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Author Topic: Unid 4 rising tones  (Read 968 times)

Offline Ary-B

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Unid 4 rising tones
« on: March 15, 2019, 0517 UTC »
Heard on 7506 kHz between ca 1900 and still going on at 2350z: 4 rising tones. Fair signal in Holland and Argentina



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