Hi Mark,
The CW25 is the model number of the little circuit board, but the model
number for the GPS module itself is CW12. So if you search google for
, you'll find the user's manual for the CW12. At
least, it's the version that emulates the Motorola M12.
Ed
I have a few Tru-Position boards. This is an older older GPSDO board for
telecom industries. I am using this with LadyHeather.
All hooked up, it locks and works; but, quite often Lady Heather shows the red
line in graph, showing it is unlocked. I have several GPSDO board here, and
for all
Dear all
I have just rescued a Trimble 2101 Plus aircraft GPS
Can I rescue a descent frequency standard from it
Regards Paul B
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Apparently the rollover grounded some airplanes... oops...
https://arstechnica.com/information-technology/2019/04/gps-rollover-apparently-cause-of-multiple-flight-delays-groundings/
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> There's another relatively simple clue in the old GPS signal: the leap
> second count! A device manufacturer could teach it what the leap second
> count was at manufacturing time, and how to predict a lower bound on the
> leap second count in the future (with a suitable safety margin / fudge
>
Leo Bodnar wrote:
> Assume that the device does not have any reliable long term non-volatile
> memory that you can update.
> In the absence of any clues your only reliable piece of knowledge is
> that the cold start date is somewhere after the date of manufacturing
> or, most often, firmware
