The circuit was built on a proto-board that has copper traces on one side.
I have plans to make another one, which will be way smaller, but for now
this one works just great for all my APRS/GPS needs. Total cost was about
$70.00 cdn.
The Trimble SQ defaults to a 9bit, 9600 baud, binnary format, so you will
need to download the free software, and set it up for ASCii NMEA sentences
at 4800 baud.
To use it, just hook it up to the serial port, turn the gps unit on, you did
hook up the antenna, right? , run HyperTerminal, then watch the ascii scroll
by,....or you could hook it up to a program called GPS TrackMaker, and see
where you are on the map, or you could hook it up to your bot if it lives
outside.
On average it takes about 50 seconds on a cold start, but I've had to wait
as long as 3 minutes a couple of times, not bad.
Link to GPS TrackMaker:
GPS TrackMaker - http://www.gpstm.com/
Data sheets and info are available here:
http://www.trimble.com/lassensq.shtml
