[TowerTalk] Liberal Arts Question on Dipole Antennas

Tom Osborne w7why at verizon.net
Thu Jun 1 20:28:08 EDT 2006


>>  Is there an interaction between the tower...the 80 meter antenna...the 
>> Vee to the east?
>
>  Is the coax bad?  IT has been up there for quite some time and it was 
> used at another location before I put it up here.

Hi Lee

I think if you are not using a balun, the length of coax will make a big 
difference in the SWR. You might try adding a chunk of coax and see if it 
changes the antenna.  I have a couple of antennas here that I use that 
method to tune.  They were alright at the base of the vertical, but in the 
shack, the SWR was higher.  Added about 10-15 feet of coax and brought all 
back into spec.  Yes, I know, that is not the way to do it.  73
Tom W7WHY 



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