Type: RF Modulators , IPTV Encoders
Part Number: 5104-001
Size: 8.500 wide x 1.750 high x 6.000 deep
Weight: 1.500
Distribution: AV over RF , AV over IP , Hybrid Systems
Released: May 2016

Where to Buy

QMOD Product Manual
CR Toolbox 4.4.4
CR Viewer 0.1.4

  • QMOD-SDI HDMI Front View
  • QMOD-SDI HDMI Rear View

More about RF Modulators

Modulation in its most basic definition is the mixing of two sinusoidal signals. The RF modulator takes an input signal and outputs a modulated signal to be transmitted as a video channel to any number of connected TVs. RF Modulators are used to distribute video in widely diverse installations, including stadiums, arenas, office buildings, college campuses, houses of worship, sports bars, and restaurants

About QMOD-SDI HDMI HDTV Modulator-IPTV Encoder

The QMOD-SDI HDMI is a professional dual-channel frequency-agile RF Modulator/Encoder ideal for distributing live video from SDI and HDMI sources as well as digital signage content from media players or PCs.

Related Equipment & Software

Software Tools

Free software tools that allow users to maintain, monitor, and update many of their CR products.


Contemporary Research offers a variety of product accessories to necessitate or enhance the functionality of AV products.

Full Description & Specifications

The QMOD-SDI HDMI is a professional dual-channel frequency-agile RF Modulator / Encoder for distributing HD video content over CATV systems to an unlimited number of televisions or standalone HDTV Tuners. The unit is ideal for distributing live video from SDI and HDMI sources as well as digital signage content from media players or PCs. Dual-channel operation is standard, creating two virtual programs on one physical RF channel. Encoding can be MPEG-2 or H.264. The latest generation now has an adjustable RF output level up to 45 dBmV.

Dual hardware scalers accept content up to 1080p and compensate for non-broadcast and PAL frame rates. The QMOD-SDI HDMI can simultaneously output the content as a Multicast or Unicast IPTV stream. Options include easy front-panel setup, dual-language SAP audio, and Emergency Alert System. Dual unit rack mounting offers up to four programs per rack unit, with the ability to mix models to handle HDMI, SDI, Component, RGBHV and NTSC video sources.

  • One SDI Input – 3G SDI (Level A), HD-SDI, and SD-SDI
  • One HDMI Input (Type A, Version 1.3) accepts 480i/29.97Hz to 1080p 59.94/60Hz video and common PC resolutions
  • Dual hardware scalers for resolution and frame rate conversion to standard HDTV formats
  • Adjustable size and position enable precise formatting for edge-to-edge presentation
  • Two Composite/CC video inputs for encoding, captioning, or EAS use
  • Accepts embedded HDMI AC-3 and PCM audio
  • Two analog stereo and two SPDIF coaxial audio inputs
  • MPEG-2 or H.264 encoding selectable individually for each program
  • MPEG-2 output resolutions – 480i, 480p, 576i, 720p, 1080i, or auto
  • H.264 output resolutions – 480i, 480p, 576i, 720p,1080i, or auto; 1080p from a 1080p source
  • Accepts analog stereo or PCM audio and encodes to AC3 with SAP dual-language capability
  • Supports AC-3 pass-through
  • Embeds captioning from Line 21 data on composite video inputs and embedded 608/708 captioning from SDI input
  • Delivers fully agile QAM 64/256 digital cable channels 2-135 or 8VSB off-air channels 2-69
  • Adjustable output level from 19-45 dBmV in 1dB steps
  • Up to 268 HD Programs, 134 Channels per system
  • Streams Multicast or Unicast IPTV from GigE Ethernet port
  • Rack-mountable two across in 1RU
  • Configuration and monitoring via front-panel or onboard Web pages
  • Meets RoHS and California energy-saving standards

Distribution: AV over RF , AV over IP , Hybrid Systems

  • One SDI BNC Female Input
  • 3G-SDI – 1080p at 50/59.94/60Hz
  • HD-SDI – 1080psf and 1080i at 23.79/24/25/29.97/30Hz, 720p at 50/59.95/60Hz
  • SD-SDI – 480i at 29.97Hz
  • One HDMI receptacle, Type A, Version 1.3
  • Two RCA Composite video/CC inputs

  • Two RCA SPDIF coaxial inputs
  • Two analog stereo 3.5mm TRS inputs

  • H.264 or MPEG-2 Profile: MP@HL for HD, MP@ML for SD, 1080i, 720p, 576i, 480p, and 480i output resolution
  • MPEG-2 Video Encoding bit rate 8-20 Mbps (1080i,720p); 6-16 Mbps (1080p); 4-8 Mbps (575i,480i)
  • H.264 Video Encoding bit rate 5-10 Mbps (1080i,720p); 7.5-15 Mbps (1080p); 3-8 Mbps (480p);
    • 2-4 Mbps (480i, 575i)
  • Variable bit rate if set for IP output only
  • PCM or MPEG-1, Layer 2 audio encoded as AC-3
  • SAP Dual-language capability, second audio track encoded as MPEG-1, Layer 2
  • Dual-channel operation, two programs in MPEG-2 or H.264 Transport Stream for QAM or IPTV output
  • IPTV configurable as MPTS and SPTS, UDP or RTP

  • Switchable 64/256 QAM, J83 Annex B, Interleaving Modes (128,1), MER 38 dB typical
  • 8VSB off-air channels

Front Panel:
  • LCD Text display, white text on blue background
  • Setup and Select buttons
  • Up, Down, Left, and Right navigation buttons
  • Mini USB-B port virtual network adapter for Web page access and firmware updates

  • RJ-45 GigE Ethernet Connector for Web page access and firmware updates

  • Mini phoenix connector for contact closure or logic input to recall emergency alert video source

  • FCC Class B, ROHS, meets California standards

  • 2.1mm coaxial jack (inside center conductor positive), 1.5A maximum, 11.5 to 13.5 VDC, 12 VDC typical

  • 5403-001, PS12-2 Power Supply
  • 5061-007, 3.5mm to RCA Audio Cable
  • 5008-025, Universal Rack Mount Kit
PS12-8-4Y w 350.jpg

PS12-8-4Y Power Supply

12VDC 8A Power Supply with 4 Unit Y Cable