> I want to thank everyone for their guidance. Seems I was running down a > rat-hole that might not exist. However I have more than enough to go > research specific options in other directions now. Sorry, I missed this thread, so maybe this has been discussed. I’ve used a Garmin GLO with my own Linux/GNU-based NMEA-compliant SW. It speaks Bluetooth, and receives GPS and GLONASS. The newer GLO 2 (which I haven’t tried) is about US$99 on the Garmin website. I can provide details about how I used the GLO on Linux. (I routinely use my own SW running on a battery-powered Pi to forward USB-connected GNSS receiver output across internet connections using UDP, but that may be a bit of a learning curve for anyone else.) — John -- J. L. Sloan Digital Aggregates Corporation +1.303.489.5178 3440 Youngfield Street mailto:jsloan@diag.com #209 http://www.diag.com Wheat Ridge CO 80033 USA