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Tracking Radar – 1 – 2

6. Sequential lobing means :

(a) switching antenna beam alternatively between two positions
(b) range direction
(c) measure of velocity
(d) measure of Doppler shift

ANSWER

EXPLANATION

7. The source of errors in tracking are :

(a) bias errors
(b) medium errors
(c) elevation errors
(d) bias, medium, elevation and servo loss errors

ANSWER

EXPLANATION

8. Each scan cycle requires the reception of :

(a) at least 2 target echoes
(b) at least 1 target echo
(c) at least 3 target echoes
(d) at least 4 targets echoes

ANSWER

EXPLANATION

9. In conical scan radar, the beam is :

(a) rotated continuously
(b) rotated in 2 steps
(c) rotated in 4 steps
(d) rotated in 360 steps

ANSWER

EXPLANATION

10. The angular tracking accuracy is improved by :

(a) antenna narrow beams,
(b) antenna broad beams
(c) wide transmitting pulse
(d) low frequency

ANSWER

EXPLANATION

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