[OSM-dev] hacking outdoor GPS devices

[Martin Koppenhoefer]

Am 16. April 2012 20:26 schrieb Mitja Kleider <mitja at kleider.name>:
> * Why would you buy an outdoor GPS anyway instead of using your smartphone?


besides the aforementioned facts (accuracy, readable in direct
sunlight, battery life, shock- and water resistance, interfaces (e.g.
plug for external antenna)) I also like to have 2 independent devices:
if the GPS runs out of battery I still am able to make phone calls, or
you could switch your phone off in an emergency situation without
signal reception and turn it on only from time to time while still
being able to use the GPS.

Another thing is the kind of power supply: you can put ordinary
AA-batteries in a typical GPS outdoor device, which you can get almost
everywhere, and which are cheap enough to carry multiple backups with
you for long trips.

cheers,
Martin