Long-Delayed Echoes
Long-Delayed Radio Echoes (LDE)
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LDE articles and reports about long delayes radio echoes by DF5AI -
15 possible explanations for Long Delayed Echoes by University of Oslo -
Long delayes radio echoes reports -
Long-delayed echoes are radio echoes which return to the sender several seconds after transmission. -
LA3ZA on magnetospheric ducting as an explanation for delayed signals on 3.5 MHz -
The Five Most Likely Explanations for Long Delayed Echoes -
This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.