Mix and Match modules as needed

Each HDbridge™ module connects to a satellite or cable receiver or other component video source and converts that signal in an HD digital cable (QAM) channel that can be received by any HDTV over standard coax wiring.

Key Features

  • Modules come in three resolutions – optimize value by matching the native resolution of your sources, connected by high-resolution component video (Y, Pr, Pb) connections.
  • DVD Quality at 480p – with component video, even SD (480) sources deliver stunning DVD performance and full digital quality while respecting content broadcast requirements.
  • Digital Audio – Dolby AC-3 pass-through or PCM encoding.
  • Ethernet port – for configuration and remote management.
  • Set channel via a simple front-panel button – up and running in minutes.
  • Integrated Closed Caption support – required for ADA compliance in many applications.
70 channels of HDbridge  ENLARGE


HDbridge™ Module Connections


A/V Capture
  • Component video input (Y, Pr, Pb)
  • HDb620 - 1080p, 1080i, 720p, 480p and 480i
  • HDb520 - 720p, 480p and 480i
  • HDb420 - 480p and 480i
  • Closed Caption support via composite input
  • Digital AC-3 or PCM Audio via RCA
HD MPEG2 Encoding
  • Up to 36Mbps sustained average encoding rate
  • Encoding of PCM audio inputs, pass-through of encoded audio input
  • Digital and Visual Watermarking for content tracking
  • User-settable program information
RF Modulation / Channel Upconversion
  • Well-formed QAM 256 or QAM 64 6Mhz channel, inserted onto any blank channel
  • Frequency agile from 50 to 858Mhz (Channels 2-135)
  • Supports STD, HRC or IRC cable standards


Video Input
Component Video (Y, Pr, Pb) RCA connectors, 75 Ohm 0 to 0.7v Resolutions Supported:
  • HDb620 1080p, 1080i, 720p, 480p, 480i
  • HDb520 720p, 480p, 480i
  • HDb420 480p, 480i
59.94 frames/fields per second
Closed Caption EIA/CEA-608 captions accepted over composite video input
Audio Input
SPDIF Digital Audio Physical Connections
  • TOSLINK optical
  • RCA 75 ohm
  • 48K, 44.1K, 32K bit PCM
  • AC-3 Pass-through
Video Encoder
Encoder Video Profile MPEG2 HD Profile 2: ISO13818-2 MP@HL (1920x1080 or 1280x720)
Traffic Shaping Variable Bit Rate
Video Transport Bit Rate 38.78 Mbps
Video Encoding Data Rates Variable, 7 Mbs - 38 Mbs
Average Encoding Data Rate up to 35 Mbps
Encoding Latency Programmable 100 msec to 400 msec
Color Profile 4:2:0
GOP Size 24
Video, Audio PID Programmable
Program Information Programmable
Content Watermarking Digital and Visual
Audio Encoder
Encoder Audio Profile ATSC A/52
Digital Pass-through Dolby Digital© (AC-3) 1-5.1 channel, Dolby© E, Linear PCM
Modulation Types QAM 256, QAM 64 (ITU-T J83 Annex B) Interleaving modes: (64,2) only
Cable Standard HRC, IRC or STD
Frequency Range 50 - 850 MHz (channels 2-135)
  • 2 kHz resolution
  • +/- 30 ppm accuracy
  • +/- 35 ppm stability
Output Power +25 dBmV typical
Output Level Adjust 5 - 25 dBmV in 1dBmV steps
MER 36 dB typical
I/Q Amplitude Imbalance < 1% typical
Spectral Tilt <= 1dB over 6MHz typical
Network interface 10/100/1000mb Ethernet via RJ45 connection
IP address via DHCP or set by user
HTML/Javascript served web interface for easy configuration
Telnet connection for CLI scripting
Easy firmware updates
All settings saved in NV storage
Front Panel Button Rapidly set broadcast channel and cable standard without needing any other equipment
Power +12v, 18 Watts. Provided by Rack Chassis
Cooling Internal fan, rear exhaust
Mounting Rack Chassis (HDb-RK1) holds up to eight modules, taking 6RUs
Enclosure Type Metal
Enclosure Dimensions 1.7" H x 10.5" W x 4.75" D
4.32 cm H x 26.67 cm W x 12.07 cm D
Carton Dimensions (individual) 2.5" H 11.5" W 8" D
64 mm H 292 mm W 203 mm D
Shipping Weight 3.5 lbs (1.59 kg)
Temperature/Humidity Operating +32F to +104F (0C to +40C) / 10% to 80%, non-condensing
Vibration NSTA 1A in carton
MTBF 30,000 hours
Compliance FCC Class B
Part number HB620-NA, HB520-NA, HB420-NA
Model name HDb620, HDb520, HDb420
Warranty 1 year


Most times, all you really need to do is set the channel that you will broadcast on. We have a really simple way for you to do that - a single button on the front combined with an LED. See our front button configuration page to learn more.

If you want to get creative, HDbridge™ modules allow you to set channel names, customize idle screens with the customer's logos, and even change the 'heartbeat' watermark in the lower right corner with an image of your choosing. This more advanced configuration is done by connecting a web browser to the module. See the WebManager page to learn more.