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Quite by accident, I discovered that if I grip the mast below the ground plane and slide my hand up or down I can change the SWR. The closer I get to the bottom of the ground plane the lower the SWR. If I touch the ground plane the SWR drops to 1:1.

However....
If I take a jumper from the ground plane to the mast the SWR jumps way up

[QUOTE="W9WD, post: 142133"] Quite by accident, I discovered that if I grip the mast below the ground plane and slide my hand up or down I can change the SWR. The closer I get to the bottom of the ground plane the lower the SWR. If I touch the ground plane the SWR drops to 1:1. However.... If I take a jumper from the ground plane to the mast the SWR jumps way up [/QUOTE]

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