[time-nuts] GPSDO Component Selection

Don Oconnor eGunk at wowway.com
Sun Sep 9 13:18:42 UTC 2012


Hello,

 

I would like to design and build a microcontroller based GPSDO. And I have a couple of questions some of you may be able to answer.

 

 

1.         I am going to use Trimble SMT GPS timing module but I'm curious. Does a GPS timing receiver produce a more precise 1 PPS output than a standard GPS tracking receiver in a static location? Or does it just produce a 1 PPS signal that is more accurate to GPS time? 

 

 

2.         I have seen many DOCOXs' listed on eBay produced by Morion Inc St Petersburg Russia. This includes models MV89 and MV180 with manufacture dates in 2008. All of the Ox's' were removed from equipment. I don't know anything about Morion's reputation. The specifications are very good, but do they live up to their data sheet, are they reliable and stable? 

 

What DOCXOs' would you recommend? 

 

Thanks in advance

 

Don O'Connor


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