J Pole Antenna Length Calculator

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4 thoughts on “J Pole Antenna Length Calculator”

  1. I want to make a Jpole antenna for the 222MHz band! There are lots of antennas for all the bands but have not seen anything for this band. There must be some but not found them. I am disabled retired living off SS. That makes Ham radio hard to use. I am hoping to be able to make an antenna for the 222MHz band to use with my new Anytone D578 radio. Thank you for any help you can give me.

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