Hi
The basic input to ADEV is phase. That’s nice, but it’s not how a lot of people
think about “frequency” sources. We
get taught that phase modulation and frequency modulation are two different
things. After they finish with that there is
a little footnote somewhere that says “but the really
Hi,
On 09/07/2015 02:23 AM, Tom Van Baak wrote:
Finally analyzing the data with Tom Van Baak's adev1 (
http://www.leapsecond.com/tools/adev1.htm)
[paul@localhost Documents] $ ./adev1 1 < ../datafile.txt
Hi Paul,
There's also the adev4 and adev5 tools too. But my main suggestion is to use
Jo
>> Finally analyzing the data with Tom Van Baak's adev1 (
>> http://www.leapsecond.com/tools/adev1.htm)
>>
>> [paul@localhost Documents] $ ./adev1 1 < ../datafile.txt
Hi Paul,
There's also the adev4 and adev5 tools too. But my main suggestion is to use
John's TimeLab instead of a command line to
I just noticed that I skipped a step in my write-up. Adev1 doesn't like the
"TI =" in each line of the data file.
A better approach is:
> perl -p -e 's/.*=//g' datafile.txt | ./adev1 1
** Sampling period: 1 s
** Phase data scale factor: 1.000e+00
** Total phase samples: 70397
** Normal and Overl
Thank you everyone for responding to my plea for help doing data collection
with an HP5370B. Let me post my progress so far. These techniques may be
obvious to the experts here, but I think the guide will help novices like
me.
This is for the HP5370B with John Seamon's Beaglebone modification,
htt
The manual reports that the 5370 is SRQ capable but no example is
given. Anyway, the operation is the serial_poll and read_status_byte
sequence, when the status byte reports the error 0, then a measurement
is complete and the result can be read. How to implement the SRQ
management depends on your G
Usually it is possible to trigger an SRQ after a measurement is
completed. I'll have to read the manual for the details on how to
implement this procedure.
On Wed, Sep 2, 2015 at 10:31 PM, Hal Murray wrote:
>
> paul.alfi...@gmail.com said:
>> While I can see single measurements either with the Be
In message
, Paul Alfille writes:
>I am stymied by what should be a simple task: I'd like to gather sequential
>measurements from my HP5370B.
You can do it two ways.
Either use the EXT ARM to pace your measurements, and the computer
just reads them as they happen.
Or you can use the M
paul.alfi...@gmail.com said:
> While I can see single measurements either with the Beaglebone network
> interface or using the linux GPIB command line routines, I can't figure out
> how to get a series of measurements.
> I could just poll the device in a loop, but is that the proper technique?
>
I am stymied by what should be a simple task: I'd like to gather sequential
measurements from my HP5370B.
I have two of them, one with the Beaglebone mod and one straight GPIB. I'm
running linux and have a Beiming HP GPIB->USB device.
While I can see single measurements either with the Beaglebone
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