0:03
Shortwave radio - foreign voice speaking 8.
0:06
Shortwave radio - foreign voice speaking 7.
0:05
Shortwave radio - foreign voice speaking 6.
0:08
Shortwave radio - foreign voice speaking 5.
0:04
Shortwave radio - foreign voice speaking 4.
0:07
Shortwave radio - foreign voice speaking 3.
0:08
Shortwave radio - foreign voice speaking 2.
0:04
Shortwave radio - foreign voice speaking 1.
0:12
Shortwave radio - super low frequency.
1:16
Shortwave radio - very high Morse signal.
1:52
Shortwave radio - sweeping - frequency repeater.
1:34
Shortwave radio - Morse code - slow signal - mid.
0:36
Shortwave radio - noise - pulsing - low mid.
0:34
Shortwave radio - modem - data signals.
2:48
Shortwave radio - voice counting signal.
0:16
Shortwave radio - mid - noise.
1:12
Shortwave radio - voice test - counting - '1 2 3'.
0:12
Shortwave radio - signal - data bursts.
0:58
Shortwave radio - mid - static - distorted voice - signal.
0:54
Shortwave radio - various signals and voice.