The old rig does drift some, getting better the longer it is on. The
problem with the PSK reception seems to be limited to 20 meters. On a long
winded ragchew with my slow typing, I have had a few people tell me that I
drift a wee bit. On 10, 15, or 40 meters I am not having this trouble.
The waterfall line on 20 looks like a snake and it is almost impossible to
track an incoming signal. This problem comes and goes, I can't really say
if it is heat related although I think it does do better when the rig has
been on for a couple of hours.
KM4FO, Dwight
On Mon, Jan 19, 2015 at 4:31 PM, Mike Bryce <prosolar@sssnet.com> wrote:
> Like, Dave, I don’t know if I’d do PSK with the corsair, but that being
> said, the only thing that could make a change in freq is the PTO.
>
> have you run PSK on another band? It’s possible the PTO is drifting a
> hair and you’re seeing it on the computer screen, but not enough to should
> up on the radio’s freq display.
>
>
> Mike Bryce, WB8VGE
> the heathkit shop
> SunLight energy systems
> J e e p
> o|||||||o
>
>
>
>
>
>
> > On Jan 19, 2015, at 5:05 PM, Dave Edwards <kd2e@comcast.net> wrote:
> >
> > I don't think I would do PSK with a Corsair, but...if it gets funny even
> after warming up for an hour or so...then try it again with a fan on the
> output heat sinks.
> > ...Dave
> >
> > On 1/19/15 4:43 PM, Dwight Orten wrote:
> >> My I been working PSK with my old Corsair and I am starting to have
> trouble
> >> on 20 meters. Watching the waterfall, the incoming signal drifts off
> and
> >> my software can,t decode it. Sometimes it comes back, sometimes I have
> to
> >> chase the signal. I don't know if it is doing the same on transmit.
> The
> >> frequency readout is not showing any change when this happens. On all
> >> other bands the waterfall lines are straight as an arrow and no trouble
> >> coping. The PTO has never been rebuilt, but it seems to me if that was
> the
> >> problem it would be on all bands. Any thoughts, anyone?
> >> KM4FO Dwight
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