There was a discussion here a while ago about synchronizing radio
telescopes that
were separated by some miles. The 1PPS from GPS was suggested as a
possibility.
I am working on a project to do location by triangulation that uses the
1PPS signal.
I would like to get better than the +-10 nS that the better receivers
provide.
Pete.
On 12/18/2016 6:16 PM, Bob Stewart wrote:
One thing I've never really understood is who actually uses the high-quality
1PPS output from a GPSDO. I have spent a lot of time, effort, and money on
developing my GPSDO without a whole of thought to the user base. It was just a
quest for the best result I could obtain with a particular technology. The
frequency standard users was a no brainer. Everyone who wants a frequency
standard eventually understands they need to get a GPSDO, or an Rb, or a Cs.
And that's all I thought I had: a good frequency standard. And then Tom
prodded me a bit and showed me the shortcomings of what I was doing, and I did
something about it. So, if an NTP user can get his time fix directly from a
noisy receiver, who actually needs a time-accurate, low jitter 1PPS pulse?
Bob - AE6RV
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GFS GPSDO list:
groups.yahoo.com/neo/groups/GFS-GPSDOs/info
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