A hearty two, to this on psk. CocoaModem on the Mac implements AFC, which masks
drifting- both the reciever and the transmitter.
J
-----Original Message-----
From: "Martin AA6E" <aa6e@ewing.homedns.org>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: 1/30/07 3:25 PM
Subject: Re: [TenTec] Orion/O2 Drift Problem-who is interested in a fix?
The Orion is just fine for PSK31 as far as I've ever experienced. That
is, as long as you fine tune the signal - with the computer or using the
VFO. If you were only allowed to listen on a spot frequency (no
tuning), then the accuracy and drift of the VFO would be a problem on
the higher bands.
FWIW, my old TS-520S works quite well on PSK31, after warm-up!
The reason I would like lower drift and higher accuracy is that
sometimes I want to measure frequencies accurately. Secondarily, it's
nice to be able to dial up a net accurately the first time. (But what's
the point of being more accurate than everyone else on the net?)
Finally, having paid for a premium rig with 1 Hz dial resolution, I'd
like an option for a better osc. or external reference.
73 Martin AA6E
Dave Heil wrote:
> Ken N9VV wrote:
>> PSK31, Olivia, and other digi modes DEPEND on stable signals on both
>> ends. Old time boat anchors are not generally used on digi modes due to
>> their drift and instability.
>> Ken N9VV
>
> If the drift takes hours, why does that present a problem. When is the
> last time that you had a PSK31 QSO which lasted for hours?
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