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20

If you're not using the device to find your way, it is useless as far as the GPS functionality is concerned, no matter whether it's switched on or off. If I know they are looking for me, would they pick up the signal, if I switch it on for short periods every now and again? What signal? The GPS signal is sent by satellites, GPS devices receive this ...


9

Use the GPS to determine your position and then text or email that to your rescuers. That will be the end of the GPS's contribution to the rescue process. Staying put is generally best (saves your energy and ensures you don't move into an area they have searched and think you are not in) but that place should be safe and you should be discoverable in it. ...


6

Disclaimer: I rarely use GPS system personally so feel free to correct me if I've misunderstood something. However, I think that 2000 points should be more than enough. Say you are doing a reasonably long route of 40km per day. If you use all 2000 points in that distance that will give you one point every 20m. Give that the accuracy of your GPS under some ...


2

Two scenarios are to be explored. Do you have mobile coverage? Yes? Then just find out your gps coordinates, send them to your rescuer. And stay put. In case your location changes, resend them (sounds lame but essential). Since you are asking about battery life, it's okay to switch off your GPS (given the device[mobile/watch] provides that option) to ...



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