Check out my web site at http://www.caving.btinternet.co.uk There is a little about cave radio beacons for radio location and depth finding. Also there is a brief explanation of a positioning system
Thank you. I will also pass this information along. My family and I recently took a tour of Oregon Cave in the U.S. and the delightful young lady serving as a tour guide was in her final year of trai
Helllo from Iowa, USA. I seem to recall an earlier thread about Cave Radio on this reflector. I made note of this URL: http://www.bcra.org.uk/sig/creg.html That page is on the main website of the Br
Dick, Many thanks for the reference. You are not off topic. Cave radio makes extensive use of LF, although not on amateur frequencies and the references you give look very interesting. In Europe we p