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Questions for RADAR THEORY

Answer the following questions

1. In relation to radar systems that use pulse technology, the term 'Pulse Recurrence Rate (PRR)' signifies the
2. The advantage of the slotted antennas in modern radar techology is to
3. Complete the following statement. Aircraft Surface movement Radar operates on frequencies in the (i) ________ band employing an antenna that rotates at approximately (ii) _________ revolutions per minute; it is (iii) ___________ possible to determine the type of aircraft from the return on the radar screen
4. A ground radar transmitting at a PRF of 1200 pulses/second will have a maximum unambiguous range of approximately
5. Which combination of characteristics gives best screen picture in a primary search radar?
6. When an oerator increases the range on a radar display, in general?
7. The maximum range obtainable from an ATC Long range Surveillance Radar is approximately?
8. In which frequency band do must airborne weather, and ground based ATC, radar systems operate?
9. For any given circumstances, in order to double the effective range of a primary radar the power output must be increased by a factor of
10. Ignoring pulse length and fly-back, a radar facility designed to have a maximum unambiguous range of 50 km will have a PRF (pulses per second) of
11. The prime factor in determining the maximum unambiguous range of a primary radar the
12. Ignoring the pulse length and the fly-back, a radar facility designed to have a maximum unambiguous range of 50 km will have a PRF (pulse per second) of?
13. On which of the following radar displays is it possible to get an indication of the shape, and to some extent the type, of the aircraft generating the return?
14. Comparing a parabolic reflector with a flat plate antenna of the same size?
15. The maximum range of primary radar depends on
16. What information may be displayed on an ATC radar screen connected only to primary radar system?
17. The theoretical maximum range for an Airborne Weather Radar is determined by the
18. Ignoring pulse length, the maximum pulse repetition frequency (PRF) that can be used by a primary radar facility to detect targets unambiguously to a range of 200 NM is? (pps = pulses per second)
19. Ignoring pulse length, the maximum pulse repetition frequency (PRF) that can be used by a primary radar facility to detect targets unambiguously to a range of 200 nm is? (pps = pulses per second)
20. In a primary radar using pulse technique, pulse length determines
21. Considering a primary radar system, what kind of aerials are used?
22. A radar facility transmitting at a Pulse Recurrence Frequency (PRF) of 1500 pulses/second will have a maximum unambiguous range or approximately
23. Which one of the following statements is correct concerning the use in primary radar of continuous wave transmissions as compared with pulse transmissions?
24. Assuming sufficient transmission power, the maximum range of a ground radar with a pulse repetition frequency of 450 pulses per second is: (Give: velocity of light is 300 000 km/second)
25. Echoes that do not change in distance from the antenna (relative speed zero) of a ground radar with a Moving Target Indicator (MIT) are dangerous for the following reason?
26. In a primary radar using pulse technique, pulse recurrence frequency (PRF) pulse recurrence rate (PRR) determines
27. In a primary pulse radar you have?
28. In a primary radar using pulse technique, the ability to discriminate between targets in azimuth is factor of
29. The maximum pulse repetition frequency (PRF) that can be used by a primary radar facility in order to detect targets unambiguously at a range of 50 NM is? (pps = pulses per second)
30. A radio altimeter employing a continuous wave signal would have?
31. Which of the following radar equipments operate by means of the pulse technique? 1. Aerodrome Surface Movement Radar. 2. Airborne Weather Radar. 3. Secondary Survellance Radar (SSR). 4. Aerodome Survellance (approach) Radar
32. The maximum pulse repetition frequency (PRF) that can be used by a primary radar facility to detect targets unambiguously to a range of 50 nm is?
33. Assuming sufficient transmission power, the maximum range of a ground radar with a pulse repetition rate of 450 pulses per second is? (Given: Velocity of light = 300 000 km/sec.)
34. The main factor which determines the minimum range that can be measured by a pulsed radar is pulse
35. The maximum range obtainable from an ATC Long Range Surveilance Radar is approximately
36. Which of the following equipments uses primary radar principles?
37. Which of the following types of radar systems are most suited for short range operation?
38. A Primary radar operates on the principle of
39. The minimum range of a primary radar, using the pulse technique, is determined by the (i) ______; the maximum unambiguous range by the (ii) _______
40. In a primary pulse radar you have?
41. A ground radar transmitting at a PRF of 1200 pulse/second will have a maximum unambiguous range of approximately?