I don't think there's a difference between one conductor and another
except for a slight difference in efficiency. The problem with a JPole
is that there are three separate bits that can need adjustment (the
length of the radiator, the length of the quarter-wave stub, and the
position of the feedpoint on that stub) and if you don't adjust the
right one, you'll get poor results.
On 4/21/2020 2:52 PM, ralph phillips via BVARC wrote:
Having problems with my home brew 440 mhm jpole...will not tune better
than a SWR 1.9. Books and articles no help. Will velocity factor or
resistance change dimensions for steel vs aluminum??
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