Comcast

Menu
Support XFINITY TV Connect a Standard Definition Digital Transport Adapter to an HDTV

Introduction

Want to use your Standard Definition Digital Transport Adapter (SD DTA) to receive stunning HD broadcasts on your HDTV? Here’s everything you need to know.

Connect Your Standard Definition Digital Transport Adapter (SD DTA)

To connect your SD DTA to your HDTV and continue receiving broadcast HD channels, you’ll need a splitter, five coaxial cables, and an A/B switch (available for purchase at your local retailer). Note: If you have an HD DTA (not available in all areas), you will not need an A/B switch.

  1. Connect one end of a coaxial cable to the cable wall outlet.
  2. Connect the other end of that coaxial cable to the IN of a splitter.
  3. Connect a coaxial wire from one OUT of the splitter to one IN of the A/B switch.
  4. Connect a coaxial wire from the other OUT of the splitter to the IN of the SD DTA.
  5. Connect a coaxial wire from the OUT of the SD DTA to the open IN of the A/B switch.
  6. Connect a coaxial wire from the OUT of the A/B switch to the IN of the television.

Note
: If your HDTV has two RF inputs, you do not need an A/B switch – you can connect the outputs of the splitter directly to the two RF inputs on your TV.
Diagram shows relationship of various components to connect a digital adapter to an HDTV.

Watching Programs

By flipping the A/B switch, you will view either:

  • Limited Basic and broadcast HD channels.
  • Expanded basic/starter channels in digital format.

If you have connected your splitter directly to your HDTV, you will need to select alternate inputs (RF1 or RF2) on your TV instead of flipping the A/B switch.

Having Trouble?

  • Make sure your TV and SD DTA are both set to channel 3 unless instructed otherwise.
  • Keep your SD DTA on at all times. Use your Comcast remote control to turn your TV on or off. If your remote control isn’t working, make sure its batteries are fresh and that it’s been programmed correctly. (You can also find programming steps in the Comcast DTA Remote Guide).
  • The SD DTA supports a screen aspect ratio of 4:3; your picture will not fill the screen of a widescreen television. You cannot adjust the aspect ratio on the SD DTA, but you may be able to "stretch" your picture in your television’s Settings menu. To receive HD programming, you will need an HD DTA (not available in all markets) or upgrade to a digital cable box or HD cable box (available at an additional cost).

Find this article at:

http://customer.comcast.com/help-and-support/cable-tv/connecting-digital-adapter-to-hdtv/