Which of the following statements is true regarding secondary radar?

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Multiple Choice

Which of the following statements is true regarding secondary radar?

The statement regarding secondary radar that is true is that it detects position based on transponder signals. Secondary radar systems rely on the transmission of a signal from ground stations to an aircraft's transponder, which then responds with information that includes the aircraft's location, altitude, and other data. This interaction allows secondary radar to provide more precise tracking of aircraft compared to primary radar, which simply detects the radar reflection from the aircraft itself. Secondary radar is particularly effective because it requires the aircraft to have a transponder, which enhances the accuracy of the data received. This capability allows air traffic controllers to maintain better situational awareness of aircraft positions, importantly in congested airspace. The other options are not accurate representations of secondary radar's functionality. For example, while it does not track all aircraft—specifically those without transponders—its weather dependency is not relevant to its basic operational abilities, and its range can often exceed that of primary radar in certain conditions.

The statement regarding secondary radar that is true is that it detects position based on transponder signals. Secondary radar systems rely on the transmission of a signal from ground stations to an aircraft's transponder, which then responds with information that includes the aircraft's location, altitude, and other data. This interaction allows secondary radar to provide more precise tracking of aircraft compared to primary radar, which simply detects the radar reflection from the aircraft itself.

Secondary radar is particularly effective because it requires the aircraft to have a transponder, which enhances the accuracy of the data received. This capability allows air traffic controllers to maintain better situational awareness of aircraft positions, importantly in congested airspace.

The other options are not accurate representations of secondary radar's functionality. For example, while it does not track all aircraft—specifically those without transponders—its weather dependency is not relevant to its basic operational abilities, and its range can often exceed that of primary radar in certain conditions.

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