[time-nuts] Re: Comparison/evaluation of u-blox timing receivers

[djl]

John:  I missed this on its intro to the group. Great paper and effort. 
It's also a very useful intro/primer to measurement methodology beyond 
application to only the u-blox family. Thanks for leveraging the NSF for 
our benefit!
Don

On 2021-08-28 05:02, Julien Goodwin wrote:
> On 24/8/21 11:51 am, John Ackermann N8UR wrote:
>> In 2020 I did an extensive evaluation of the timing ability of the
>> u-blox LEA-M8F, NEO-M8N, NEO-M8T, NEO-M9N, ZED-F9P, and ZED-F9T.  The
>> work was made possible by support from the HamSci consortium
>> (https://hamsci.org) under NSF grants supporting HamSci activities.
>> 
>> I was sure I'd posted about the paper on time-nuts, but I can't find 
>> any
>> record that I did, so this is a belated announcement.  It's available
>> for download from
>> 
>> https://hamsci.org/sites/default/files/publications/2020_TAPR_DCC/N8UR_GPS_Evaluation_August2020.pdf
>> 
>> 
>> As BobC says, "Lots of fun!"
> 
> Neat.
> 
> For a project I might eventually get back to I was looking at using the
> M8F controlling an external oscillator. I built a test board[1], but I
> stopped once I had the GPS working, I can't recall if I even enabled 
> the
> control of the external oscillator, but I certainly didn't make any
> attempt to characterize it.
> 
> Once I get my frequency datalogging issue solved for my other project I
> might try and see what I get.
> 
> 1: https://laptop006.livejournal.com/60072.html the DAC, oscillator and
> supporting components are all in the bottom-left.
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------------
The whole world is a straight man.
----------------------
Dr. Don Latham  AJ7LL
PO Box 404, Frenchtown, MT, 59834
VOX: 406-626-4304