The soil property that relates to electrical conductivity is cation exchange capacity or CEC. A web app that can help you estimate conductivity is Web Soil Survey located at http://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm
After finding your location, navigate to chemical properties and look for conductivity. Bill AF4B On Monday, June 30, 2014 11:52 AM, Fred Jensen <[email protected]> wrote: On 6/30/2014 9:37 AM, Doug Person via Elecraft wrote: > Getting them > underground enough so a horse with steel horseshoes won't inadvertently > dig one up while engaging in typical horse play ("horsing around" is a > phrase with real meaning around here). We refer to that as a "fruitcake attack." Never know what provokes it but something gets into their heads. I've come to the conclusion that there's quite a bit of extra room in their heads. :-)) > So I guess my biggest concern is that the wire will corrode rapidly as > K9HZ has suggested in a direct email. I have numerous lengths of old > aluminum lying on the ground at my antenna site. There does not appear > to be the slightest bit of visible corrosion. But perhaps being > literally under ground as opposed to lying on the ground makes a big > difference. I think that will depend on the pH of your soil. I had some buried #12 Al wire that traversed a flower bed with a couple of Camellias which like acidic soil. The wire corroded badly in the bed from the fertilizer but the rest was as good as when I buried it when I finally pulled it up. >I might turn it > into a very large loop antenna at about 40 to 50'. My guess is that you'll be happier with the loop than a non-resonant vertical. Loops are usually quieter than verticals too, although that may not be a problem for you. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
