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Inside the DIY World of Mapping Caves With Radio:

from gizmodo.com on April 5, 2014
Website: http://gizmodo.com/inside-the-diy-world-of-mapping-caves-with-radio-1557401111
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Inside the DIY World of Mapping Caves With Radio:

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Inside the DIY World of Mapping Caves With Radio:  
by K4IQT on April 5, 2014 Mail this to a friend!
Good article! Some of the best info is at http://radiolocation.tripod.com/ and http://bcra.org.uk/creg/info.html, and includes info on underground voice communications as well as the use of other electronics in a caving environment.
 
Inside the DIY World of Mapping Caves With Radio:  
by KQ6XA on April 10, 2014 Mail this to a friend!
http://www.qsl.net/kq6xa/caveradio/index.htm

185kHz Radiolocation and 7MHz Experiments in Bigfoot Cave

Radiolocation and communications work in caves is usually done on VLF and LF.

Bonnie Crystal, KQ6XA, reports on successful tests at much higher frequencies.
 
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