I can't seem to get my gps and my computer to communicate with each other. Both the gps (Garmin GPS 75) and the computer software (Nobeltec, Visual Navigation, version 4.1.347) are semi-obsolete and are no longer supported by the respective manufacturers. Individually, both the gps and the computer software work great, but I can't get them married. User's manuals for both say that they're nmea-0183 compatible and I believe, hardware-wise, I've connected everything up correctly. Can anyone tell me how to tell if my gps is actually getting information into my computer ?? (I'm about a "medium" on computer literacy)
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