DVB-T Modulators Headend QAM Modulators DVB-C RF Modulators IPTV CATV IP Modulators RF Modulators CS-401-4

Price: 789.0 USD
Payment Terms: T/T
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Basic Info.
  • Brand Name: Chinasuper 
  • Place of Origin: China (Mainland) 
  • Control: LCD/SNMP 
  • Dimensions(L*W*H): 482mm×455mm×44.5mm 
  • Function: LCD keyboard operating, Web NMS support.(Chinese-English ) 
  • Power requirements: AC 110V±10%,50/60Hz or AC 220V±10%,50/60Hz 
  • Input: 8×CVBS inputs,BNC interface 
  • Place of Origin: Sichuan  
  • Min.Order: 1 Set/Sets
Supply Capacity
  • Production Capacity: 200sets
  • Packing:Cartons(Bubble in)
  • Delivery Date: 5-7 Business Days After payment is received

Product Overview

CS-401 Series Modulator is a cost effective integrated QAM modulator. This device is integrated up to 1 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 1 channel ASI inputs (1 QAM (J.83 A/B/C), 1 DVB-C tuner input or 1 DVB-T tuner input). Alternatively, this device can take various RF inputs of DVB-T/ISDB-T/DVB-C/ATSC-T/DTMB-T signals by installing the relevant build-in tuners. CS-401 Series Modulator can also support local and remote control to set its working parameters.



1. Fully comply with DVB-C (EN300 429) and ITU-T J.83A/B/C;

2. 1 adjacent channel QAM carrier wave

3. 1 channels ASI input (1 QAM (J.83 A/B/C), 1 DVB-T tuner input or 1 DVB-C tuner input) and support 188/204 byte TS packet

4. DVB-T/ISDB-T/DVB-C/ATSC-T/DTMB-T RF input (optional)

5. Support accurate PCR adjusting

6. Support five QAM constellation(ITU-T J.83A) modes: 16/32/64/128/256 QAM,

7. Support QAM constellation(ITU-T J.83B/ITU-T J.83C) modes: 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)


Technical Specifications 


1 ASI input


1 DVB-T tuner input


1 DVB-C tuner input


1 ATSC-T tuner input


Modulation parameters

QAM channel



DVB-C(EN300 429)and ITU-T J.83A/ ITU-T J.83B/ ITU-T J.83C

Symbol rate

5.0~9.0Mbps, 1kbps stepping


16 / 32 / 64 / 128 / 256QAM


RS(204, 188)

RF Output


F type, 75Ω impedance

Frequency range

30~960 MHz, 1khz stepping

Output level

-16dbm~0dbm(per QAM carrier) 0.5db stepping


≥ 40db


− 55 dBc


Support LCD display, keyboard operation, and NMS/SNMP operation

English and Chinese version interface conversion

Support Software Upgrading through Ethernet




Approx weight


Temperature range


Power Requirements

AC 110V±10%, 50/60Hz

AC 220V±10%, 50/60Hz

Power consumption


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Chinasuper DVB Co., Ltd.
No.16, Wuke East 1st Road, Wuhou District, Chengdu, Sichuan, China (Mainland)
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