QAM modulator 4 ASI input modulator

Specifications

digital TV 4 QAM modulator

Outline 

NDS3340 4 in 1 QAM is a cost effective integrated QAM modulator designed by DEXIN 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. Therefore, the device is featured with excellent RF performance index. It supports 4 channel ASI inputs. Alternatively, this device can take various RF inputs of DVB-S/DVB-C/DVB-T signals by installing the relevant build-in tuners.(user can see the different rear panel illustrations in chapter 2.2) Hence, one PCS 4 in 1 QAM modulator can work as 4 standalone QAM modulators, significantly reducing the network operators’ head-end cost. NDS3340 can also support local and remote control to set its working parameters.

Features

1. Fully complying with EN300429/ITU-T J.83A
2. 4 adjacent channel QAM carrier
3. 4×ASI inputs and 188/204byte TS packet support
4. DVB-S/-S2/-C/-T RF input (optional)
5. Accurate PCR adjusting support
6. 16/32/64/128/256 QAM constellation support
7. Symbol rate adjustment range: 5.0Msps~7.0Msps
8. PSI/SI editing support
9. RF output frequency range: 48MHz~860MHz in 1kHz step
10. RF output level range: -16dBm~0dBm(each carrier) in 0.5dB step
11. Excellent RF output performance index, MER≥40dB
12. LCD & Keyboard operation
13. NMS support

   Specifications