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aanper edited this page Sep 22, 2019
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Welcome to the awesome-radio wiki!
SWR, or Standing Wave Ratio is a measurement of efficiency when connecting your antenna to your radio.
Optimum ratio is 1:1, although you'll probably end up with 1.3:1 or so. Anything higher than 2:1 should be considered a no-no since it can damage your radio and give poor transmission. Read up on how to tune SWR.