John,
I used to own a Scout and never had any problems with audio gain or SWR, but
is your Buddipole less than 2:1 SWR with no tuner? I'm assuming your other
rigs must have have auto-tuners that can tune out an antenna mis-match. The
MFJ tuner could be the problem. Do you ever operate without it? You should
be able to get the Buddipole to a low enough SWR that the tuner isn't really
necessary. The Buddipole user group website has good info on settings for
any configuration. Ten-Tec rigs seem to have problems with RF feedback if
you have grounding issues or a bad antenna match. Does the Scout show a low
SWR in Tune mode with no tuner? Do you get full output key down on CW? I
have Buddipole and get a pretty decent SWR if I spend time with an antenna
analyzer to get the best coil taps and whip lengths.
You might also try another mike, in case your mike cable has a bad ground. I
did once have a problem due to a Ten-Tec mike with my Scout. I hope some of
these suggestions help. Good luck.
Phil N3ZP
----- Original Message -----
From: "John Kountz" <John@T6EE.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Thursday, June 26, 2008 9:22 PM
Subject: [TenTec] 555 Scout HELP
Fellow Ten Tec People:
Perhaps someone has had a similar problem (and found a solution).
Mic gain is very sensitive and, if slightly above 8 o'clock , causes the
transmitter to go into slow oscillation.
And, using an MFJ antenna tuner, it is impossible to get anywhere near a
rational SWR on 20 meters. The antenna being a Buddipole set-up for 20
and regularly used with a 706 mk IIG or an FT897D with neither having
any trouble going below an SWR of 1.2.
An adequate ground was provided. The Budddipole is at a nominal 12 feet
above a deck which is about 400 feet above and looks out at the Pacific
Ocean.
I welcome any questions, experiences, thoughts, ideas, solutions are
absolutely.
73 de John Kountz, KE6GFF/T6EE
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