GPS for divers
Published on March 14th, 2008 in gps navigation, hacks
Here is a problem: You are a diver and want to use a handheld GPS receiver to mark your position. Your device is not water proof and signals from global positioning satellites can not penetrate water.
What you should do is place your GPS receiver into a watertight container such as the ones from Otterbox and let it float to the surface long enough for it to get a position fix. After the fix you can pull it back down and mark your position…. via
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March 14th, 2008 at 5:35 am
Have you ever tried to use GPSr under water? It doesn’t work, GPS signal won’t get to the unit.
I tried to swim with Garmin GPSmap 60Csx (Sirf Star III) and everytime it appeared under sea level (about 1 feet), the signal was lost immediately.
March 14th, 2008 at 5:38 am
Ooops, I’m sorry. I see you wrote it in your article too. So I can confirm you are right, GPS signal doesn’t work under water.
June 17th, 2008 at 12:38 pm
I thought the Garmin GPSMap 76 series models would be OK for this purpose too. They float and are waterproof. But the IPX-7 specs read: protected against water immersion for 30 minutes at a depth of 1 meter. To what depth can an electronic device like a GPS handle the pressure?