Hi all How can one explain that ant current rises when soil is frozen? Conductivity of water should be much higher than that of ice. So earth resistance would be higher and the current should drop wh
Hi Chris, By coincidence, I just had to re-adjust the antenna for exactly that reason: The conductivity of water is better, but the 'tangens delta' (loss factor) of water as dielectric is much worse
Oh yes but I think what you are doing here is merely improving the contact to the ground, which is a small part of the loss. At these wavelength this becomes less important than the conductivity belo
Hello Chris, Am 01.02.2014 16:18, schrieb C. Groeger: Thanks for quick reply, Wolf! But then propagation from a mf tx on a ship on sea should be worse then from land? Interesting theory.. never thoug
Why? I think its possible that frozen ground increases the efficincy of a given system, but that same antenna conguration would probably work even better still over salt water?? Alan G3NYK -- Origina
Hello Wolf, Am 01.02.2014 16:27, schrieb wolf_dl4yhf: I remember a suggestion in 'Rothammel's Antennenbuch' to enrich the soil with copper sufate (!) which I certainly don't recommend. Oh yes, copper
Indeed.. quicksilver could be used in a 'garden installation'. A chinese king did this many years ago (supposedly), with rivers and small lakes in the palace garden filled with quicksiver. Must have
What, therefore might be the effect of changing temperatures on the volume of this 'new' grounding material? 73 On 02/02/14 11:51, wolf_dl4yhf wrote: Indeed.. quicksilver could be used in a 'garden i
Hi Graham, What, therefore might be the effect of changing temperatures on the volume of this 'new' grounding material? An automatic antenna tuner may take care of this . Guess Qin Shi Huang wasn't a
didn't care for this > detail Or very much else , everyone who was involved in the project , ended up as part of the project , in the tomb in the ground or in a clay suit , it was over 400 years befo
