Sounds like the crystal-controlled heterodyne oscillator is dropping
out. Check the OSC-MIXER board for cold solder joints or a bad or loose
crystal.
73, Bob WB2VUF
Stephan Schmieg wrote:
>
> Hi folks,
>
> unfortunally I'm in trouble with my Corsair II so I have to ask you for
> information how to solve these problems.
>
> My working conditions are: TEN-TEC Corsair II with matching PS (TT 962),
> running 80 watts into a Cushcraft R5 vertical up the roof. This
> configuration does run perfectly on almost all bands but 17m (18 MHz).
> There, it is not even necessary to transmit to start the following phenomen:
> by switching to 17m, the display starts to jump around with the frequency,
> it's really making funny things. And if I try to transmit, the PS will
> switch of the complete station immediatly, even the SWR is absolutely
> perfect (1:1.1). This phenomen did also occur with the TT 961 PS which was
> replaced by the 962 last August.
>
> Is there anything I can do to get rid of this penomen?
>
> 73 es mni dx de Stephan, DL6RDR
>
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