Yesterday I spent some time playing with different antennae. I started by laying out another wire 52m long orientated roughly north/south and then I shortened my original wire also to be 52m and this
Hello Tony, Thanks for that interesting work! Could you extend the measurements to the VLF band? It would be interesting what the levels and directivity would be there. 73 and pse a sked for your upc
Hi Tony, This is very fine! Probably you monitored DHO38 @ 23,4 kHz (TX in nothern Germany). So it is once again confirmed that the antenna behaves rather like a loop antenna. Additionaly the signal
Hi Tony, In addition to my previous introduction I forgot to say a moint : (3)There is a length dependency. The two electrodes earth anntena of 2 times long can be received 3 dB up. Confirm the above
Hi Tony, Thanks for the confirmation on directivity of the two electrodes earth antenna. The JA5FP's group said as follows: (1)Same directivity exists in a short distance. (2)Dried earth is good for
Hi Stefan I tried the antennae this afternoon on 23 KHz and the E/W wire is 12dB up on the N/S wire. I have no idea what I was receiving as I was using a FRG-7700 which only displays to the nearest K
Hi Stefan, I's too fast to deside H field antenna rather than E field antenna. It is a phenomena that wet ground makes weak signal rather than dry ground with a same two electrodes earth antenna. Doe
Your findings also tie up with mine Tony. On 136kHz the 20m spaced TX earth electrode behaves as a loop in terms of far field directionality with nulls orthogonal to the line of the electrodes and st
