. . . "1117501828"^^ . . . . . "\u822A\u7A7A\u5E94\u6025\u9891\u7387\uFF08\u82F1\u8A9E\uFF1Aaircraft emergency frequency\uFF0C\u4E5F\u79F0GUARD\uFF09\u662F\u822A\u7A7A\u6CE2\u6BB5\u4E0A\u4FDD\u7559\u7684\u4E00\u4E2A\u7528\u4E8E\u98DE\u673A\u901A\u4FE1\u7684\u9891\u7387\u3002\u6C11\u7528\u7684\u8BE5\u9891\u7387\u4E3A121.5 MHz\uFF0C\u4E5F\u79F0\u56FD\u9645\u822A\u7A7A\u9047\u9669\u4FE1\u53F7\uFF08International Air Distress\uFF0CIAD\uFF09\u6216\u751A\u9AD8\u9891\u5B88\u542C\uFF08VHF Guard\uFF09\uFF1B\u800C243.0 MHz\u5219\u4F9B\u519B\u4E8B\u7528\u9014\uFF0C\u4E5F\u79F0\u519B\u7528\u822A\u7A7A\u9047\u9669\u4FE1\u53F7\uFF08Military Air Distress\uFF0CMAD\uFF09\u6216\u7279\u9AD8\u9891\u5B88\u542C\uFF08UHF Guard\uFF09\u3002\u65E9\u671F\u7684\uFF08ELT\uFF09\u4F7F\u7528\u5B88\u542C\u9891\u7387\u53D1\u4FE1\uFF0C\u4F46\u66F4\u73B0\u4EE3\u7684\u5E94\u6025\u5B9A\u4F4D\u53D1\u5C04\u673A\u5DF2\u6539\u7528406 MHz\u9891\u7387\u3002"@zh . . . "1289185"^^ . . . . . . . . . "4236"^^ . . "121,5 MHz ist eine Funkfrequenz des Mobilen Flugfunkdienstes (R) (117,975 bis 136 MHz) im VHF-Frequenzbereich. Gesendet und empfangen wird in der Betriebsart Amplitudenmodulation. Im Bereich der Flugsicherung wird sie auch als Guard bezeichnet."@de . . . . . . "121,5 MHz"@de . "Transmission of a distress beacon on 121.5 MHz and 243 MHz"@en . . . . "\u822A\u7A7A\u5E94\u6025\u9891\u7387\uFF08\u82F1\u8A9E\uFF1Aaircraft emergency frequency\uFF0C\u4E5F\u79F0GUARD\uFF09\u662F\u822A\u7A7A\u6CE2\u6BB5\u4E0A\u4FDD\u7559\u7684\u4E00\u4E2A\u7528\u4E8E\u98DE\u673A\u901A\u4FE1\u7684\u9891\u7387\u3002\u6C11\u7528\u7684\u8BE5\u9891\u7387\u4E3A121.5 MHz\uFF0C\u4E5F\u79F0\u56FD\u9645\u822A\u7A7A\u9047\u9669\u4FE1\u53F7\uFF08International Air Distress\uFF0CIAD\uFF09\u6216\u751A\u9AD8\u9891\u5B88\u542C\uFF08VHF Guard\uFF09\uFF1B\u800C243.0 MHz\u5219\u4F9B\u519B\u4E8B\u7528\u9014\uFF0C\u4E5F\u79F0\u519B\u7528\u822A\u7A7A\u9047\u9669\u4FE1\u53F7\uFF08Military Air Distress\uFF0CMAD\uFF09\u6216\u7279\u9AD8\u9891\u5B88\u542C\uFF08UHF Guard\uFF09\u3002\u65E9\u671F\u7684\uFF08ELT\uFF09\u4F7F\u7528\u5B88\u542C\u9891\u7387\u53D1\u4FE1\uFF0C\u4F46\u66F4\u73B0\u4EE3\u7684\u5E94\u6025\u5B9A\u4F4D\u53D1\u5C04\u673A\u5DF2\u6539\u7528406 MHz\u9891\u7387\u3002"@zh . . . . . "The aircraft emergency frequency (also known as GUARD) is a frequency used on the aircraft band reserved for emergency communications for aircraft in distress. The frequencies are 121.5 MHz for civilian, also known as International Air Distress (IAD) or VHF Guard, and 243.0 MHz\u2014the second harmonic of VHF guard\u2014for military use, also known as Military Air Distress (MAD) or UHF Guard. Earlier emergency locator transmitters (ELTs) used the guard frequencies to transmit, but an additional frequency of 406 MHz is used by a more modern emergency locator transmitter."