NMEA help?

Getting Eagle Cuda sonar/gps with NMEA 0183 port. Anybody using the NMEA stuff to upload / download maps and routes, etc.? Where can I find plain English how-to help?

Thanks.

http://vancouver-webpages.com/peter/nmeafaq.txt

Has a simplified but not simple description of NMEA Protocol.

NMEA 0183 is a protocol for command and data exchange between devices. Based on 'sentences' it is a pretty rich palette for controlling GPS and other such nav goodies. However your particular GPS/NavDev/FishFinder has it's own set of interface requirements likely based on NMEA 0183 protocol. Check with your vendor for details and suitable upload/download tools. Designing your own is not for the faint of heart or weak of codesmithing. I have used Garmin and Trimble nav devices for many years and they seem to have a good reputation for customer assistance.

anasasi (Not NMEA compliant)