The ARPA may swap targets when automatically...

Question 1 / 2707066636ee928f7522a1c51919b

Question 1 of 2707066636ee928f7522a1c51919b

The ARPA may swap targets when automatically tracking if two targets are in which situation?

Question 1 of 27070

The ARPA may swap targets when automatically tracking if two targets are in which situation?

🔍 Key Concepts

• ARPA (Automatic Radar Plotting Aid) target acquisition and tracking logic • How ARPA distinguishes one target from another when their bearing and range change • Conditions that can cause target label swapping or jump on radar displays

💭 Think About

• Think about which situation makes it hardest for ARPA to tell two separate echoes apart on the radar screen itself, not just in theory. • Visualize the radar PPI: in which option would two distinct targets appear almost as if they were one, or keep overlapping? • Which factor (bearing, range, or closeness of approach) most affects whether two radar blips can be separated as unique targets?

✅ Before You Answer

• For each choice, picture two radar blips on the screen and how their relative positions change over time. • Ask: in which option are the two targets most likely to merge or overlap on the radar display? • Verify which condition most directly affects ARPA discrimination between targets: closeness, same range, same bearing, or reciprocal bearings.

Question 1 of 27070

The ARPA may swap targets when automatically tracking if two targets are in which situation?

The targets pass close together

The targets are tracked on reciprocal bearings

The targets are tracked at the same range

The targets are tracked on the same bearing

Question 1 / 2707066636ee928f7522a1c51919b

Question 1 of 2707066636ee928f7522a1c51919b

The ARPA may swap targets when automatically tracking if two targets are in which situation?

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Question 1 of 27070

The ARPA may swap targets when automatically tracking if two targets are in which situation?