[TowerTalk] F12 80M beam

n8de at thepoint.net n8de at thepoint.net
Fri Apr 18 11:14:40 EDT 2008


Steve,
Have you checked to make certain there is no low impedance path from  
the element to the boom?  There should be infinite resistance, as they  
are insulated from each other.
Any possibility something is 'too tight' and there is a short?
Don
N8DE

Quoting K7LXC at aol.com:

> Howdy, TowerTalkians --
>
>     I'm installing a 2L F12 80M beam. I'm not sure of  the exact nomenclature
> - it was a semi-custom order - but it uses the element  coils close to the
> boom.
>
>     I can't find a resonance anywhere (following the  manual instructions). I
> went directly to the feedpoint and skipped the balun,  relays, etc. and I've
> still got infinite SWR everywhere. Usually that's an  indication of   
> a feedline
> problem but I've got my MFJ hooked directly to the  feedpoint and still no
> dip anywhere. Not even a little one.
>
>     The elements have continuity and it's a pretty  simple element; just an
> insulated center feed piece, a coil and the rest of  the element, so  
>  I'm pretty
> flummoxed why I can't see a dip. I've changed the  coil length with still
> nothing. What am I missing here?!?
>
>     ANY help appreciate.
>
> Cheers,
> Steve     K7LXC
> TOWER TECH
> Cell: 206-890-4188
>
> PS - Tom, N6BT, has been sort of helpful and there aren't any nearby AM
> stations to cause problems with the MFJ.
>
>
>
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