FW: [Elecraft] NOT de-Q ?

Thu Jul 18 12:30:01 2002

-----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Steven Gibbs
> 
> My question is this:  what is the trade-up when crystals are
> NOT de-Qed in parallel?  Better temperature characteristics?  
> Or better stability?  Less phase noise inherent in the 
> crystal oscillator itself (I'm not talking about PLL phase 
> noise) - and would any benefit in less crystal phase noise 
> still be masked by PLL phase noise?  Should I have continued 
> to operate with just one PLL reference crystal?
>

I found the following link with some experiments on pulling range and
drift for the parallel crystal oscillator called the Super VXO:
http://www.qsl.net/7n3wvm/expt-vxo.html (skip the first Japanese part).
Maybe it is of interest?

73 Sverre

Sverre Holm, LA3ZA
Asker, Norway (59.8N, 10.4E)
---------------------------------
www.qsl.net/la3za