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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. ...


7

International standard and very easy to remember is the Y or N signal. If you want to communicate more than that, your signals should be easy and self-explaining. If you are e.g. climbing and it's not that obvious who needs help you could also inform the rescue team in the helicopter by pointing to the casualty after signaling Y.


3

Two arms up (Y) indicates you are in distress. One arm up, one arm down, indicates that you are not in distress. Also, when in distress, our friends in Europe tend to recognize the rule of 3 ( or 6 ): http://en.wikipedia.org/wiki/Distress_signal#Mountain_distress_signals If you have flags, or sticks and fabric to form flags out of, you can utilize the ...


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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