How to convert a CB antenna to 2m

Written by adam quinn
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How to convert a CB antenna to 2m
Convert your old CB antenna for use on the 2-meter band. (Thinkstock Images/Comstock/Getty Images)

If you're an amateur radio enthusiast and recently purchased a 2-meter VHF-band ham radio, you can convert your old CB antenna for use on this radio frequency. A CB antenna, built for the 11-meter band is typically over 100 inches long. A VHF ham radio antenna, in contrast, is about 20 inches long. Once you cut your CB antenna to a VHF length, it will no longer be effective for CB use. You will, however, have an inexpensive and high-efficiency VHF antenna, rugged enough to be mounted outdoors.

Skill level:
Moderately Easy

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Things you need

  • Tape measure
  • Hacksaw
  • Metal file
  • Electrical tape

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  1. 1

    Measure and mark a point 19-1/2 inches from the base of the CB antenna.

  2. 2

    Cut through the CB antenna at this mark, using a hacksaw.

  3. 3

    File the sharp edges from the new tip of the antenna. Wrap the tip of the antenna with electrical tape to seal out moisture.

  4. 4

    Connect the antenna's coaxial cable to the external antenna jack on your 2 meter radio receiver.

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