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8.7605kHz earth-mode reception at 6km across the fens |
My personal DX record for VLF earth-mode (through ground conduction/induction) at 8.7605kHz has been pushed up to
6km today using a long carrier transmission with periodic ID breaks and Spectrum Laboratory software with bandwidth of 11mHz on receive. Transmit power was 5W from a TDA2003 transmitter.
See
https://sites.google.com/site/sub9khz/earthmode/vlf-xbm-blog
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