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GPS

07 Jul 2018 08:20 #4991 by Robby L
GPS was created by Robby L
This came to mind when i was thinking about the cave rescue.

To those who use hand held GPS to keep track of where they are in forests.

Looking at one of the photos of a group of the rescue divers with what appeared to be hand held GPS I was wondering is there a device, application, that can lay down a track in a cave that can be followed on the return journey?

RIP 2018 - Robby will always be remembered for his sharing of his trips and knowledge. Missed by all.

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07 Jul 2018 13:11 #4992 by onflipflops
Replied by onflipflops on topic GPS
I do not know the answer. What I do know is that my gps struggles in deep valleys to 'contact' the satellites. I highly doubt it would work in a cave, but I have never tried.

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28 Aug 2018 20:04 #5070 by Paul T
Replied by Paul T on topic GPS
I can confirm they will not work under concrete or metal cover and not in caves or underwater either. There is a system that can be used underwater and underground though, where a signal is sent out from a special beacon (or multiples) and a mobile responder is carried by the diver. 

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