Thanks Corby.
Well didn't find the zeeman peaks but using a GPSDO it was very apparent
what the peaks are. Its now set and the real issue is that the base unit
was a option 004 now with a standard tube in it. Changing the C field
resistor moved it into the correct offset range. 300 ohms down to 235
FWIW, here is a quick test I ran on my TICC, assuming the attachment makes
it.
"TICC base" was a Trimble Thunderbolt reference and PPS.
The reference for the other traces was an FE-5680A with an LTE Lite on ChA
and Trimble PPS on ChB.
The GPS antennas are indoors and entirely sub-optimal. The L
Paul,
The Zeeman frequency you use depends on what synthesizer frequency your
unit is set for.
Either 48.82Khz or 53.53Khz.
See: https://www.febo.com/pipermail/time-nuts/2008-July/032378.html
The Zeeman coil is close to a short. You set the amplitude to the spot
that gives you the best look at
Working on a 5061 that I can actually see the beam current on. Looking at
the manual it says to inject a frequency and there are several possible in
the 50 KHz range. But it never says the drive level of the signal to use.
Since this was fairly vintage equipment I might assume the coil was driven
h
Frans
We have it ..contact me off list
Dave
manu...@artekmanuals.com
On 2/25/2017 7:13 AM, Electronics and Books via time-nuts wrote:
is there a pdf of
Hewlett Packard 5060A Cesium Beam Frequency Standard Training Manual
02127-2 Feb 1967
Met vriendelijke groeten
Regards
Frans
i...@electro
is there a pdf of
Hewlett Packard 5060A Cesium Beam Frequency Standard Training Manual
02127-2 Feb 1967
Met vriendelijke groeten
Regards
Frans
i...@electronicsandbooks.com
http://ElectronicsAndBooks.com
Discere ne cesses
___
time-nuts mailing list --
Hi Tom,
> [ USB time transfer ]
>
> It seems to me that if the read path and the write path are different it
breaks down.
>
> ... But turning that into precise time requires some kind of calibration
of the actual code path delays. In other words, it sounds to me like your
method is valid for frequ
On Fri, Feb 24, 2017 at 7:08 PM, John Ackermann N8UR wrote:
> Hi Andrew --
>
> There seems to be more than a little magic involved in getting sane
> three-corner measurements. I've gotten best results when the run is long
> enough to have many data points per tau, and also that results when you'r