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Exactly why do some SWR meters give a changing reading depending on the length of coax used to connect to an antenna?

Other answers are confused and confusing. There are some Wheatstone bridge based "SWR" indicators popular among QRP kits. Those are not really SWR meters, but they just measure closeness to ...
Ryuji AB1WX's user avatar
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What is the difference between antenna input impedance and its radiation resistance?

Andrew's answer is reasonable for OP question 1. No one gave a good answer to OP's questions 2 and 3. As Andrew said, radiation resistance is a concept that relates to the antenna's far-field ...
Ryuji AB1WX's user avatar
  • 1,153

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