[time-nuts] Entry Level Systems Revisited
Michael J. Dyer
michael.dyer at digitaleragroup.com
Thu Dec 13 23:15:16 UTC 2007
I've been researching an entry-level system for my own learning and
experimentation. Back in May of 2006 there was a thread that posed the
question "What's a good entry-level time reference system?". At that time
there were several options suggested (partial list):
- A local frequency standard (HP 10811A, HP10544A, Efratom Rubidium
Standard)
- A frequency/time interval counter (HP 5334A/B, HP 5345A, HP
5335A with high-stability options, HPIB nice to have, 1.3 Ghz options nice
to have)
- GPS or other radio reference (Morotola M12+T or UT+ , Garmin
GPS-18 LVC)
- GPS to NTP converter if doing NTP
After a bit more searching in the archives I also ran across the Trimble
Thunderbolt (and newer Thunderbolt E). I'm thinking of the following:
- Skip the local frequency standard and opt for a high-stability
counter
- Trimble Thunderbolt or another GPS option
- Nice clock that I can drive with 1 PPS (suggestions please)
I would be very interested to see what type of entry-level system
suggestions there are after the question was first posed a year and a half
ago.
//MDYER
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