Unknown Alarm Type Sound 4770 Khz

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Unknown Alarm Type Sound 4770 Khz
Annotation 2019-10-12 140231.png
Frequencies 4.77 MHz
Frequency Range 0 Hz - 0 Hz
Mode USB
Modulation Unknown
ACF
Bandwidth 2.4 kHz
Location
Short Description Herd on the websdr University of Twente in the Netherlands. Sounds like a warning system of some kind. Im taking a guess that it is a weather warning system.
I/Q Raw Recording
Audio Sample