IP to QAM (DVB-C) Modulator


blankom dvb iptv headend

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IP to QAM (DVB-C) Modulator, with up to 1024 IPTV in, with Multiplexer, with 16 RF and 16 MPTS IP out.

⟩⟩⟩ 5. Generation BLANKOM® Hybrid DVB & IPTV Headend Technology. IPTV input, DVB-C and IPTV output with multiplexer and scrambler.
The IPTV input channels can be SPTS or MPTS, unicast or multicast. The internal multiplexer creates 16 streams with any combination of content. The output consists of 16 DVB-C carriers within 192 MHz bandwidth, each with up to 256QAM modulation. Each of the 16 output multiplexes are also provided as MPTS IPTV streams, UDP/RTP/RTSP, unicast or multicast at the both data ports.

  •  2 GigE input, 1 RF output
  • Up to 1024 channels TS over UDP/RTP, unicast and multicast, IGMP v2\v3 input
  • Max 840 Mbps for each GigE input
  • 16 non-adjacent QAM carriers output, compliant to DVB-C (EN 300 429) and ITU-T J.83 A/B
  • 16 multiplexed or scrambled TS over UDP/RTP/RTSP output
  • Accurate PCR adjusting
  • CA PID filtering, remapping and PSI/SI editing
  • Up to 180 PIDS remapping per channel
  • Support DVB general scrambling system (ETR289), simulcrypt standards ETSI 101 197 and ETSI 103 197
  • Supports RS (204,188) encoding
  • Web-based Network management
  • Broadcast quality
  • Professional quality, breakthrough price.

BLANKOM HDC-5016 modulates up to 1024 SPTS or MPTS IPTV channels into 16 QAM (DVB-C) carriers within 192 MHz bandwidth, in broadcast quality.


BLANKOM HDC 5016 is an IP to QAM modulator with internal multiplexer and scrambler. Up to 1024 IPTV challes can be multiplexed and modulated into 16 DVB-C channels. The RF frequencies are configurable.

It has also MPTS stream output of the multiplexed channels. Thus it can beused as SPTS in MPTS out IPTV Multiplexer.

The unit can be controlled remotely through web, with any web browser.


IP to QAM conversion at headends

Edge QAM on CATV networks

Multiplexing SPTS IPTV channels into MPTS IPTV streams

Technical Specifications


IP to QAM Modulator with up to 1024 IPTV input, 16 DVB-C and 16 IPTV MPTS output


  • IP input 512×2 IP input, 2 Gigabit Ethernet Port (Max 840 Mbps for each GigE input)
  • Transport protocol TS over UDP/RTP, unicast and multicast, IGMP V2/V3


  • Input channel quantity 1024
  • Output channel quantity 16
  • Max PIDs 180 per channel
  • Functions: PID remapping (auto/manually optional), PCR accurate adjusting, PSI/SI table automatically generating
  • Scrambling parameters Max simulscrypt CA: 4, Standard: ETR289, ETSI 101 197, ETSI 103 197, Local/remote connection


  • DVB-C (J.83A and J.83B)
  • QAM Channel: 16 non-adjacent carriers,
  • Standard: EN300 429/ITU-T J.83A/B
  • Constellation 16, 32, 64 , 128, 256QAM
  • Bandwidth: 8 MHz (J.83A), 6 MHz (J.83B)
  • FEC RS (204, 188)


  • 1 F typed output port for 16 carriers, 75Ω impedance
  • Symbol Rate: 5.0Msps~7.0Msps, 1ksps steps
  • Output Level -20dBm~+10dBm (87~117dBµV), 0.1dB stepping
  • MER ≥ 40dB,
  • ACLR: -60 dBc


  • 16 IP output over UDP/RTP/RTSP, unicast/multicast, 2 GigE Ethernet Ports


  • Control: LCD/keyboard, network management (SNMP and WEB)
  • English language menu
  • Ethernet software upgrade


  • Dimensions: 420mm × 440mm × 44.5mm, 19” 1U,
  • Approx weight 3kg
  • Power: AC 110V±10%,50/60Hz or AC 220V±10%, 50/60Hz
  • Power consumption 15.4 W
  • Temperature: 0~45℃ (operation), -20~80℃ (storage)

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