What type of antenna is used in an...

Question 1 / 20eaiMmkHnEpLxPoZn4BVq

Question 1 of 20eaiMmkHnEpLxPoZn4BVq

What type of antenna is used in an aircraft’s Instrument Landing System (ILS) marker beacon installation?

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Question 1 of 20

eaiMmkHnEpLxPoZn4BVq

What type of antenna is used in an aircraft’s Instrument Landing System (ILS) marker beacon installation?

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🔍 Key Concepts

• ILS marker beacons: purpose and how they transmit signals to aircraft • Typical antenna patterns for marker beacons (directional vs. omnidirectional) • Common antenna types used for VHF/UHF navigation aids (dipole, loop, phased array)

💭 Think About

• Think about whether a ground-based marker beacon for ILS needs to aim a narrow beam or cover aircraft flying along the approach path overhead. • Consider which antenna types are usually simple, robust, and suitable for fixed-frequency navigation beacons near 75 MHz. • Ask yourself: is the marker beacon primarily a transmitting device or a receiving device in normal ILS operation, and how does that affect antenna choice?

✅ Before You Answer

• Verify what frequency band (~75 MHz) ILS marker beacons operate on and which antenna types match that band well. • Check whether a marker beacon is expected to produce a narrow directional lobe or a broad, essentially vertical/omnidirectional field under the aircraft. • Confirm whether terms like "reception antenna" fit the role of the marker beacon installation on the ground.

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Question 1 of 20

What type of antenna is used in an aircraft’s Instrument Landing System (ILS) marker beacon installation?

An electronically steerable phased-array antenna that radiates a directional antenna pattern.

A folded dipole reception antenna.

A balanced loop reception antenna.

A horizontally polarized antenna that radiates an omnidirectional antenna pattern.

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Question 1 / 20eaiMmkHnEpLxPoZn4BVq

Question 1 of 20eaiMmkHnEpLxPoZn4BVq

What type of antenna is used in an aircraft’s Instrument Landing System (ILS) marker beacon installation?

Back

Question 1 of 20

eaiMmkHnEpLxPoZn4BVq

What type of antenna is used in an aircraft’s Instrument Landing System (ILS) marker beacon installation?

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?

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