[time-nuts] Entry Level Systems Revisited

WB6BNQ wb6bnq at cox.net
Thu Dec 13 18:25:24 EST 2007


Hi Michael,

Well, entry level to me means the least expensive way to have a house standard.
So I doubt the basic premises have changed much.

Depending upon one's means, a high stability "fancy" counter may not be in the
offering.  Therefore, some "decent" (hopefully cheap) oscillator locked to the
GPS provides the basics allowing for very inexpensive counters and other
inexpensive devices to provide a degree of comfort.

Bill....WB6BNQ


"Michael J. Dyer" wrote:

> 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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