Terry, thanks for the thorough reply. You did lose me just a bit but I understand the basics and your illustration was also very helpful. You are confirming that the Yacht-AIS program runs independent, from a software standpoint, from the navigation program which is good news since it means one has flexibility of choice.
Two questions if I might:
1. I assume you personally adjusting the size of each program's display so that they lay above/below one another. This 'minimize/adjust/full screen' feature that's commonly available on MS-run programs is not available for the CMap navigation software I use with their CM93 charts, and so I'm unsure how to get that 'split' display. If you've solved that puzzle, I'd be interested in knowing how.
2. You mentioned 2002 CM93 vector charts but I've only seen the 1999 version; when I spoke with CMap in London they were not keen to discuss such details since that (apparently, Russian) project didn't mature. Can you offer a commercial source for those CM93 CDs? Or did you pick them up in the same manner as the 1999 CDs?
Again, many thanks. Neat kit! Once the SSCA BB is back up & running, we really should put a link to this thread on that AIS thread; your pics here would help folks to visualize what's being discussed, I think.