It probably wouldn't even need an OCXO, just a really stable TCXO like the
20 MHz unit Kenwood uses. I have one in my TS-870 and even though it does
not run when the rig is turned off, it is still rock stable and extremely
close on frequency. Total warm-up drift is in the order of 1 Hz at 15 MHz.
Ron N6IE
www.N6IE.com
(Formerly N6AHA)
----- Original Message -----
From: "Martin AA6E" <aa6e@ewing.homedns.org>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Tuesday, January 30, 2007 6:30 AM
Subject: Re: [TenTec] Orion/O2 Drift Problem-who is interested in a fix?
What's "wrong" is that they haven't done it. If TT offered a good OCXO
option at a reasonable price, that would be fine. The TCXO they use is
disappointing compared some other rigs - like the IC-7000.
If INRAD would offer a < 1 ppm product at $50, I would buy. If it was
$100, maybe...
If you want warm-up stability, you want the oven to be energized
continuously, even when the Orion power is off, e.g., from a stand-by
power source or from Orion power ahead of the power switch. And of
course, a stable OCXO also needs to be accurate.
Even better would be an option to lock to an external 10 MHz standard,
which I already have on hand. This would appeal especially to
UHF/microwave operators. It is easy to do in principle, but phase noise
could be a problem.
73 Martin AA6E
George wrote:
What's wrong with Ten Tec addressing this drift problem in the Orion's???
George W2YJ
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