Hi Alan and LF, I know there are some of you who can easily answer my question that follows :-) The maximum distance of the groundwave at a specific fieldstrength E is (about) linear increasing with
Hi Rik, No I dont know what formulae Reg used but I am guessing he used the proceedures in the ITU Recommendations. I have a paper with a load of graphs and I think formula it you would like it. I pi
Hi Stephan and Rik, yes Rik I was meaning to mention the late Reg's program. Your estimate is probably right and the thing is complicated further by even in daytime the skywave being stronger than th
Hello Alan, I agree that the typical 500kHz QSB is indeed ionospheric multipath causing interference. I surface wave was involved I would only notice it with stations I can also hear during daytime.
Hello Stefan, ground waves (surfaces waves) are a tricky thing. The assumption you made (+6dB TX power = double distance) takes only the 2D spreading loss into account. This would be correct if the g
Most of the G4FGQ softwares (Original, high-quality, radio engineering/modelling programs.Not freeware -- just free gifts -- ) are on http://www.zerobeat.net/G4FGQ/index.html#S102 73 de Jean-Louis F6
