Hi Pieter-Tjerk, I agree. Now one could think that there must be a difference regarding the way the feed line goes to ground (vertically down or a few meters horizontally and then down or even 20 cm
It is physically impossible that an antenna has no polarization. Let me explain why, by describing a thought-experiment. Suppose you would have such an antenna which really has no polarization at all
Isn't it also true that for any given signal and noise field there will be an optimum antenna positioning and orientation that will achieve the best obtainable s/n. There is, likewise. an antenna con
Roelof, I remember reading about a very similar antenna arrangement early in my career. It was described by the writer (name forgotten) as "one plate of a capacitor - the other plate being the rest o
Hello all, Further to this discussion, I have done the ultimate test to demonstrate that an active whip antenna with a 1 meter long whip behaves as a capacitance at LF. For the test I used the ground
Hello Graham, This will work as well. I have build one in a small die cast aluminum box. The box was the "antenna" and the buffer amplifier was inside the box. The feed line was connected via an isol
What happens if its a small 'ball' and not a flat plate ? G.. Hello all, Further to this discussion, I have done the ultimate test to demonstrate that an active whip antenna with a 1 meter long whip
Roelof Without adequate isolation between the feedline and e probe unit itself, the x meters of vertical feedline above ground level is part of the antenna. Jay W1VD WD2XNS WE2XGR/2 Hello all, Furthe
Hello Jay, I don't think so. I have carried out a test with a vertical feed line and a horizontal feed line on a pole pushed out an upstairs windows. In both cases the antenna was in the same positio
