Unknown Constant signal on 331.776 Mhz

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Unknown Constant signal on 331.776 Mhz
Screenshot 2024-06-15 211457.png
Frequencies 331.776 MHz
Frequency Range 331.776 MHz - 331.776 MHz
Mode LSB
Modulation N/A
ACF
Bandwidth 2.26 kHz
Location Sweden, Östergötland
Short Description

This is a constant quickly beeping signal. There does not seem to be any form of scheduling or pattern.

I've heard the signal many times, but have yet to figure out it's purpose or source.
I/Q Raw Recording
Audio Sample