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Old 02-26-2008, 07:28 AM
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Mendocino Mendocino is offline
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Join Date: Sep 2005
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Thanks for the answer Seldom Seen. Ax25 and AFSK make perfect sense. BTW-the message sent from the GPS to the TNC is a NMEA-0183 GGA message. This is the autonomous location of the GPS receiver and should be accurate to about 6-10 meters CEP. There are many other message types that could be used including velocity and timing.

You can read about NMEA here: http://www.nmea.org/pub/0183/

and Here: http://www.nmea.org/pub/0183/
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