Thank you Talbot. I had a real nice telephone conversation with Simrad tech support this morning -- turns out, I grew up in Nashua, NH where the Simrad USA listed supoort/dealer is based -- small, small world. The Simrad AP can interface via NMEA0183 directly to Raymarine E120W series chartplotter, using an AT10 interface cable -- however, since both are also NMEA2000 compliant, would have to use a SimNet to Micro C cable for Simrad AP to talk to Raymarine E120W via NMEA2000..... not a big deal in the overall scheme of things.
If I go with the Maretron GPS200 unit, would that simply go in place of the Raystar 125 GPS unit ?
The Airmar H2183 seems like a wonderful upgrade -- I'm just not clear as to how it integrates with the Raymarine E120W....and does it take the place of anything ?