viserfly

Questions for RADAR THEORY

Answer the following questions

1. The maximum range obtainable from an ATC Long Range Surveilance Radar is approximately
2. 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
3. Which combination of characteristics gives best screen picture in a primary search radar?
4. In a primary radar using pulse technique, pulse recurrence frequency (PRF) pulse recurrence rate (PRR) determines
5. The maximum range of primary radar depends on
6. 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
7. Which one of the following statements is correct concerning the use in primary radar of continuous wave transmissions as compared with pulse transmissions?
8. The prime factor in determining the maximum unambiguous range of a primary radar the
9. 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)
10. What information may be displayed on an ATC radar screen connected only to primary radar system?
11. Which of the following equipments uses primary radar principles?
12. A Primary radar operates on the principle of
13. The main factor which determines the minimum range that can be measured by a pulsed radar is pulse
14. 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)
15. In a primary radar using pulse technique, pulse length determines
16. In a primary radar using pulse technique, the ability to discriminate between targets in azimuth is factor of
17. A radar facility transmitting at a Pulse Recurrence Frequency (PRF) of 1500 pulses/second will have a maximum unambiguous range or approximately
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. The maximum range obtainable from an ATC Long range Surveillance Radar is approximately?
20. Which of the following types of radar systems are most suited for short range operation?
21. Considering a primary radar system, what kind of aerials are used?
22. The minimum range of a primary radar, using the pulse technique, is determined by the (i) ______; the maximum unambiguous range by the (ii) _______
23. In relation to radar systems that use pulse technology, the term 'Pulse Recurrence Rate (PRR)' signifies the
24. 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?
25. 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?
26. 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.)
27. 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
28. A ground radar transmitting at a PRF of 1200 pulse/second will have a maximum unambiguous range of approximately?
29. 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?
30. A radio altimeter employing a continuous wave signal would have?
31. 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)
32. When an oerator increases the range on a radar display, in general?
33. In which frequency band do must airborne weather, and ground based ATC, radar systems operate?
34. In a primary pulse radar you have?
35. 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?
36. The advantage of the slotted antennas in modern radar techology is to
37. A ground radar transmitting at a PRF of 1200 pulses/second will have a maximum unambiguous range of approximately
38. In a primary pulse radar you have?
39. 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
40. The theoretical maximum range for an Airborne Weather Radar is determined by the
41. Comparing a parabolic reflector with a flat plate antenna of the same size?