Bill Meara, producer of the popular SolderSmoke Podcast, recently recorded audio echoes on a couple of his home brew regenerative receivers. Bill posted the following video, of his regen receiver tuned to China Radio International:
The fact that Bill measured a .133 second delay (the amount of time it would take for a signal to circle the globe), makes me believe he’s hearing an echo similar to Lyle. But I must admit, I’m a bit amazed that a faint AM echo could penetrate blowtorch signals like CRI and Brother Stair’s relay generate State side.
Readers:What’s going on here? Is Bill catching rare propagation openings–or perhaps ducting in the Earth’s magnetosphere and ionosphere–or is there another explanation?
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