@en . . . . . "Radio beacon of distress on 121,5 MHz.ogg"@en . . . . . . "\u822A\u7A7A\u5E94\u6025\u9891\u7387"@zh . . . . "La fr\u00E9quence GUARD (121,5 MHz) est la fr\u00E9quence VHF a\u00E9ronautique d'urgence dans le monde entier. La fr\u00E9quence a\u00E9ronautique auxiliaire 123,1 MHz (auxiliaire de la fr\u00E9quence a\u00E9ronautique d'urgence 121,5 MHz) est destin\u00E9e \u00E0 \u00EAtre utilis\u00E9e par les stations du service mobile a\u00E9ronautique et par d'autres stations mobiles et terrestres engag\u00E9es dans des op\u00E9rations coordonn\u00E9es de recherche et sauvetage. Les stations mobiles du service mobile maritime peuvent communiquer avec les stations du service mobile a\u00E9ronautique sur la fr\u00E9quence a\u00E9ronautique d'urgence 121,5 MHz exclusivement pour la d\u00E9tresse et l'urgence et sur la fr\u00E9quence a\u00E9ronautique auxiliaire 123,1 MHz pour les op\u00E9rations coordonn\u00E9es de recherche et sauvetage, en \u00E9mission de classe A3E pour les deux fr\u00E9quences. Elles doivent alors se conformer aux arrangements particuliers conclus par les gouvernements int\u00E9ress\u00E9s et r\u00E9gissant le service mobile a\u00E9ronautique."@fr . . . . "Modulation of a radio beacon of distress"@en . . . . "Fr\u00E9quence GUARD"@fr . . "121,5 MHz ist eine Funkfrequenz des Mobilen Flugfunkdienstes (R) (117,975 bis 136 MHz) im VHF-Frequenzbereich. Gesendet und empfangen wird in der Betriebsart Amplitudenmodulation. Im Bereich der Flugsicherung wird sie auch als Guard bezeichnet."@de . . "Aircraft emergency frequency"@en . . . . . . . . . . . "The aircraft emergency frequency (also known as GUARD) is a frequency used on the aircraft band reserved for emergency communications for aircraft in distress. The frequencies are 121.5 MHz for civilian, also known as International Air Distress (IAD) or VHF Guard, and 243.0 MHz\u2014the second harmonic of VHF guard\u2014for military use, also known as Military Air Distress (MAD) or UHF Guard. Earlier emergency locator transmitters (ELTs) used the guard frequencies to transmit, but an additional frequency of 406 MHz is used by a more modern emergency locator transmitter."@en . . . "La fr\u00E9quence GUARD (121,5 MHz) est la fr\u00E9quence VHF a\u00E9ronautique d'urgence dans le monde entier. La fr\u00E9quence a\u00E9ronautique auxiliaire 123,1 MHz (auxiliaire de la fr\u00E9quence a\u00E9ronautique d'urgence 121,5 MHz) est destin\u00E9e \u00E0 \u00EAtre utilis\u00E9e par les stations du service mobile a\u00E9ronautique et par d'autres stations mobiles et terrestres engag\u00E9es dans des op\u00E9rations coordonn\u00E9es de recherche et sauvetage. Les stations mobiles du service mobile maritime peuvent communiquer avec les stations du service mobile a\u00E9ronautique sur la fr\u00E9quence a\u00E9ronautique d'urgence 121,5 MHz exclusivement pour la d\u00E9tresse et l'urgence et sur la fr\u00E9quence a\u00E9ronautique auxiliaire 123,1 MHz pour les op\u00E9rations coordonn\u00E9es de recherche et sauvetage, en \u00E9mission de classe A3E pour les deux fr\u00E9quences. Elles doivent alors se con"@fr .