[time-nuts] GPSDO - was - oscillator choice question
chris at yipyap.com
chris at yipyap.com
Sun May 16 21:30:18 UTC 2010
Thanks for all of your kind encouragement.
I gave up on using the NC100's oscillator for my GPSDO home-lab freq
standard. I was able to find a 10811 oscillator on ebay by
purchasing a non-working 5328A counter with the correct option.
It was very inexpensive and the 10811 appears to be alive.
Now I am reading Time-nuts history and I see that
there is no consensus on which of the popular/published GPSDO
configurations is the best return on effort and expense.
That is rather disappointing.
Any comments on that before I just flip a coin?
Bob Camp wrote:
> Microwave radio suggests low spurs and often low phase noise. That's on top of the stability requirements.
> In terms of stability a good Z3801 will run rings around a garden variety Thunderbolt. Both are significantly better on phase noise than a "garden variety" OCXO. You will need a *very* good OCXO to get to the performance level of either one. The 10811 is probably the easiest thing to both identify and find. You see them selling anywhere from $100 to $200 depending on just how patient you are.
> On May 2, 2010, at 4:13 PM, chris at yipyap.com wrote:
>> Bob asks a reasonable question:
>>> What kind of accuracy are you trying to obtain?
>> I would like to end up with something that is usable
>> on a home electronics workbench. Something like a
>> Z3801. Something I can use if I ever try to do some
>> goofing around with microwave radio operation.
>> I'm not serious enough to want to spend hundreds
>> on a working unit. On the other hand, lashing up
>> something that works would count toward my
>> hobby/education so then it is ok to spend a little
>> bit of money.
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