What frequencies do the three ILS components use?

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Prepare for the United Airlines Flight Simulator Technician Test with this comprehensive guide. Study with multiple-choice questions and detailed explanations to ace your exam and secure your dream career as a flight simulator technician with United Airlines!

Multiple Choice

What frequencies do the three ILS components use?

Explanation:
Understanding how ILS signals are separated by frequency helps you see why these components are paired with their bands. The Localizer operates in the VHF range, roughly 108.10 to 111.95 MHz, providing lateral guidance. The Glideslope uses the UHF range, about 329.15 to 335.0 MHz, for vertical guidance. Marker beacons sit at 75.0 MHz to mark approach points. These distinct bands keep the signals from interfering with one another. Frequencies like 50 GHz are far outside the ILS bands and not used for any ILS component.

Understanding how ILS signals are separated by frequency helps you see why these components are paired with their bands. The Localizer operates in the VHF range, roughly 108.10 to 111.95 MHz, providing lateral guidance. The Glideslope uses the UHF range, about 329.15 to 335.0 MHz, for vertical guidance. Marker beacons sit at 75.0 MHz to mark approach points. These distinct bands keep the signals from interfering with one another. Frequencies like 50 GHz are far outside the ILS bands and not used for any ILS component.

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