I think you are correct, Gary. I forgot to put my ICE RF
Limiter/Arrestor in there until after I wrote that note. Believe it or
not, the problem went away! I don't understand it, but it seems to be
that RF current is/was entering the ICOM Pro II through the beverage and
affecting the amp--It wasn't the swr on the xmtr that went up, it was on
the Alpha '87a, which faulted right away. ( I wish I knew how to know it
faults because it is behind me and I have the headphones on most of the
Anyway, you were right and I *think* that solved the problem.
Appreciate all the comments!
Gary Nichols wrote:
> P. The RX input (beverage input) is active during transmit!!! There are
> many shared circuits in a transceiver and the radio thinks the swr is high
> and causes foldback to happen. You need to use a FES (front-end-saver) to
> disconnect your beverage during transmit before you burn out the front end
> of your radio. Visit www.radio-ware.com and look at kd9sv products (FES)
> for a description of one solution...this product has saved the life of many
> many radios. 73, de gary, kd9sv (you will probably hear from many others
> who faced the same problem)
> -----Original Message-----
> From: firstname.lastname@example.org [mailto:email@example.com]
> On Behalf Of WY7I
> Sent: Monday, September 28, 2009 10:00 PM
> To: firstname.lastname@example.org
> Subject: Topband: Here's one for ya
> If I xmt on the inverted L and receive on it, the SWR is 1:1.
> If I use the beverage to recieve, then the SWR is too high.
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