> Remember that the F12 antennas have elements which are insulated from
> the boom. I wouldn't be surprised if that made for a less-effective
> top-loading effect.
......and worse yet they can arc across the insulators. The
elements need to be electrically grounded to the boom at the shunt-
feed frequency in many cases to avoid arcing.
73, Tom W8JI
W8JI@contesting.com
________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
-----------------------------------------------------------------------
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|