Can anyone remember what the first claimed 73kHz QSO was . I seem to remember it was a few tens of metres across a car park, probably in 1996 (Strictly, that was a capacitor not radiation, but...)
First true free running single pass data TA decode on 73 K -43 , right on the lower limit, but 9% fade [data loss] very stable path 02:25 73 WG2XRS de DL-SWL Op65 -43 dB F:9% in nr Wolfsburg More loc
Hello Andy. Not about the first claimed 73kHz QSO, but just for info the first time I heard Peter G3LDO on 73.4 kHz normal CW ( 338 km ) was around november / december 1996. Later, I had my first xba
Hello Andy, I think that G3YXM at wireless dot org dot uk might be able to help you as he has a lot of information on LF at http://www.wireless.org.uk/ Regards Lawrence
As a rule of thumb, the near / far field transition is taken to be lambda/ 2.pi Where the reactive fields are down to below the level of the radiation . So for 137kHz that lies at 350m and for