This is a legacy product

Technical support is available for this product. Availability of repair services should be verified with a technical support agent.

Replaced by:

232-ATSC + HDTV Tuner

Type: AV Tuners
Part Number: 5072-001
Size: 8.500 wide x 2.000 high x 8.000 deep
Weight: 1.940
Distribution: AV over RF
Released: May 2010

232-ATSC + Data Sheet
232-ATSC+ Manual
ATSC+ Firmware Pack 4.2

  • 232-ATSC + Front View
  • 232-ATSC + Back View

More about AV Tuners

Often times it can be useful to have a tuner in your AV installation. Not all displays can tune TV channels; video projectors and monitors do not have built-in TV tuners to receive off-air or cable TV signals. Tuners can also be used to monitor live camera feeds or over the air broadcasts. Presentation room switchers often need a dedicated tuner that can be routed to displays on demand. Contemporary Research has established a reputation for bringing superior tuner technology to the AV market.

About 232-ATSC + HDTV Tuner

The 232-ATSC+ HDTV Tuner is an integrator-friendly HDTV tuner, controllable 2-way RS-232 and discrete IR commands.

Full Description & Specifications

The 232-ATSC+ HDTV Tuner is an integrator-friendly HDTV tuner, controllable 2-way RS-232 and discrete IR commands. As a universal TV tuner, the 232-ATSC+ can receive ATSC, NTSC, and clear QAM cable channels from switchable Off-Air and Cable RF inputs.

Controllable via RS-232 or IR, up to two compact 232-ATSC+ tuners can fit within 2 or 1.5 rack spaces.

The tuner displays broadcasts through simultaneous HDMI, RGB/Component, and NTSC composite video or connections. Full-time audio is available from Dolby® 5.1/PCM digital HDMI, optical, and coax ports, as well as variable-level analog stereo audio outputs.

  • Tunes ATSC off-air, clear QAM cable, and analog channels
  • Always-active HDMI and composite video, as well as stereo, and digital coax and TOSlink optical audio ports
  • VGA or Component outputs switchable from front-panel settings or RS-232 control
  • Dolby® 5.1 or PCM/Variable PCM digital audio formats for digital audio ports and HDMI
  • Front-panel and onscreen menus for tuner setup and scanning, new buttons eliminate need for IR remote for setup
  • Supports dual Air/Cable tuning with optional RF switch
  • Analog and digital closed captioning
  • Upscales SD and analog channels
  • Rack-mountable in 1.5RU, two across
  • Full ASCII 2-way RS-232 commands, AMX, Crestron, and RTI modules avaialable, discrete IR commands
  • RS-232 can be daisy-chained to control up to 9 tuners from a single RS-232 port
  • Works with free Tuner Helper control panel/setup software, operates over RS-232 or Ethernet with IP-232 Interface
  • Field updatable for control and HD processing firmware
  • Green Machine - consumes less power than previous 232-ATSC, meets ROHS and California energy-saving standards

Distribution: AV over RF

Front Panel:
  • Display: Red LED Channel Display, dot separated major and minor channel numbers, dot at end indicates Off-Air tuning
  • IR: IR sensor
  • Control: Power , Menu, and Select buttons, navigation using Up and Down (Channel Up and Down) buttons
  • Left and Right (Volume Up and Down) buttons
  • LEDs: RS-232 RX (Yellow), RS-232 TX (Red)

Back Panel:
  • RF In: Air/Cable, ‘F’, female, 75 ohm impedance, -10 to 15 dBmV typical Supports dual Cable and Air tuning with optional RF-AB RF A-B Switch
  • AV Output: Simultaneous HDMI, RGB/Component, and video out - switchable RGB/Component. Simultaneous HDMI (PCM), digital coax and optical (AC-3 or PCM), stereo audio.
  • Video Out: RCA composite video output, 1V p-p at 75 ohm impedance Simultaneous 480i
  • Component Out: 3 RCA Y, Pr, Pb outputs (1080i/720p/480p/480i)
  • Digital Audio S/PDIF: Coax and TOSlink optical output, Dolby 5.1/PCM
  • Analog Audio Out: Stereo RCA audio, Mono, Stereo, or SAP, variable level
  • RGB Out: VGA RGBHV DB-15 female (1080i/720p/480p, 59.94 Hz)
  • HDMI: HDMI receptacle, Type A, HD video and digital audio (in PCM mode), version 1.3 (1080i/720p/480p), HDCP
  • RS-232 Control: DB-9 male, RS-232 data link to control system or PC, link up to 9 tuners, 300-19,200 baud (9600 default)
  • A/C (Air/Cable): 3.5 mm output to operate the optional RF-AB RF Switch , -10 to 15 DC typical
  • IR In: 3.5 mm stereo input for external IR sensor or wired IR (no carrier, discrete codes available)
  • Power In: 2.1mm coaxial jack (inside center conductor positive)
  • 1 A maximum, 11.5 to 15 VDC, 12 VDC typical
  • BTU:40

  • On-Screen: Displays on-screen analog and digital captioning on all video ports.
  • Captioning Data: HDMI, RGB, and Component ports don’t have the ability to carry captioning data.
    • Captioning data from both analog and digital channel is carried on Line 21 on the composite video port.

  • Frequency Range: NTSC, ATSC (8-VSB) and Clear QAM (cable) television 55.25 to 801.25 MHz
  • DTV Resolution: ATSC/QAM 1080i/720p/480p/480i
  • Tuning: Off-air 14-69 (NTSC and 8-VSB) and CATV 1-135 (Analog, 64QAM, 256QAM, 8-VSB)
  • Aspect Ratio: 4:3, 16:9 (Digital), 4:3, 16:9, Zoom (Analog channels)
  • Captioning: DTV and analog, set by program or customized for size, font and display attributes
  • Lock: Parental option for channels and/or rating