17 Jul 2011

6km DX by VLF earth-mode today

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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