0:01
Please enable Javscript
Morse code letter "u", amateur ham radio
0:01
Please enable Javscript
Radio with weak signal, morse code letter "e", military
0:01
Please enable Javscript
Morse code number zero, military
0:03
Please enable Javscript
Radio with a weak signal, morse code emergency SOS, twice, military
0:03
Please enable Javscript
Morse code number 6, amateur ham radio
0:01
Please enable Javscript
Morse code: letter a
0:01
Please enable Javscript
Morse code: letter k
0:01
Please enable Javscript
Radio with a weak signal, morse code number three, military
0:01
Please enable Javscript
Morse code: number one
0:01
Please enable Javscript
Morse code: l