White noise:
-
Morse code, SOS signal transmission
-
Geiger counter
-
Radio noise
-
Electronic signal
-
Low frequency electronic signal
-
High frequency signal
-
Low frequency pulsing and humming signal
-
Morse code transmission
-
Horrifying throbbing low-frequency rumble
-
Reception, transfer, Morse code
-
Low-frequency rumble, high-frequency squeak
-
Interference Broadcasting
★★★★★