On Thu, 19 Mar 2009 19:25:40 +0700, Bruce In Bangkok
wrote:

I must admit that the only times I have used Hyperterm was to see
whether any data was being received. If there was any then the
connection was working. Never knew enough about NMEA to translate it.

There is a wealth of information here from our very own Peter Bennett:

http://vancouver-webpages.com/peter/idx_nmeaprog.html

More he

http://gpsinformation.org/dale/nmea.htm