Unknown 13p500 signal with rhythmic beeps in random intervals

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Unknown 13p500 signal with rhythmic beeps in random intervals
Image 2025-10-24 164643445.png
Frequencies 13.5 MHz
Frequency Range 13.5 MHz - 13.5 MHz
Mode AM (Likely FM because of its size though)
Modulation
ACF
Bandwidth 100 kHz
Location Irvine, California, United States
Short Description I think this could just be interference but the rhythmic beeps make me think it isn't. The sound closely resembles a clown horn.
I/Q Raw Recording
Audio Sample