Radio signals
Set up the radio (5)
Radio noise (3)
Morse code, receiving, transmitting (1)
Morse code, reception (4)
Morse code, SOS signal reception (2)
Morse code, SOS signal transmission (1)
Morse Code, transmission (2)
Police walkie-talkie (7)
Geiger counter (2)
White noise (3)
Pink Noise (1)
Brown noise (1)
Electronic signal (27)
Digital audio signal (12)
Low-frequency electronic signal (2)
High-frequency squeak (2)
Computer interface, information reading signal (10)
Low frequency hum, high-frequency squeak (2)
Pulsating signal with low frequency and hum (8)
Terrifying pulsating low-frequency hum (1)
Electronic signal, energy build-up (2)
Pulsating electronic signal with high frequency (3)
Space Alien Radio Signal (7)
Radar, object location alert (1)
Computer interface, alarm (3)
Electronic communication signals, distress signal (1)
Communication room, computer noise (7)
Jammed radio broadcasting (1)
Computer simulation of a laser (1)
Alert signal on the spacecraft, hum (1)
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