Unidentified strange signal 554 kHz

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Unidentified strange signal 554 kHz
2026-07-23T21 24 50Z 554.00.png
Frequencies 550 kHz,558 kHz
Frequency Range 550 kHz - 558 kHz
Mode
Modulation
ACF
Bandwidth 8.5 kHz
Location Seoul, Republic of Korea
Short Description Possible a digitally encrypted signal or local interference
I/Q Raw Recording Download file
Audio Sample

I received this strange signal through a Korean KiwiSDR receiver, and I suspect it is a digitally encrypted signal or local interference

Samples[edit]


Additional Images[edit]