@eighthourlunch@mastodon.social
Post #1725722
2026-04-21 01:28 UTC
I've been seeing this rope-like signal in 40m for the last couple of days. Anybody know what it is?
#sdr #amateurradio #ham
Replies (4)
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@praxiscode@mastodon.online 2026-04-21 02:06
What does https://sigidwiki.com say? @eighthourlunch@mastodon.social
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@ginimod@mastodon.social 2026-04-21 03:15
@eighthourlunch@mastodon.social The aliens finally responding to my S.O.S
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@laund@wetdry.world 2026-04-21 08:57
@eighthourlunch@mastodon.social Looks almost like some of the artifacts of whats probably some kind of over-the-horizon (OTH) radar i've seen. I can't tell whether it would be the main signal, or intermodulation/harmonics. You might be able to find a stonger signal with the same/a similar pattern One possible OTH radar: https://www.sigidwiki.com/wiki/29B6_%27Kontayner%27_OTH_Radar
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@Quantensalat@scicomm.xyz 2026-04-21 10:30
@eighthourlunch@mastodon.social Yes saw something too, the standard guess is over tge horizon radars i'd say