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NAEST Rev 1b - EM Waves, Radar & ARPA ver2 (clean) Questions with Correct Answers
NAEST Rev 1b - EM Waves, Radar & ARPA ver2 (clean) Questions with Correct Answers 
With more range and bearing information available, ARPA tracking window gets progressively 
Select one: 
a. Smaller 
b. Bigger 
c. Stays the same in size 
d. circular - Correct Answer a 
 
Radar horizon is larger than TH 
Select one: 
a. 25% 
b. 20% 
c. 15% 
d. 10% - Correct Answer c 
 
ARPA Operators are advised to allow approximately one minute of steady tracking before using the track data (course, speed, CPA, ...