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Co-Phase/dual antenna tuning.

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Decided to install dual antennas.
What is the best/easiest way to tune. Read several different methods.

Method 1
Set SWR using 50ohm coax from radio all the way to 1 antenna. Tune to SWR of 1:1. Then adjust 2nd antenna the same way. Then install the Co-phase 75ohm coax to antennas.

Method 2
From radio to antennas with co-phase coax. Then adjust both antennas at the same time.

Method 3
From radio to antennas with co-phase coax. Disconnect 1 antenna and connect a dummy load to that side....

Co-Phase/dual antenna tuning.

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