Are you sure its not a broken coax cable ... Is there a common jumper
cable that you have been using?
w9Ray
Will M0GYZ wrote:
> Hi All
>
> Got a weird one for you.
>
> I have Dressler D200S VHF Linear Amp which was given to me for contesting.
> There has always been a strange problem which i originally thought was a
> sticky relay
> However after a while of looking at it. Its as if the amp wont Transmit
> without it being on a really flat surface which caused problems for me
> at the recent 144/432mhz contest
> I can't figure out why it would require such a dead flat surface before
> the needle moves and im putting power out.
>
> It was working ok apart from this at home as i was putting out 120w with
> 5w drive provided I found the right spot for it but when i took it out
> to the contest it just didn't want to Transmit at all and when it did
> the power just decreased over 3-10 seconds and I couldn't get 120w out
> of it max.
>
> My thoughts are thats it might be a dry joint but the guy who had it
> before me didn't ever report it had a problem but unforuntly he died a
> couple of years ago.
> So it only Transmits when its in a spot it likes after moving around my
> windowsill
>
> So any thoughts ?
>
> Thanks
> Will M0GYZ
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>
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