Ahhhhhhh. But I wanted as BIG as I can get.......Mate to a GSD26 and Interface with a 4212.
I already checked...... 740's will not do that.
740
Garmin Marine Network™ compatible No
GSD™ Black Box sonar support No
740S
Garmin Marine Network™ compatible No
GSD™ Black Box sonar support No
The touch screen was not what I was after also...That would have been a 5208
There is so much to this stuff and it has a learning curve. Sure Garmin's are the easy machine to operate, but there are things down in the bowls of the units that you just have to go look up.
Keeping the top unit and bottom unit's operation the same was key.
They function exactly the same. Only differance is 4212 = 1500 waypoints and 6208 = 5000 waypoints.....Yes I have 1800 waypoints.
The processor is faster in the 6208, so the redraw rate is much faster compared to the 4212. The 4212 came with the boat.