This week I've restarted tests using 3-4W into my 10m spaced grounded electrodes at 1-9kHz. On receive I'm using an 80cm loop into a Sallen-Key active HPF followed by 3 stages of audio gain into a cr
Hello Roger, this may work in the flat field. Here in the city a 30m earth base worked worse than my unmatched 10h/20t T-Antenna. With this the signal was audible in 100 to 200 m (about 300W at 8,9kH