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2006Video Assist and Video Accessories forum

Impedance rating and cable compatibility for CIT Shark Fin antennas

20 years old. Gear and prices may have changed since.

What the thread found

  • The CIT Ultra-Ant antenna has a specified impedance of 75 ohms according to manufacturer specifications.
  • Users have successfully operated 75 ohm antennas with 50 ohm cables without reported problems.
  • Quad shield coaxial cable can be used to construct antenna cables for this antenna model.

Depends on

  • The successful use of 50 ohm cables with a 75 ohm antenna is anecdotal experience rather than a tested recommendation.
  • The discussion does not address potential signal quality degradation from impedance mismatch.
  • No technical analysis of why mismatched impedance caused no observable problems.
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