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Home > Exam Questions > ATPL - Airline Transport Pilot license > Radio Navigation > Why is a secondary radar display screen free of storm clutter?

182 - ATPL - Why is a secondary radar display screen free of storm clutter?

Question 182 - Radio Navigation - ATPL - Airline Transport Pilot license

The principle of 'echo' return is not used in secondary radar

The frequencies employed are too low to give returns from moisture sources

A moving target indicator facility suppresses the display of static or near static returns

The frequencies employed are too high to give returns from moisture sources

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