Stefan schrieb: 1/sqrt(d) is doing better than 1/d, so far with just one data point to go by. There is also an attenuation factor. Approx 3dB per 1000km in daylight, and 2dB/1000km at night, at 10kHz
After my post yesterday I realised there is one more thing I can do here to the rx. I have an E-field rx running too, if this was combined coherently with the loop antenna, some further directivity m
Dear group, We can be optimistic about further successes in the VLF sector i think. The most enjoyable finding (within ham experiments)is, that the E field decay relly seems to be rather ~ 1/sqrt(d)
Paul, LF, Which gain can be achieved with accuarte coupled multi loop receiving antennas? You told us you have a RX antenna out of 2 loops, coupled in a special way. Is it possible to built a loop th
Dear Stefan, LF Group, The soundcard output from the Spec Lab digimode terminal is a sine wave, about 2v pk - pk from my PC. But a simple limiting amplifier between soundcard output and gate driver i
