Unknown Pulse Tones - 3012.001 MHz
From Signal Identification Wiki
2019-06-14 01:02 UTC
Detected several pulse tones from an unknown signal in the SHF (Super High Frequency) range from 3011.999 to 3012.001 MHzMegaHertz (MHz) 10^6 Hz with HackRF and ANT500 antenna.
Observed signal and after 45 minutes the signal then became a static tone at approximately 01:51 UTC.