But if like us, you venture off road on foot, bike or horse, then it can be a useful tool, even more especially if of an age where broken limbs and the like can happen more easily
A+ and I are not infrequently away for a good part of the day alone whether mapping, trail riding or running. Usually we will see no-one else once off road so help could be a long time coming in our mobile phone black-holes. But even in the usual case of no mis-fortune we can make good use of the OK message to let the other know that we are OK and are simply going to be late back. Or we could use a custom message to indicate that we will be at the rendezvous for pick up in say 90 minutes. SPOT receives GPS satellite signals and transmits via Iridium communication satellites. Its primary, although hopefully less used, purpose is to transmit an SOS complete with GPS location. Or for an incident not requiring emergency services, an Assist request message can be sent to nominated email/SMS addresses usually including family or friends.
To give you a visual appreciation of what it can do, I set SPOT to track a recent small geocaching walk. I sent messages both at the start and along the way. Also I uploaded photos I took. Check it out at http://www.spotadventures.com/trip/view?trip_id=241556Hope this helps a few of you, Regards, Kenny
None of us will recognise you with these change of disguises 
