[time-nuts] Good GPSDO on eBay?

[bownes]

To paraphrase a few other folks, taking on the task of building your own, even using the VE2ZAZ board as a basis is a very educational experience. It will teach you an enormous amount. There are lessons in control systems, phase and frequency locked loops, oven controllers, phase and frequency measurement, and doubtless lots of things I've overlooked. 

Well worth the effort. 

> On Jul 9, 2016, at 23:06, Bob Stewart <bob at evoria.net> wrote:
> 
> But, as a starter GPSDO, probably anything is good.  Frequency accuracy, even if a fraction of a Hz off, is all you're looking for at first.  I bought one of Bert Zauhar's (VE2ZAZ) circuit boards and chips for my first one.  It was a good experience.  And when I was done, I had a GPSDO that was as good as most of what you find on ebay in the bargain basement, but at a much lower cost.  But then you need a case, and something to compare it to, and something even better, and then you're a time-nut.
> 
> But 
> 
> 
> At 04:40 PM 7/9/2016, Richard Mogford wrote:
>> This looks like a good beginner's GPSDO on eBay: 172148560746
>> 
>> "This is GPS Disciplined Clock made with trimble GPSDO Board.Full 
>> tested by Agilent 53132A with US-012 option and Ex-ref from trimble 
>> thunderbolt GPSDO."
>> 
>> 
>>       The seller says it has a sine wave output and is accurate from
>>       10e-11 to 10e-12.
>> 
>> Any thoughts?
>> 
>> Richard
>> 
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