If the SWR on 40 is higher than on 1, the vertical mast is too long. You do need to have some sort of ground plane, short stubs or up to 8 feet, again, they will affect the SWR too so start with small changes.
If the SWR on 40 is higher than on 1, the vertical mast is too long. You do need to have some sort of ground plane, short stubs or up to 8 feet, again, they will affect the SWR too so start with small changes.
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