[time-nuts] DATUM 9390-52054 Grief again...
Stewart Cobb
stewart.cobb at gmail.com
Sun Apr 7 01:05:39 EDT 2013
> I do not recognize the GPS receiver module, but it has the following
> number on it: TNL 22880-B. I have the schematics for the overall
> DATUM 9390-25054, but the GPS module is just a block. By the way,
> the GPS block on the DATUM overall schematic is marked, "SV6 /
> (TANS)". I suspect this means something noteworthy.
"TNL" is Trimble Navigation Labs (their original name). "TANS" is Trimble
Advanced Navigation Sensor, a GPS receiver designed circa 1989 for UAVs and
similar mil/aero applications. Almost certainly has six GPS channels.
Generally spoke a version of TSIP, like the Thunderbolts. Often RS-422.
"SV6" as someone else mentioned, is another Trimble 6-channel receiver from
the same era. I think it was more commercial than military. Probably also
spoke TSIP.
22880 is the Trimble part number for the board you have, rev B. Trimble
used random 5-digit part numbers until very recently, when they had to go
to six digits because they'd used up all the 5-digit numbers. That only
took about 25 years. :)
You might be able to hook up Lady Heather to snoop the receiver
communications on one of your good Datum units. If that works, you might be
able to hot-wire a Thunderbolt in place of your dead 22880 board (assuming
it really is dead).
Cheers!
--Stu
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