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Posted by David Todd on January 22, 2026 at 01:51:37.
In Reply to: Re: Loop posted by Ed Holland on December 21, 2025 at 08:08:29.
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My own experiments since im ex military, the lower the frequency the closer to the ground our antennas were to pick up surface waves and signals that push thru the lower levels of earth. Yes there are atmospheric signals and such but if you push probes into the earth and run it to an amp and ur receiver or just a receiver/amp that can receive the given frequency, you will find you can receive the lf,vlf.elf signals better if you can pick them up.kind of like the stubblefield experiments. was able to communicate over great distances with probes into the dirt. my unit in the military use elf transmissions and to receive them we buried our antennas into the earth so they were not able to be spotted by anyone on recon. we had full sized dipoles, long wires etc and we ran cw digital and SSB on various frequencies. we had especially good luck with loops about 1 ft off ground and also some were buried. Also depends on the type of soil
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