How to Make a Balun With RG58 Coax Cable

Written by marshal m. rosenthal
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How to Make a Balun With RG58 Coax Cable
(Hemera Technologies/ Images)

A balun is a type of connector using the 300 ohm frequency that is designed to attach to a television antenna input. You can make a balun connector compatible with RG58 coaxial cable by wiring it to the cable. A few supplies from a hardware store will be needed, as will some tools most households already have on hand.

Skill level:
Moderately Easy

Things you need

  • Ruler
  • Utility knife
  • 300 ohm balun adaptor
  • Phillips screwdriver
  • Electrical tape

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  1. 1

    Slit 4 inches in on the outer insulation from one end of the RG58 coaxial cable with the blade of a utility knife. Peel the outer insulation back with your fingers. Cut the outer insulation off the cable with the blade of the utility knife and dispose of it.

  2. 2

    Push the wiring now revealed on the cable back until it meets the outer insulation that was not cut. Twirl the wiring between your fingers to make it into a rod.

  3. 3

    Slit a half inch in on the insulation covering the inner wire with the blade of the utility knife. Pull the insulation off and dispose of it.

  4. 4

    Partially unscrew the two screws on the 300 ohm balun adaptor with the Phillips screwdriver.

  5. 5

    Wrap the exposed end of the inner wire on the cable around one of the two screws. Wrap the rod from the cable around the other screw. Screw the two screws back in.

  6. 6

    Wrap strips of electrical tape around the cable where the outer insulation was before as insulation.

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