102" antenna fail

Thought about doin something along those lines but im never sittin more than a cpl hrs,unless im sleeping..

 

reminds me of the guy here in nj that works for irt and puts a beam antenna up on the truck on his off duty time.

 

They call that a BINGO those numbers.

 

At what frequency was it resonant when you had it mounted there? If you couldn't find a resonant frequency that tells me that you had a ground issue that needed to be looked at.

 

An antenna that is too long is inductive and needs capacitance to bring it into resonance (where capacitive reactance exactly cancels the inductive reactance, leaving only resistance).

An antenna that is too short is capacitive so it needs inductance to bring it into resonance.
I thought you said the antenna was too long?

 

I'd say that reactance has something to do with how the antenna is mounted and something to do with the RF ground potential of your chosen mounting location. I'm sure there's a way to make it work the way you had it mounted before.

 

I think its partly what its mounted to and the length of the coax..
Lililil you didnt say where it was reso ate,not where swr is..
Your resonance is - 7. Something...Maybe try without the 10" shaft and see..