tag:blogger.com,1999:blog-9071048343455395511.post4562374754314454012..comments2024-03-16T16:06:49.744+00:00Comments on Roger G3XBM's (Mainly) Amateur Radio Blog: Earth-electrode antenna for 472kHz in the new garden - not too brilliant Roger G3XBMhttp://www.blogger.com/profile/13673890140751539870noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-9071048343455395511.post-38050848108761599372013-09-10T03:48:30.517+01:002013-09-10T03:48:30.517+01:00Disappointing but interesting. Seems to prove that...Disappointing but interesting. Seems to prove that the earth currents produce the radiated signal. Seems reasonable as ground waves rely on the currents they produce in the ground. I wondered how much the current in the wire contributed to the signal but it looks like not much. Maybe there is a big metal tank under the garden. Would be interesting to find where that pipe goes. If there is a tank I would have thought there must be a hatch somewhere to fill it.John G4LRRnoreply@blogger.comtag:blogger.com,1999:blog-9071048343455395511.post-34720521853716425372013-09-09T07:51:04.477+01:002013-09-09T07:51:04.477+01:00Well, as you noted in an earlier post, you have a ...Well, as you noted in an earlier post, you have a lot less copper to connect your earth to, compared with your former QTH. I guess the copper helped quite a bit.<br />I would strongly recommend to erect an overground loop again. Not only to improve your ERP, but a loop is a quiet rx antenna, less prone to electric field noise from domestic sources. Good luck at your new QTH!<br />RobertLA4ANAhttps://www.blogger.com/profile/06026678279567863427noreply@blogger.comtag:blogger.com,1999:blog-9071048343455395511.post-18424405482311855362013-09-08T20:16:05.898+01:002013-09-08T20:16:05.898+01:00I'll be honest and admit to my total ignorance...I'll be honest and admit to my total ignorance of this methodology. However, I would suspect that there is a lot more "going on" below ground than "above". I guess you have to take the extra factors into consideration. However, if you were looking for easy communications, I suppose you would be a big fan of 80M rag-chewing. Enjoy the challenge.Dickhttps://www.blogger.com/profile/10984094559146508871noreply@blogger.com