To answer my own question: I was probably thinking of the CT1DMK
reflock boards. See http://gref.cfn.ist.utl.pt/cupido/reflock.html .
Orion's TCXO is a Siward TXO32 series part, as close as I can tell.
It does not seem to support voltage trimming.
73 Martin AA6E
> ----- Original Message -----
> From: "Martin, AA6E" <martin.ewing@gmail.com>
> To: <tentec@contesting.com>
> Sent: Wednesday, July 27, 2005 4:53 PM
> Subject: [TenTec] frequency stabilization (Orion)
>
>
> Now for something completely different.
>
> I've been trying to tweak my Orion TCXO to get it more accurate after
> warmup. I have had some success, getting it to come within 0.4 ppm (4
> Hz at 10 MHz) or so, at least until the seasons change. This should
> be good enough for mortals like me, but can we do better?
>
> There was a lot of discussion on this reflector a couple of years ago
> about stability. No need to rehash that. I can see that one could
> make improvements by cooling/ventilating the synthesizer compartment
> better and/or by ovenizing the TCXO.
>
> I am wondering if anyone has succeeded in slaving the Orion to an
> external oscillator (GPS or otherwise). Is there a write-up anywhere?
>
> I am having a senior moment. I recall having read about a more or
> less universal frequency stabilization module that can lock to (or
> provide an error signal) for your oscillator at say 44.55 MHz against
> your 10 MHz standard. This was not too long ago, but I cannot find
> the reference any more. Sounds like a QEX thing. Anybody have a
> pointer?
>
> TIA
> 73 Martin AA6E
> --
> martin.ewing@gmail.com
> http://blog.aa6e.net
>
--
martin.ewing@gmail.com
http://blog.aa6e.net
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|