Roger, the programs SOILSKIN and EARTHRES by G4FGQ (SK) will not answer your questions directly but they are related to your questions and they are interesting to play with (many of his programs are)
Hi Rik I'm actually using an inverted L oriented E-W 7m/35m. The vertical portion is at the westerly end and goes up into a silver birch tree and cross a branch at 7m and then goes in an easterly dir
For a hand-drawn sketch "system diagram" showing the ground points, wire routing of the earth electrode loop antenna, please visit my blog at http://g3xbm-qrp.blogspot.com/ These notes are to clarify
Roger, Johan, I had a look at the WSPR data on june 16 between 18 and 20 UTC (daylight): At G7NKS: both G3XBG and G3ZJO are at 46km, G3ZJO was in average 3dB stronger At M0BMU: G3ZJO (76km) is about