Wow.

I just skimmed through your 113 page report. Amazingly detailed.

What's incredible is both that these systems exist and how much background knowledge is actually needed to use one successfully. Unlike my digital camera, these are not really "push here dummy" devices.

The last time I went on a real adventure (6 years ago, sigh), we had a suitcase satellite phone but were so far south it was close to useless. But all that meant was sailing further north to get reception. Had we been stranded somewhere, it would have been dead weight. (Our Mustang dry suits extended water survival from 30 seconds to 2 minutes. Being in the water wasn't an option, which is why we were always tied to the boat when on deck.)