[1000mp] Power supply prob??

[Mike Gilmer]

Do you have another antenna, or a dummy load to try?

How close is the new antenna to the shack?  If it is
really close it could be directly coupling to the
radio. If you turn the beam, does the problem
change/diminish/go away?

If the antenna is fairly far from the shack, perhaps
the match at the antenna is not that good and the coax
shield is "hot" carrying RF back to the shack. Can you
try a choke on the coax near the antenna's feedpoint?

Mike N2MG

--- Scott Manthe <n9aa at arrl.net> wrote:
> I would guess that you're getting RF into the power
> supply. 
> 
> ----- Jim, K6UUW wrote: 
> > After putting up  new beam, my MK V starting
> > cutting in and out.  I 
> > turned it off and let it rest and tried again;
> > same results.  I noticed 
> > the power supply power light, turning on and then
> > dimming off.  It has 
> > been hot in the shack, so I tried it last night in
> > cooler wx and it did 
> > the same thing right during a PSK QSO.
> > Anyone have the same problem?  I did find the
> > schematic on the net, but 
> > will see what comments I get before tearing into
> > it.