[aprssig] Garmin NUVI & messaging?
scott at opentrac.org
Wed Feb 16 16:10:57 EST 2011
On 2/16/2011 5:30 AM, Pentti Gronlund wrote:
> Scott Miller writes:
>> For the D700 you'd be using the GTRANS cable, though, which doesn't
>> enable FMI mode and just uses the same connection to get position data
>> and send waypoints.
> Is the format that GTRANS uses with Garmins published somewhere?
> 73 de Benjamin OH3BK
I'm not sure what you're asking... the FMI protocol is documented on
Garmin's site. On the serial side, the GTRANS uses $GPWPL (NMEA 0183)
and $PKWDWPL (not publicly documented that I know of), and KPC-3 style
packets. It puts out $GPGGA, $GPRMC, and $GPGLL.
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