Many of the folks I flew with in Alaska in private aircraft years ago used to remove the ELT upon returning to base. I honestly do not remember why now - two things come to mind, though: 1) Battery life in extreme cold; 2) Around Anchorage, it seems like there were ALWAYS 2-3 ELTs merrily chirping away in parked aircraft. I don't recall that being the case in the interior.

Anyway, it was a practice that I recall very vividly. I can tell you precisely where the ELT was located in a Super Cub + bush kit a/c that I rode around in most of the time. Perhaps someone who flies more regularly up North these days can shed some light...?

Tom