Encoder Modulator CDH8500-8M4ENQM

CDH8500-8M4ENQM is a professional high integrated device including encoding, multiplexing, scrambling and DVB-C modulation. It supports 8 HDMI input, one DVB-C tuner input and two GE &FE IP input, the output is DVB-C RF out with 4 adjacent carries between the frequency range from 50MHz to 960MHz, at the same time it has equipped with 1 GE output port to support 4 groups MPTS out. This full function device makes it ideal for small CATV head end system, and it’s a smart choice for hotel TV system, entertainment system in sports bar, hospital, apartment.

SKU: CDH8500-8M4ENQM Category:



  • 8 HDMI input, 1DVB-C tuner input, and two GE IP input & one FE IP input
  • 4 groups mux, 4 groups scrambling and 4 DVB-C carrier out, one GE IP output
  • Supports MPEG1 Layer II and audio gain to adjust audio volume
  • Excellent RF output performance index, MER≥40dB +Support IP (MPTS only, DATA1 port only) output over UDP and RTP
  • Fully supports DVB general scrambling system description ETR289, simulcrypt standard d ETSI 101 197 and ETSI 103 197
  • Supports accurate PCR adjusting
  • Supports PSI/SI editing and inserting
  • Control via web management, and easy updates via web
  • Supports license function
  • Lowest cost per channel, breakthrough price

Technical Specifications:



8 HDMI inputs

1 DVB-C Tuner, F type interface

DATA1(GE port)/DATA2(GE port)/DATA3(FE port),RJ45







1920×1080_30P, 1280×720_30P, 1920×1080_50i ,1280×720_50i,

720×480_50i,320× 240_60i,176× 240_60i, 176× 120_60i

720× 576_50i,704× 576_50i,640× 576_50i, 352× 288_50i

320× 288_50i, 176× 288_50i, 176× 144_50i,

Encoding  MPEG-4 AVC/H.264
Bit-rate 8Mbps~19Mbps each channel
Rate Control CBR/VBR
GOP structure  IPP



Encoding MPEG-1 Layer
 Sampling rate  48KHz
 Resolution   24-bit
Bit-rate 32kbps,48kbps ,56kbps,64kbps,80kbps,96kbps,112kbps,128Kbps,160kbps,192kbps,224kbps,256kbps,320kbps,384kbps




Maximum PID Remapping


180 input per channel
Function PID remapping (automatically or manually)
Accurate PCR adjusting
 Generate PSI/ SI table automatically


Maximum simulcrypt



Standard EN300 429/ITU-T J.83A/B
Connection Local/remote connection








QAM Channel: 4

Standard: EN300 429/ITU-T J.83A/B

MER: ≥40db

RF frequency: 50~960MHz, 1KHz step

RF output level: -26~-1dBm (81~106 dbµV), 0.1dBm stepping Symbol Rate: 5.0Msps~7.0Msps, 1ksps stepping

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

Standard J.83A J.83B
Constellation 16/32/64/128/256QAM 64/256 QAM
Bandwidth 8M 6M
Steam output RF output (F type interface)
4 IP output over UDP/RTP, 1*1000 Base-T Ethernet interface

System function

Network management (WEB)
Chinese and English language
Ethernet software upgrade





Dimensions (W×  L×  H) 482 mm× 410 mm× 44 mm
Approx. weight 8kg
Environment 0~45℃(work);-20~80℃(Storage)
  Power requirements AC  220V ± 10%, 50/60Hz
Power consumption 70W