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Posted by Bruce WA1HGJ on January 24, 2026 at 13:41:16.
In Reply to: Re: VLF communications through earth's crust posted by Gedas W8BYA on January 23, 2026 at 21:54:12.
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Thanks very much, Gedas. Interesting to learn about the sub-9 kHz io group (with 71 members) although I note the last message posted there was August 2022. Still, it piqued my curiosity so have been doing a bit of further armchair searching. Here’s a link to receipt of a transatlantic QRP signal on 8.27 kHz. Interesting stuff! www.arrl.org/news/tiny-lf-signal-makes-the-hop-from-newfoundland-to-the-uk 73, Bruce WA1HGJ
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