The radio distress frequency is used for which service?

Prepare for the NTC Restricted Radiotelephone Operator’s Certificate (RROC) - Aircraft Test. Study with flashcards and multiple-choice questions, each with hints and explanations. Ensure success on your examination!

Multiple Choice

The radio distress frequency is used for which service?

Explanation:
Distress frequencies are reserved for emergency voice calls, so the service used is radiotelephone. In an aviation emergency, a transmission on the distress channel is a voice call to request assistance and coordinate search-and-rescue efforts. Telex, fax, and data link are data-transfer services, not for emergency voice communications, so they aren’t the proper use of the radio distress frequency. (Note: while 406 MHz beacons provide satellite distress alerts, the traditional radio distress channel for voice is the radiotelephone service on the designated frequency.)

Distress frequencies are reserved for emergency voice calls, so the service used is radiotelephone. In an aviation emergency, a transmission on the distress channel is a voice call to request assistance and coordinate search-and-rescue efforts. Telex, fax, and data link are data-transfer services, not for emergency voice communications, so they aren’t the proper use of the radio distress frequency. (Note: while 406 MHz beacons provide satellite distress alerts, the traditional radio distress channel for voice is the radiotelephone service on the designated frequency.)

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