[TenTec] frequency stabilization (Orion)

[Martin, AA6E]

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 at gmail.com>
> To: <tentec at 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 at gmail.com
> http://blog.aa6e.net
> 


-- 
martin.ewing at gmail.com
http://blog.aa6e.net