On Fri, Jun 12, 2009 at 10:16 AM, David Lord<[email protected]> wrote: >>>> I'm not sure whether the NMEA driver attempts to send anything /to/ the >> >> Which NMEA driver? > > Type 20, and from driver20.html it does appear the driver outputs > a request if there is no sentence input from the gps.
The NMEA driver does write a sentence to the serial port once per second, whether or not it's heard anything back. However, you can safely ignore that and not wire the PC->GPS serial lines, as the sentence written is only understood by some ancient Motorola GPS which apparently could not be set up to transmit automatically once per second. I'm sure your Garmin would not miss the input. Cheers, Dave Hart _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
