[1000mp] Strange bahaviour on 80 meters
[email protected]
[email protected]
Thu, 25 Dec 2003 15:21:10 -0800
Thanks for the reply, see below.
On Thu, 25 Dec 2003 17:15:36 -0600 [email protected] wrote:
> >If the problem were with the input circuit one would expect
> >the amp input swr to remain constant even though the rig could
> >be fooled into full output by using the tuner. I suspect that
> >the MP is putting out out of band energy in 80 meters, thus giving
> >the poor swr indication. This is further confirmed by placing
> >an ICE 80 meter bandpass filter between rig and the amp.
>
> Have you tried moving from ANT A to ANT B <or vis versa>
> and see if the problem follows?
The problem is not affected by the antenna. We switched between
different ones with known swr characteristics, and the problem
was the same.
>
> What does the MP do into a dummy load? Same HIGH SWR?
Haven't had a chance to try that yet, but will.
> <Just trying to help isolate where/what the problem is here>
Appreciate the time and effort.
>
> Merry Christmas to all ...
>
> 73 Billy AA4NU
>
cheers, Paul - VA7NT ex VE7CQK - email: [email protected]
"Those who hear not the music. . . think the dancers mad."