[TenTec] RF problem

Richard Detweiler rdetweil at hotmail.com
Fri Aug 5 11:41:53 EDT 2005


I've had a similar problem,  The headphone speaker element was the issue 
with mine,  it was picking up the RF like an antenna,  try some ferrit bead 
on the speaker line,  I ultimately decided to change the headphones and that 
solved the problem.  There could be a feedback happening in the audio 
amplifier which is why it doesn't happen on the kenwood.

My antenna is a vertical, somwhate close to the radio (30 feet) ,  my radio 
is on the 2nd floor.

Have to take real care in this situation, a really good ground system is 
required in my situation,  Then I use the double sheilded LMR400 to insure 
all the signal goes to the antenna,  then I use line isolators at the ground 
rod next to the antenna antenna, at the ground rod next to the house, and 
then one after the amplifier.  It may be over kill, but it pretty much 
assures all the signal is at the antenna.

Best wishes,

>From: "Vince Santis" <vsantis at earthlink.net>
>Reply-To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
>To: "Tentec" <tentec at contesting.com>
>Subject: [TenTec] RF problem
>Date: Fri, 5 Aug 2005 11:31:16 -0400
>I hear Rf in my headphones on 20 meters only. I'm running an Orion into
>an ALS 600 solid state amplifier. The antenna is a Gap Titan DX located
>about 40 ft. from the shack. I don't recall this problem with my TS-570.
>Any help would be appreciated.
>Vince Santis, N1VS
>Winsted, CT 06098
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