April 01, 2006

Waypoints - April 1, 2006

Quick GPS / mapping links from the previous week:

Mapping software

Google Earth and Google Local

The rest

  • Ogle Earth links to a story about DIY aerial photography, which reminds me of kite aerial photography.
  • Live in Japan? Here’s a way cool 3–D GPS phone.
  • GPS sites were buzzzing this week about the new Navmans, especially the iCN750, which allows you to take pictures and navigate back to it. Maybe it’s just me, but I’d prefer to search by name to find a destination to navigate to, rather than scroll through lots of pictures. Give me a GPS that navigates via voice recognition, then I’ll be happy! Hmm, maybe there already is one. I’ll have to look into that.
  • Down under, they are using GPS in soccer (football). Really, they are!

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Apr 1, 2006 12:33:19 PM | Geocaching, Hardware, Internet applications, Location based services, Software, Waypoints

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Why have an electronic compass? A GPS receiver discerns your position on the surface of the earth by measuring the length of time it takes to receive signals from satellites. It cannot, however, tell what direction you are facing while standing still (or moving slowly). So if you are navigating to a waypoint, your GPS can only point you in the correct direction once you are moving. This is where an electronic compass comes in handy. It can tell what direction you are facing, even while standing still. Not only does this make navigating easier, it also helps with projecting waypoints and orienting paper maps. Electronic compasses will shorten battery life somewhat. They are typically paired with a barometric altimeter. Related post: Why have a barometric altimeter?
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