[TowerTalk] Force 12 Sigma 180 80M dipole

[K7LXC at aol.com]

Howdy, TowerTalkians --
 
    I'm installing one of these antennas and have run  into a problem that I 
need some input on. The antenna natural resonant frequency  is 3.500, it 
should be about 3.800. The manual is pretty ambiguous (nothing new  there) about 
the coils; it looks like the outer end connects to a  thru-the-element bolt. A 
similar one I installed was not fixed and used U-bolts  to vary the length of 
the coil along the element. It seems like we should try  that on this antenna. 
Gary, K9RX, has one and used the attachment to the  thru-bolt successfully so 
now I'm confused. 
 
    Also, when I have the relay box, hairpin coil and  balun hooked up, I get 
infinite SWR which is a typically a feedline problem.  Hooking the balun 
directly to the feedpoint works as it should. More confusion.  :-( 
 
    TIA for any help.
 
Cheers,
Steve    K7LXC
TOWER TECH 
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