Thanks for the info. I have heard of Gradar, but only during development stage.
Can you suggest links to get Gradar and whatever equipment/information necessary to get 0183 data into the computer? I assume a device, program, or wiring
diagram is needed to get the little colored wires of 0183 correctly into a usb connector?
I understand proprietary marketing
tactics and expected as much. Went with the Garmin package for the sole reason that you can not buy a radar with display these days that is not an mfd. Found that used radar is just about as expensive (if it really works) as the Garmin 740s/HD18 package once it is all added up and working.
I can do without NOAA charts on the 740s. Might be cheaper and easier to get another throw-away laptop
or tablet to put at the helm
with Open Cp than it is to buy Garmin charts, then just use the 740s for radar/sonar display at the helm
Does that sound to you like a reasonable approach? I am trying to build up redundancy to back up each system.