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Global Positioning System and Satellite navigation devices of all kinds.
20
votes
Satellite navigation in Mongolia?
GLONASS system provides a real-time map of integral availability for the current day. Availability is measured as the percentage of the time during the day when you could get a reasonably precise fix …
6
votes
In an emergency, how do I find and share my position?
One practically free option is to have a strobe light app installed on your mobile phone. Some of those apps support the "SOS" pattern. It doesn't help much during daylight, but after the sunset light …
1
vote
Are there advantages to a dedicated GPS?
Dedicated GPS devices are still better than phones in offline use. Commercial maps are more compact than offline areas (on my GPS, both France and Germany are under 100MB, compared to 800+MB in case o …