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Homer -

 

your antenna has excellent SWR because the coil is located above the top of the roof of your mobile. A loaded antenna (one with a coil) radiates from the top of the coil. The stinger is there ONLY to provide matching to as close to 1:1 as possible. Increasing the wire size (or surface area) of the coil will increase the bandwidth and keep the swr low over a wider freq range. Your antenna is excellent in this respect. Increasing the diameter of the stinger will also increase your 2:1 bandwidth, which is a good thing. Disregard the Bullsh-- posts from persons in this forum who don't have a clue.

 

- 399