500 kHz
The radio frequency of 500 kilohertz (500 kHz) has been an international calling and distress frequency for Morse code maritime communication since early in the 20th century. For most of its history, the international distress frequency was referred to by its equivalent wavelength, 600 meters, or, using the earlier frequency unit name, 500 kilocycles (per second) or 500 kc.
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2182 kHz500500 KHz500 kc500kHz600 meter band600m band630-meter bandACP 131Amateur radio frequency allocationsAuto alarmBroadcast to Allied Merchant ShipsCQDCamille TissotDistress signalGlobal Maritime Distress and Safety SystemInternational distress frequencyLe Conquet radioLongwaveMaritime broadcast communications netMedium frequencyMorse codeNon-directional beaconRadio silenceRadio spectrumSOSSurvival radioTelegraphist
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500 kHz
The radio frequency of 500 kilohertz (500 kHz) has been an international calling and distress frequency for Morse code maritime communication since early in the 20th century. For most of its history, the international distress frequency was referred to by its equivalent wavelength, 600 meters, or, using the earlier frequency unit name, 500 kilocycles (per second) or 500 kc.
has abstract
500 kHz (600 meter) is de inte ...... tie via satellietverbindingen.
@nl
De manera temprana en el siglo ...... servicio de radioaficionados.
@es
Die Frequenz 500 kHz bzw. Well ...... quenz im maritimen Funkdienst.
@de
La fréquence de 500 kHz (désig ...... alie, Soudan, Tunisie, Yémen .
@fr
Nell'ambito del Servizio Radio ...... vi fosse in atto un soccorso.
@it
The radio frequency of 500 kil ...... reation of the 630-meter band.
@en
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1.022.253.229
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500 kHz (600 meter) is de inte ...... en, drie strepen, drie punten.
@nl
De manera temprana en el siglo ...... ciclos [por segundo] o 500 kc.
@es
Die Frequenz 500 kHz bzw. Well ...... quenz im maritimen Funkdienst.
@de
La fréquence de 500 kHz (désig ...... exploitation jusqu'à 1 000 km.
@fr
Nell'ambito del Servizio Radio ...... i o dubbi di qualsiasi genere.
@it
The radio frequency of 500 kil ...... cycles (per second) or 500 kc.
@en
label
500 kHz (maritime et aéronautique)
@fr
500 kHz
@de
500 kHz
@en
500 kHz
@it
500 kHz
@nl
Frecuencia de radio de 500 kilohertz
@es