Contemporary Research QMOD-HDMI RGB HDTV Modulator

Contemporary Research QMOD-HDMI RGB HDTV Modulator

Contemporary Research QMOD-HDMI RGB HDTV Modulator

B&H # COQMODHDMI MFR # 5105-001
Contemporary Research QMOD-HDMI RGB HDTV Modulator

Contemporary Research QMOD-HDMI RGB HDTV Modulator

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  • 1Description

The QMOD-HDMI RGB HDTV Modulator from Contemporary Research features one non-encrypted HDMI and one RGBHV/component inputs, making it suitable for sports, motion, and digital signage encoding. Dual hardware scalers accept content up to 1080p, shapes VGA signage for edge-to-edge presentation, and compensates for non-broadcast and PAL refresh rates. With ability to deliver two HD programs in one channel, the QMOD-HDMI 1.5 can also output the content as a multicast or unicast IPTV stream. 

The modulator comes with dual-language SAP audio, easy front-panel setup, and alternate audio and NTSC video inputs. Web setup, monitoring, and firmware updates are available via USB and Ethernet ports. Two-across mounting offers up to four programs per rack space and the ability to mix models to handle HDMI, SDI, Component, RGBHV, and NTSC video sources. The version 2.3.4 update reduces end-to-end RF latency to 500 ms and adds RTP protocol for IP streaming.


One HDMI (non-HDCP) input, up to 1080p video and audio
One RGBHV/Component input, up to 1080p video
Two Composite video inputs for encoding, captioning, or EAS use
Two sets of stereo and SPDIF coax audio inputs


Creates SD and high-definition MPEG-2 and/or H.264 streams at 480i, 480p, 576i, 720p, or 1080i for distribution
Accepts stereo or PCM audio and converts to Dolby Digital AC-3 with SAP dual-language capability
Converts PCM or MPEG1, Layer 2 audio to stereo AC-3, AAC or MP12, and pass-through AC-3
Embedded captioning from Line 21 data on composite video inputs
Dual hardware scalers enable precise formatting of digital signage for edge-to-edge presentation.
Accept up to 1080p 30/60 Hz and PAL video as well as various computer graphics resolutions while delivering programs at a fixed resolution
Dual-channel operation is standard
Creates one physical channel with two HD programs
Dual encoders can stream a simultaneous MPEG2 or H.264 QAM MPTS stream and separate IP SPTS streams or one encoder can process an MPEG2 stream for QAM and the second can process an H.264 IP stream


Delivers a fully agile QAM 64/256 digital cable channel 2-135
Up to 268 HD Programs and 134 channels per system
Streams multicast or unicast IPTV from GigE Ethernet port
Distributes channel over an onsite broadband cable system with adjustable output level up to 29 dBmV
Compatible with all CATV format broadband systems


Setup with front-panel buttons and easy to use menus, including inputs, encoding, channel, and RF options or use onboard web page for setup and monitoring
Update firmware from USB or Ethernet
Fan cooled with variable speeds
Includes compact switching power supply
Saves power and rack space using 1/2 rack width design
Can be mounted on the optional 1RU single (RK1) or dual (RK2EZ) 19" rack mount kits
Meets RoHS safety and California energy standards


Accepts 480i to 1080p video and various computer graphics resolutions
Edge to edge presentation with zoom, shrink, and X/Y axis positioning
Native or scales to fixed output resolution, 1080p scaled to 1080i
In the Box
Contemporary Research QMOD-HDMI RGB HDTV Modulator
  • PS12-2 Switching Power Supply
  • Standard AC Cord for Power Strips
  • HD15 to RCA Component Breakout Cable
  • 3.5mm to 2-RCA Audio Cable
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Encoding MPEG2/H.264 Profile: MP@HL for HD, MP@ML for SD
    1080i, 720p, 576i, 480p, and 480i output resolution
    MPEG2 Video Encoding Bitrate 10 to 25 Mbps, HD, 5 to 6 Mbps 480i, variable bitrate if set for IP output only
    H.264 Video Encoding Bitrate 5 to 10 Mbps, HD, 2 to 4 Mbps 480i, or variable bitrate if set for IP output only
    Modulation Switchable 64/256 QAM, J83 Annex B, Interleaving Modes (128,1)
    MER: 38 dB typical
    Compliance FCC Class B, RoHS, meets California energy standards
    Front Panel Menu Setup with front panel Select and Directional buttons
    Menu LCD, Blue with 2 lines of 20 white characters each
    Power Connector 2.1 mm coaxial jack (inside center conductor positive)
    Power Requirements 1.1 A maximum, 11.5 to 13.5 VDC
    Output Voltage 12 VDC typical
    EAS Looped Output 3 GPI pins for latching control
    Closure SW (NO) for Closure: V+, 5 to 12 VDC, Ground
    Ethernet RJ-45 GigE Ethernet connector
    HDMI Input 1 x HDMI, up to 1080p, as well as, various computer graphics resolutions
    Component Input 1 x RGBHV/Component input up to 1080p as well as various computer graphics resolutions
    Composite Video RCA female NTSC/PAL, also used for Line 21 captioning data
    Audio 2 x Digital SPDIF Coax RCA jacks, PCM/AC-3, 48/44.1K sample rate
    Stereo Audio: 2 x stereo analog 3.5 mm inputs
    RF F, female, 75 Ohms impedance
    Channels Agile: 2 to 135 (57 to 861 MHz), standard, HRC, or IRC spacing
    Channels per System: 134
    Programs HD Programs: 268
    Bandwidth 6 MHz, fits any open channel without interference to adjacent channels
    Resolution 1 kHz
    Accuracy +/- 30 ppm
    Stability +/- 35 ppm
    Output Power 29 dBmv, attenuated in 5 steps, approximately 4 dB
    Compliance FCC Class B, RoHS, California energy standards
    Operating Temperature 32 to 122°F (0 to 50°C)
    Dimensions (W × H × D) 8.5 x 1.73 x 6" (216 x 62 x 153 mm)
    Weight 1.5 lb (0.68 kg)
    Packaging Info
    Box Dimensions (LxWxH) 16.0 x 11.0 x 4.0"
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