RF input (Opcional)
5. Support accurate PCR adjusting
6. Support five QAM constellation(ITU-T J.83A) modos: 16/32/64/128/256 QAM,
7. Support QAM constellation(ITU-T J.83B/ITU-T J.83C) modos: 64 /256QAM
8. Symbol rate adjustment range: 5.0Mbps~9.0Mbps
9. Support PSI/SI editing function
10. RF output range: 30MHz~960MHz in 1.0 kHz step
11. RF ATT range: -16dBbm~0dBm in 0.5dB step
12. Support input de-multiplexing and PSI/SI editing
13. Support LCD display and keyboard
14. Excellent RF output performance index, MER≥40db
15. Support network management(NMS/SNMP)

Technial Parameter of QAM Modulator