[time-nuts] DeLorme Tripmate GPS receiver
ed breya
eb at telight.com
Sat Dec 20 18:23:51 EST 2014
I just picked up an old DeLorme Tripmate GPS receiver for cheap, and
am wondering if it can be used for getting a 1 PPS signal. I looked
online a little and found it's pretty common, but didn't see anything
about getting deep into the guts. Most hacks seemed to be about
getting it powered up, fooling it into starting up (apparently the
character string "ASTRAL" has to be sent to it), and running to
output navigational info (NMEA). The interface is a DB-9 serial
connector that I suppose went to a PC and nav software. I don't care
about that, and I don't want to even talk to it - just whether it can
be fired up and automatically running with an internal mod, to get a
1 PPS out, without "ASTRAL" or anything else.
Does anyone know or have info about this aspect, or info about the
guts - block diagrams, sub-modules, documents, schematics, etc? I
haven't opened it up yet, but will soon see what's in there.
Ed
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