[TenTec] 555 Scout HELP

[Dr. Gerald N. Johnson]

On Thu, 2008-06-26 at 18:22 -0700, John Kountz wrote:
> 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.

Sounds like the PC board grounds need to be tightened by tightening all
the PC board mounting screws.
> 
> 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.

The tuned antenna presents a narrow band matched load. This trouble
sounds like the Scout has some spurious outputs at a non trivial level. 
> 
> 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

73, Jerry, K0CQ