[ntp:questions] First attempt GPSD/PPS ->NTP time server
hal-usenet at ip-64-139-1-69.sjc.megapath.net
Thu Jan 31 07:43:30 UTC 2008
>My Garmin was sending to much data, sending a NMEA sentence once per
>second. So I put '$PGRMO,,4<CR><LF>' in a file and send it to the Garmin.
>Now it's at six lines per second; GPRMC, GPGGA, GPGSA and three GPGSV
>lines (plus one PGRMT per minute).
When I setup a GPS receiver, I try to remember to write down the recipe.
(and enough notes to remind me what/why)
Then I can cut-paste from one window looking at my notes to
another shell window.
I've had reasonable luck with things like:
stty --file=/dev/ttyUSB1 4800
cat /dev/ttyUSB1 # to see what it's sending
# \$PSRF103,0,0,0,1*24\r\n Turn off GGA
echo -e -n "\$PSRF103,0,0,0,1*24\r\n" > /dev/ttyUSB1
That particular unit needs a valid checksum on commands
so the *24 is required.
We should collect this stuff on the wiki.
These are my opinions, not necessarily my employer's. I hate spam.
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