On 1/26/19 10:43 AM, Bob Albert via time-nuts wrote:
Dave, thanks for the info. I am, as I have said, money limited to the point
where most solutions won't work for me.
My counter is an HP 5328A I belive. Not the top of the line but with care it
can do a decent job. It's oscillator is the standard oven job. When I got it,
it was almost spot on but it's been a while and I'd like to reset or at least
recheck it. It's good enough that it can watch other oven oscillators drift,
such as the one in my 8657B generator. I mean, who is crazy enough to sit for
hours watching a display progress more and more slowly toward some monte carlo
frequency?
Anyway it's all in fun for me and I have no real need for this precision. And
I know how close my transceiver must be to be 'on frequency' and it certainly
is fine with no intervention
If your email name is your zipcode in North Hills, then you're a bit far
away from JPL to pick up the omnipresent 10MHz (and harmonics) that's
leaked/radiated everywhere on lab. For most of the leakage, it's
probably based on either local Rb or GPSDO in the specific lab, or
locked to the lab's maser distribution. Generally fairly close to "dead
on" ( a very narrow spectrum analysis from a whip antenna is fascinating..)
It's an idea..
If you have microwave receive capability, several of the amateur beacons
in the Los Angeles area are now locked to a GPSDO - I don't know which
ones off hand, but an email to someone in the SBMS (San Bernardino
Microwave Society) would probably be useful. For that matter, their
monthly meetings often have someone there with a Rb source that you
could use to calibrate, or arrange to meet up with.
There's also some microwave shootouts in the area where everyone goes to
measure their noise figure and antenna gains, and I guarantee that at
one of those, *someone* will have a high quality frequency standard.
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