[time-nuts] Designing and building an OCXO and GPSDO

[SAIDJACK at aol.com]

Yup, I agree.
 
I wish I did have one of those TSC5120A's!
 
Or "at least" an E5052A/B.
 
bye,
Said
 
 
In a message dated 8/13/2008 16:03:00 Pacific Daylight Time,  
bruce.griffiths at xtra.co.nz writes:

SAIDJACK at aol.com wrote:
>    Thanks  Bruce,
>
>
>
>    it would be interesting to  see how the different topologies affect
>    phase noise and  stability etc, and what kind of performance can be
>     achieved.
>
>
>
>     bye,
>
>    Said
>
>
>    
Said

One way to evaluate the merits of various oscillator circuits  would be 
to build an example of each and then measure their phase noise  and ADEV.

To keep the number of variables and costs down all  oscillators should 
use the same 10MHz fundamental crystal.
The  oscillators should not be enclosed in their own oven, however an 
enclosure  with a long thermal time constant can be used.
The oscillator output should  be +7dBm into 50 ohms.
No EFC and probably no trimmer cap (however this  requires that a 
TSC5120A or similar be used to measure the ADEVand phase  noise).
Power supply should be standardised at  +12V.


Bruce

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