I really like my Spot II. Wear it on my shoulder, use tracking mode most of the time. You need to understand its limitations: Wear it the wrong place and it won't work. In deep canyons, sometimes tracking signals don't get out. Bottom two miles of the Whitney trail are like that. Don't turn it on, send a signal, then shut it off in 5 minutes -- those signals do not get out very often. Needs to be on for 30 minutes or more -- it sends multiple signals in order to reach a satellite.
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PLB / SPOT / Delorme / Sat Phone
