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Quick Details

  • Place of Origin: Sichuan, China (Mainland)
  • Brand Name: JIEHAO/OEM
  • Model Number: JXDH-6303-4
  • input: 1-4 ASI
  • Output: 1-4 RF
  • Modulate mode: 16QAM,32QAM,64QAM,128QAM,256QAM
  • Frequency range: 48MHz~860MHz
  • RF Input: DVB-S/DVB-S2/DVB-T(optional)
  • Symbol Rate: 4.0Mbauds~7.0Mbauds
  • NIT insert: Yes

Packaging & Delivery

Packaging Details Standard carton package
Delivery Time 3-5 working days after payment


QAM modulator
Fully support EN300 429/ITU-T J.83A
1-4 neighbor frequency QAM modulating carrier Output

Low cost multi channel ASI input DVB-C QAM modulator output 4 channel RF    



JXDH-6303-N All in1 QAM Modulator is a high performance device developed by Chengdu Jiexun Electronics Co., Ltd., integrate up to 4 routes QAM modulating carrier outputs, support 1-4 ASI inputs or DVB-S/DVB-S2/DVB-T standard RF input(optional by built-in tuner), after 1-4 separated encoding and modulating, then RF out directly in high performance.

Support local and remote control to adjust the device parameters, equal to 1-4 individual QAM modulators, so cost and space saved.



Fully support EN300 429/ITU-T J.83A

1-4 neighbor frequency QAM modulating carrier Output

1-4 ASI inputs, support 188/204 byte TS package

Support DVB-S/DVB-S2/DVB-T RF Input (optional)

Support PCR accurately correct

Constellation: 16QAM,32QAM,64QAM,128QAM,256QAM

Symbol Rate: 4.0Mbauds~7.0Mbauds

Support NIT insert, update

RF output frequency: 48MHz~860MHz

RF output Level: -20dBm~0dBm,stepping at 0.5dB step

LCD display panel to operate

Support network management (NMS)


Performance index


1-4 routes ASI inputs (Optical), BNC interface;     DVB-S/DVB-S2/DVB- T RF input (optional)

Modulate Specification

QAM route amount


Modulate standard

EN300 429/ITU-T J.83A

Symbol rate

4.0~7.0Mbauds,stepping at 1kbps




RS(204, 188)

RF Output


F, 75Ωimpedance

Frequency range


Output level

-20dBm~0dBm(per carrier),stepping at 0.5dB


≥ 40dB

ACLR(Adjacent Channel Leakage Ratio)

-60 dBc


Support LCD panel operation, network management, Chinese and English operation interface.

Remote control to adjust parameter and update by internet.






Temperature range

0~45°C(work), -20~80°C(store)

Power requirement

AC 110~220V ±10%, 50/60Hz

Power consumption



























Our Services



  1. Provide technical advice for system network.
  2. Provide an initial design and technical solutions,
  3. Provide network planning, construction management program, product features demo and trial.


  1. Provide instruction for equipment connection and setting
  2. Provide remote training for NMS and CAS/SMS via Team-viewer
  3. Provide engineer to instruct installation on site

(Pls note you need to provide a round-back tickets, accommodation and allowance)



  1. 3 years free maintain for non-artificial damage.
  2. 24/7 support in Hardware and Software. (Pls make an appointment with us in advance)                                                
  3. Provides software, hardware upgrade solution.
  4. Provide network upgrades.
  5. Regular telephone and email follow
  6.  Provide the necessary products spare parts  

For more details, pls kindly contact Angela Chen via skype:cdjiexun




About Jiexun

Production equipment


Testing equipment


Package process

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