Ace Your 2025 Instrument Ground School – Soar High with the IRA Enroute Challenge!

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What is the designated altitude for a fix when the reception of signals from a radio facility is inadequate at the MEA?

MOCA

MRA

The designated altitude for a fix when the reception of signals from a radio facility is inadequate at the Minimum Enroute Altitude (MEA) is referred to as the Minimum Reception Altitude (MRA). This altitude is established to ensure that pilots can adequately receive navigation signals from the applicable radio facility, thereby ensuring safety and reliability during flight operations.

MRA is specifically designed to account for areas where the navigation signal may be weak or obstructed, providing an essential altitude that guarantees signal reception for effective navigation and communication. This is particularly important in locations where terrain or other factors may interfere with the clarity of the signals being received.

Understanding the significance of MRA helps pilots maintain situational awareness and make informed decisions while navigating in environments where earlier altitudes may not guarantee reliable communication.

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