Originally Posted by ShinyShoe
1700e gets a good write up. What else do you have on-board to talk to?
It would be unusual (?maybe even impossible) to fry a radio by reversing the NMEA connections. Did you put 12V into the NMEA?
No, i managed to reconnect the 12v supply to the radio with reverse polarity...
at the moment i am only using navionics on a cheap android tablet. it does the job fine but i want some redundancy in case it malfunctions. the 1700e allows you to programme in up to 100 waypoints which would provide a navigation backup. plus with the built in gps its one less cable to think about as it wont require an external gps mouse. my boat is deflated and packed away between trips so the simpler the better.