Dave Ackrill wrote:
> Dan Smith wrote:
>> I know I have seen a few posts about keeping time via GPS.. I tried for a while to get my Garmin GPS III with no luck..
> I have a Garmin GPS III+ and I wonder if the problem is that the output
> from that unit is NMEA sentences?
Sorry, I just remembered that the NMEA output is selectable but the
default option is designed for uploading and downloading waypoints, maps
and tracks etc.
So, you would also need to alter the output in the menus.
Looking in the manual, there are 5 interface options;
1. Garmin - proprietary format used to exchange waypoint, route,
tracklog data with a PC or another GPS III+
2. NMEA - input/output of NMEA 0183 version 2.0 data (often used for
3. None - no input/output
4. RTCM/NMEA - allows differential GPS (DGPS) input and NMEA output
5. RTCM in - allows DGPS input using standard RTCM format. No output.
So, any utility for setting the PC clock using a GPS III+ would need to
be able to interface with one or other of the above options.