I have an Etrex venture, which has a serial RS232
interface. I got a cable with it, but when I plug
it into my laptop
, fire up SeaClear II, set COM1 to 4800 baud....
yes, yes, I DID turn on the GPS!
When I look up the serial
interface format screen
on the etrex, the only option is "Garmin". I take that to mean that this thing is putting out serial data, but it's in some sort of Garmin
proprietary format, and not NMEA 0183
Next up is trying my old Garmin
38 which is supposed to put out NMEA 0183
ver. 1.5. I also just ordered a USB GPS