How to wire a TV antenna to an FM stereo

Written by g.k. bayne
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Wiring a TV antenna to a FM stereo is a great way to receive signals from all of your local and FM stations, and some from far away.

Skill level:

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Things you need

  • Wire strippers
  • Screwdrivers (Phillips-head and slotted)
  • 75-ohm-to-300-ohm matching transformer
  • 75-ohm splitter
  • Premade 75-ohm cable leads
  • 300-ohm antenna wire

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  1. 1

    Determine what type of wire you have coming from your TV antenna. If the wire is a flat cable with two wire leads on either side, this a 300-ohm antenna connection. If it is a round cable, then you have a 75-ohm system.

  2. 2

    Connecting either one is an easy task. If you have the 300-ohm system, it will be simple to strip another length of the 300-ohm flat cable approximately 1" from both ends. Using your screwdriver, attach these two leads to the spot where the antenna connects to the back of the stereo. There may be several screws for antennas. Select the pair that is identified as 300 ohm and attach. Remove the antenna connection from the back of your TV and twist the pairs of wire together, keeping each side separate. Reattach to the TV.

  3. 3

    Wiring the 75-ohm cable is a little more involved, and requires a matching transformer to increase the resistance for the stereo. The 75-ohm-to 300-ohm transformer can be purchased at any hardware or electronics store. Simply screw the cable end into the transformer receptacle and attach the 300-ohm forked ends onto the appropriate screws of the stereo antenna connection. Follow Step 4 for attaching a cable splitter.

  4. 4

    The connection to some stereos may have the cable plug already installed on the rear of the stereo tuner. In this case, you will need a cable antenna splitter and two premade cable leads to attach to both the TV and the stereo. The splitter will be clearly identified for “Antenna In” and “Out 1,” “Out 2”. No tools are required.

Tips and warnings

  • Check the antenna connections before you purchase any components.
  • Make a list of questions and ask them before you buy, as most electronic components are non-returnable.
  • Never wire an antenna during a lightning storm.

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