Is it possible to shut down all antennae except for the gps? I am thinking of buying an Android phone soon (Probably Desire HD), and would like to use it to record hiking trips GPS data.
All those run tracking apps seems just right to me, but I am looking for something that can run more than a few hours, so I figured that turning off the wifi/3g/cell antennae will give me a much longer battery life.
Is it possible to achieve it easily? Maybe only with root access?
You can activate the Airplane mode to shutdown everything (calls, wifi, etc), and then re-activate the GPS. Only the GPS Antenna will be activated... I think :D