[time-nuts] Re: Motorola UT Still Going

[Tom Van Baak]

Magnus -- What GPS or Oncore documents are you looking for in 
particular? Fellow time-nut Jason has a deep stash of old GPS receiver 
documents [1]. For example, among the hundreds of files are these:

http://www.rabel.org/archives/Motorola_Oncore/vp.pdf
http://www.rabel.org/archives/Motorola_Oncore/ut.pdf
http://www.rabel.org/archives/Motorola_Oncore/utplus.pdf
http://www.rabel.org/archives/Motorola_Oncore/gt.pdf
http://www.rabel.org/archives/Motorola_Oncore/gtplus.pdf

Just let me know what you want or can't find. It's likely in my T&F 
archive or hardcopy library.

Art -- If you are still missing Synergy GPS files let me know. I have 
some old web backups of your site.

/tvb

[1] 
https://febo.com/pipermail/time-nuts_lists.febo.com/2007-February/006775.html


On 3/5/2024 6:11 AM, Magnus Danielson via time-nuts wrote:
> Hi Art,
>
> Thanks for the plot. I think I have a few VPs around, and natually an 
> M12+.
>
> The "hill" around tau=1000s seems to be in the rough scale of a 
> handfull of ns errors, which makes at least me think about sawtooth 
> error, and what clock is used to generate PPS, dvs. compensation of 
> sawtooth errors. If you could spread some light into what the numbers 
> are it would be appreciated.
>
> While things in general is improving is good, but it is also clear 
> that oldest (VP - blue) is not worst.
>
> I used to find datasheets for the Motorola GPS receiver chips. Do you 
> happen to have that in your stash so you can share with us for 
> historic reference?
>
> Cheers,
> Magnus