Aircraft Emergency Locator Transmitters...

Question 1 / 20TzXsXm5nCkPeKMnCu01A

Question 1 of 20TzXsXm5nCkPeKMnCu01A

Aircraft Emergency Locator Transmitters (ELT) operate on what frequencies?

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Question 1 of 20

TzXsXm5nCkPeKMnCu01A

Aircraft Emergency Locator Transmitters (ELT) operate on what frequencies?

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🔍 Key Concepts

• Emergency Locator Transmitters (ELTs) are used on aircraft, not ships, but mariners are expected to recognize their distress frequencies • Older aviation distress beacons used two VHF frequencies related to marine/aviation distress • Modern satellite alerting for ELTs involves a 406 MHz signal received by COSPAS-SARSAT satellites

💭 Think About

• Which of these frequencies are traditionally associated with manned voice distress and homing (civilian and military)? • Which frequency in the list is specifically used for modern digital satellite alerting of distress beacons (EPIRBs, PLBs, and ELTs)? • Think about how older ELTs were designed versus newer 406 MHz ELTs—what combination of frequencies would make sense for both local homing and satellite detection?

✅ Before You Answer

• Identify which options include both the traditional distress/homing frequencies and the modern 406 MHz satellite alerting frequency • Eliminate any option that contains only the old analog distress frequencies without 406 MHz • Confirm that the choice you pick matches what you’ve heard about newer 406 MHz ELTs and how SAR (search and rescue) units home in on them using 121.5 MHz

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Question 1 of 20

Aircraft Emergency Locator Transmitters (ELT) operate on what frequencies?

121.5 MHz.

243 MHz.

121.5 and 243 MHz.

121.5, 243 and 406 MHz.

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Question 1 / 20TzXsXm5nCkPeKMnCu01A

Question 1 of 20TzXsXm5nCkPeKMnCu01A

Aircraft Emergency Locator Transmitters (ELT) operate on what frequencies?

Back

Question 1 of 20

TzXsXm5nCkPeKMnCu01A

Aircraft Emergency Locator Transmitters (ELT) operate on what frequencies?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed