3D1X5 Volume 4 (URE)

1. What is the purpose of the truck stabilizers when you mount the AN/TPS–75 antenna in the back of a truck?

Course level the truck bed

Fine level the antenna pallet

Eliminate radiation hazard below truck bed

Eliminate the effects of the truck suspension system

2. What is used to dehydrate the AN/TPS75 waveguide air?

Paper filter

Silica sponge

Fiberglass filter

Desiccant canister

3. For how many nautical miles does the AN/TPS–75 radar set provides information on aircraft?

60

120

240

360

4. What type of antenna does the AN/TPS–75 radar set use?

Reflector

Phased array

Slotted waveguide

Truncated parabolic

5. How is the radar initialization function in the AN/TPS75 performed?

Manually by the operator

Manually at system power-up

Automatically at system power-up

Automatically by the radar control panel

6. The AN/TPS-75 waveguide is pressurized and dehydrated to

Keep out moisture and prevent arcing

Provide cooling and keep out moisture

Prevent arcing and enable high-voltage diplexing

Provide cooling and enable high-voltage diplexing

7. The sensitivity time control (STC) in the AN/TPS75 radar functions to

Reduce false alarms due to short-range clutter

Increase false alarms due to short-range clutter

Reduce false alarms due to long-range clutter

Increase false alarms due to long-range clutter

8. What is required to certify the AN/TPN–19 landing control central (LCC) equipment operation?

Flight check

Operations check

Commander’s signature

Chief of maintenance signature

9. What is the relationship of the stable local oscillator (STALO) frequency to the transmit frequency in the AN/TPS75 radar?

STALO is 16 MHz below the transmit frequency

STALO is 16 MHz above the transmit frequency

STALO is 32 MHz below the transmit frequency

STALO is 32 MHz above the transmit frequency

10. The final output of the AN/TPS75 transmitter's driver circuit is a

+320 VAC carrier

+28 volt video pulse

2.7 kW peak radio frequency (RF) PULSE

-117 kV modulating pulse

11. What AN/TPS-75 circuit ensures the pulse-forming network (PFN) output pulse has the same potential from pulse recurrence time (PRT) to PRT?

PFN bias reactor

PFN shunt regulator

Delta-wye autotransformer

Delta-wye saturable reactor

12. The height between two targets is called the

Relative height

Absolute height

Projected height

Difference height

13. Which term describes the blocking of all or a portion of the radar beam by an obstacle?

Blocking

Jamming

Screening

Interference

14. The monitoring fault isolation (MFI) operation is performed in the AN/TPS-75 radar during the radar

Live time of each pulse recurrence times (PRT)

Live time of every other PRT

Dead time of each PRT

Dead time of every other PRT

15. What are the pulse repetition time (PRT) modes for the AN/TPS75 radar?

Fixed, staggered, or burst

Fixed, staggered, or pulsed

Selected, controlled, or burst

Selected, controlled, or pulsed

16. The focus coil on the AN/TPS75 twystron is positioned around the tube's

Grid

Plate

Body

Cathode

17. On the AN/TPS75 antenna, how many of the 48 slotted sticks are used for transmitting?

12

22

36

48

18. What system in the AN/TPS75 radar transmits target track reports to an AN/TYQ23 operations module (OM)?

Track line driver

Report transfer interface

UYQ-27 situation display console

Modular control equipment interface group (MIG)

19. What is the term given when two or more identification friend or foe/selective identification feature (IFF/SIF) reply codes overlap and interfere with each other's time space?

Garble

Overstepping

Compacted video

Contiguous pulses

20. How many AN/TPN–19 operations shelters are required for a radar approach control (RAPCON) facility?

1

2

3

4

21. The AN/TPS75 north mark alignment insures that your antenna is oriented to within

 .25 degrees of north

 .5 degrees of north

 1 degree of north

 2 degrees of north

22. How many antenna rotation degrees is the jamming analysis and transmission system (JATS) jump signal generated in the AN/TPS75 radar?

180

360

405

540

23. One purpose for the AN/TPS75 radiate control interlock network is to

Ensure a definite turn-on sequence for the transmitter

Ensure transmitter shutdown in the event of hostile jamming

Provide automatic control of the transmitter pulse recurrence time (PRT) and frequency

Reduce the amount of test equipment needed for troubleshooting

24. What type of data does the weather/ECM/ inverse jamming amplitude versus azimuth (IJAVA) function process in the AN/TPS-75 radar to develop linear jam data?

Filtered I and Q moving target indicator (MTI) data

Filtered I and Q search data

Nonfiltered I and Q MTI data

Nonfiltered I and Q search data

25. In the AN/TPS-75 radar's identification friend or foe/selective identification feature (IFF/SIF) system, the interrogation sidelobe suppression (ISLS) control monitor's primary purpose is to provide

Side-lobe suppression

IFF/SIF interrogation pulses

Attenuation of close-in replies

Added gain for long-range replies

26. What is the frequency of the master clock signal, provided by the frequency generator to the processor timing generator in the AN/TPS75 radar?

4 MHz

8 MHz

16 MHz

32 MHz

27. What does the antenna pallet for the AN/TPS75 radar contains in the transit configuration?

Side-lobe reference antenna, rotary joint, and air conditioners

Side-lobe reference antenna, rotary joint, and IFF/SIF antenna

Receiver microwave components, radar antenna, and heat exchanger

Receiver microwave components, radar antenna, and drive components

28. The radio frequency (RF) signal used to drive the AN/TPS75 twystron is a

32 MHz CW pulse train

Single 0.833 usec RF pulse

13 usec, 6 element, 2-phase encoded pulse

6.8 usec, 13 element, 4-phase encoded pulse

29. What is the pressure range in the AN/TPS-75 waveguide?

2-7 psi

7-10 psi

24-27 psi

73-100 psi

30. The type of storage used for the program instructions in the AN/UYQ–27 is

Read-only memory (ROM)

Random-access memory (RAM)

Hard disk

Floppy disk

31. What is used as the final power amplifier in the AN/TPS75?

Traveling wave tubes (TWT)

Klystron

Twystron

Magnetron

32. What are the two primary inputs to the AN/TPS-75 final power amplifier (FPA)?

DC drive pulse and radio frequency (RF) pulse

RF pulse and focus coil voltage

DC drive pulse and vacuum pump voltage

Vacuum pump voltage and focus coil voltage

33. The gain of the AN/TPS-75's intermediate frequency (IF) receivers is varied dynamically by the analog control signals from the

Step attenuator

Frequency generator

Radar control microprocessor

Sensitivity time control (STC) interface

34. Where does/do the transition of data between the real-time and the processing-time circuits take place in the AN/TPS-75 radar target data post processing function?

Control unit

Beacon control

Video processor

First-in first-out (FIFO) buffer

35. In the AN/TPS-75 radar's identification friend or foe/selective identification feature (IFF/SIF) system, additional processing is used during Mode 4 IFF operations for

Random noise elimination

Encryption and decryption

Barrage jamming elimination

Phase and amplitude modulation

36. When accomplishing the north alignment for the AN/TPS–75, you should place the surveyor's transit as far from the antenna as possible without exceeding how many feet?

50

100

200

300

37. The range and azimuth correlation of identification friend or foe (IFF) and AN/TPS75 radar returns is accomplished in the

Intermediate frequency (IF) receivers

Post processor

Signal processor

Plan position indicator

38. What is the coherent oscillator frequency for the AN/TPS75?

32 MHz

74 MHz

93 MHz

101 MHz

39. What type of amplifiers are used on the AN/TPS-75 antenna to provide an initial 22 dB gain to the radio frequency (RF) echoes?

Pulsed traveling wave tubes (TWT)

Gaussian amplifiers

Parametric amplifiers

Low-noise amplifiers (LNA)

40. In the AN/TPS-75 radar, the primary beam selector in the height signal processing function formats a 64-bit word from the peak selector that contains the primary beam

Only

And one adjacent beam

And two adjacent beams

And three adjacent beams

41. In the AN/TPS-75 radar target data post processing function, when is data specifying the parameters of each IFF/SIF listening period processed?

At time-zero (T0)

At end-of-range (EOR)

Each antenna scan at 0

Each antenna scan at 180

42. In the AN/TPS–75, what unit is located in A1, the upper half of the modular control equipment interface group (MIG)?

Interrogator unit

Modem assembly

MCE interface electronics (MIE)

Radar electro-optical converter (REOC)

43. In the presence of local rainstorms or chaff, the video processing circuits in the AN/TPN–24 would automatically switch to which type of video?

Noncoherent moving target indicator (MTI)

Coherent MTI

Composite

Normal

44. What two AN/TPS75 circuits are used to produce the high-power, coded, radio frequency (RF) pulse that drives the twystron amplifier?

Frequency generator and driver

Video trigger driver and harmonic filter

Focus coil power supply and filament transformer

Vacuum pump power supply and automatic sequencer

45. What is the transmit frequency of the AN/TPN–24 radar?

2.5–2.7 GHz

2.7–2.9 GHz

2.9–3.1 GHz

3.1–3.3 GHz

46. What two circuits generate the high-voltage enabling pulse for the AN/TPS75 final power amplifier (FPA)?

Trigger amplifier and pulse-forming network (PFN)

Frequency generator and driver

Video trigger driver and harmonic filter

Focus coil power supply and filament transformer

47. What is monitored by the AN/TPS75's prime power protection circuit?

AC input power to the radar

Both 15 volt power supplies

-117 kV to the final power amplifier

+28V to the radiate control interlock network

48. The AN/TPS-75 transmitter coolant system is pressurized to

10 2 psi

20 4 psi

30 6 psi

40 8 psi

49. What is the AN/UPX–37's transmitter maximum power output in the separate transmitter configuration?

200W

400W

2000W

4000W

50. What is the system commonly referred to as when the AN/TPN–19 landing control central (LCC) is configured as a combination of the OK–235/T and the OK–236/T?

Ground control approach (GCA)

Operations (OPS) A

Operations (OPS) B

Radar approach control (RAPCON)

51. How many modes of communication are provided to the operator in the AN/TPS-75 radar by the communications system?

4

5

6

7

52. Relative range and bearing on the AN/UYQ–27 situation display indicate the range and bearing from

One target to another

The sweep origin to a target

The sweep origin to the cursor origin

The cathode ray tube’s (CRT) center to the sweep origin

53. What unit within the modular control equipment interface group (MIG) provides identification friend or foe/selective identification feature (IFF/SIF) target detection and extraction for the AN/TPS–75?

Integration side-lobe suppression (ISLS) control monitor

MCE interface electronics (MIE)

Radar electro-optical converter (REOC)

Voice communications access units (VCAU)

54. The maximum degree of ground slope for the AN/TPS75 radar antenna pallet is

4

6

10

15

55. The serial communication interface, part of the radar control function in the AN/TPS75, provides a link between the radar control unit and the

Six system microprocessors

Eight system microprocessors

Multibus and other system units

MCE interface group (MIG) rack, clutter mapper, and synchronizer

56. The type of information provided through the computer interface in the AN/UYQ–27 situation display is

Identification friend or foe (IFF) radar position data

Primary radar video data

Primary radar antenna position data

Digital target extractor (DTE) target data and computer graphics data

57. Microwave radios in the AN/TPN–24 airport surveillance radar (ASR) can be used to extend the communications coverage between ground controllers and aircraft when the

ASR shelter is set up in autonomous operation

Radio equipment within the operations shelter malfunctions

ASR shelter is combined with the operations shelter during normal ground control approach(GCA) operations

Radios within the ASR shelter cannot be operated remotely by the operations shelter

58. In the AN/TPN–25, where is the video from the moving target indicator (MTI) receiver processed to minimize signals from stationary or slow moving objects?

Signal data converter

Receiver front-end

Search receiver

Scan receiver

59. What is the source used to perform timing functions in the AN/TPN–25 transmitter?

Traveling-wave tube (TWT) driver trigger

Grid clamp pulse

Radio frequency (RF) pulse

Pulse repetition frequency (PRF) trigger

60. Which circuit in the AN/TPN–25 precision approach radar (PAR) is used to down-convert the three channels of received radio frequency (RF) energy to ultra high frequency (UHF) intermediate frequency (IF) signals?

Signal data converter

Receiver front-end

Search receiver

Scan receiver

61. What component of the AN/TPS–75 identification friend or foe/selective identification feature (IFF/SIF) subsystem provides the interrogation sidelobe suppression (ISLS) function?

Radar processor

KIR Mode 4 computer

AN/UPA–59A decoder group

OK–217/UPX control monitor

62. What type of amplifier is used in the AN/TPS75 transmitter's driver circuit?

Gaussian

Parametric

Pulsed traveling wave tubes (TWT)

Low-noise (LNA)

63. The interface between a remote AN/TPS75 radar and the AN/TYQ-23 operations module (OM) consists of

Fiber-optic cable for data and coaxial cable for voice

Wideband radios for data and coaxial cable for voice

Fiber-optic cable for data and narrowband radios for voice

Wideband radios for data and separate narrowband radios for voice

64. The AN/TPN–25 can process the range, elevation, and azimuth positions of up to how many targets?

4

6

8

10

65. In the AN/TPS-75, which component provides the discharge path for the pulse-forming network (PFN)?

Charging choke

PFN bias reactor

Trigger amplifier

Delta-wye transformer

66. What is the height of the AN/TPS-75 antenna's elevation beam pattern?

5

10

20

40

67. The AN/UPX–37 digital interrogator BIT provides fault isolation to the replaceable module for what percentage of faults?

95%

96%

97%

98%

68. How many AN/TPN–19 operations shelters are required for a ground control approach (GCA) facility?

1

2

3

4

69. Which of the following is not a characteristic of the transmitted pulse from the AN/TPN–25 precision approach radar (PAR)?

1.0  10% usec wide

12 staggered PRF periods

9.0 to 9.2 GHz frequency range

17.5 kW nominal power

70. In the AN/TPS75 radar, the monitoring fault isolation (MFI) test results are sent from the desquint processing circuits to the radar control function

Once each pulse recurrence time (PRT)

Twice each PRT

Once each antenna scan

Twice each antenna scan

71. In which module of the AN/UPX–37 is the local oscillator (LO) synthesizer located?

Coder Timing Module A5

Transmitters A9 and A10

Receiver/Modulator A8

Microprocessor A1

72. What is the maximum allowable ground slope (inclination) percentage for the AN/TPN–19 operations shelter?

4

6

10

12

73. The intermediate frequency (IF) receiver function in the AN/TPS-75 radar converts the radar return signals into

6-bit digital data

8-bit digital data

10-bit digital data

12-bit digital data

74. What DC reference levels are added to the transmitted selective identification feature (SIF) interrogations in the OK–217/UPX?

+5V and -20V

+5V and -80V

+1.5V and -20V

+1.5V and -80V

75. In the AN/TPS-75, what MCE interface group (MIG) unit provides built-in radar/identification friend or foe (IFF) simulation capabilities for test purposes?

Digital interface

MIG control panel

MCE interface electronics (MIE)

Executive maintenance monitor (EMM)

76. What is the AN/TPN–19 landing control central's (LCC) air traffic control radar beacon system (ATCRBS) maximum range in nautical miles?

60

100

200

240

77. What systems are included within the AN/TPN–19 landing control central (LCC) when the unit is deployed in the radar approach control (RAPCON) configuration that are not included when deployed in the ground control approach (GCA) configuration?

Ultra high frequency (UHF) transceivers and dual ASR and PAR indicator displays

Dual airport surveillance radar (ASR) and precision approach radar (PAR) indicator displaysand a video mapper

Radar data transfer system and voice recorder facilities

Video mapper and voice recorder facilities

78. What type of amplifier does the ARM decoy's transmitter assembly use to amplify the RF pulse?

Klystron

Twystron

Solid-state amplifier

Crossed-field amplifier

79. What does a technician use to locally control and monitor the decoy set?

Central control unit

Status monitor panel

Monitor-control assembly

AN/TYQ-23 operations module

80. Which assembly within the AN/TPN–25 multiplies the selected frequency by a factor of 48 prior to being transmitted by the antenna?

Transmitter

Receiver processor

Frequency generator

Frequency modulator

81. Which component of the AN/TPS–75 identification friend or foe/selective identification feature (IFF/SIF) subsystem eliminates nonsynchronous IFF returns?

KIR Mode 4 Computer

MCE Interface Group (MIG)

AN/UPA–59A Decoder Group

OK–217/UPX Control Monitor

82. What does the operator use to remotely control and monitor the ARM decoy set?

Central control unit

Status monitor panel

Monitor-control assembly

AN/TYQ-23 operations module

83. How many consecutive pulse recurrence times (PRT) does it take the moving target indicator (MTI) receiver to filter out stationary targets?

Two

Three

Four

Five

84. During AN/UPA–59A active decoding, comparisons are made for how many consecutive pulse repetition times (PRTs)?

4

3

2

1

85. What ARM decoy emitter group assembly generates the radio frequency (RF) pulse?

Modulator assembly

Transmitter assembly

Monitor-control assembly

Power converter assembly

3d1x5 Volume 4 (Ure)

1. What is the purpose of the truck stabilizers when you mount the AN/TPS–75 antenna in the back of a truck?

2.

What first name or nickname would you like us to use?

2. What is used to dehydrate the AN/TPS75 waveguide air?

3. For how many nautical miles does the AN/TPS–75 radar set provides information on aircraft?

4. What type of antenna does the AN/TPS–75 radar set use?

5. How is the radar initialization function in the AN/TPS75 performed?

6. The AN/TPS-75 waveguide is pressurized and dehydrated to

7. The sensitivity time control (STC) in the AN/TPS75 radar functions to

8. What is required to certify the AN/TPN–19 landing control central (LCC) equipment operation?

9. What is the relationship of the stable local oscillator (STALO) frequency to the transmit frequency in the AN/TPS75 radar?

10. The final output of the AN/TPS75 transmitter's driver circuit is a

11. What AN/TPS-75 circuit ensures the pulse-forming network (PFN) output pulse has the same potential from pulse recurrence time (PRT) to PRT?

12. The height between two targets is called the

13. Which term describes the blocking of all or a portion of the radar beam by an obstacle?

14. The monitoring fault isolation (MFI) operation is performed in the AN/TPS-75 radar during the radar

15. What are the pulse repetition time (PRT) modes for the AN/TPS75 radar?

16. The focus coil on the AN/TPS75 twystron is positioned around the tube's

17. On the AN/TPS75 antenna, how many of the 48 slotted sticks are used for transmitting?

18. What system in the AN/TPS75 radar transmits target track reports to an AN/TYQ23 operations module (OM)?

19. What is the term given when two or more identification friend or foe/selective identification feature (IFF/SIF) reply codes overlap and interfere with each other's time space?

20. How many AN/TPN–19 operations shelters are required for a radar approach control (RAPCON) facility?

21. The AN/TPS75 north mark alignment insures that your antenna is oriented to within

22. How many antenna rotation degrees is the jamming analysis and transmission system (JATS) jump signal generated in the AN/TPS75 radar?

23. One purpose for the AN/TPS75 radiate control interlock network is to

24. What type of data does the weather/ECM/ inverse jamming amplitude versus azimuth (IJAVA) function process in the AN/TPS-75 radar to develop linear jam data?

25. In the AN/TPS-75 radar's identification friend or foe/selective identification feature (IFF/SIF) system, the interrogation sidelobe suppression (ISLS) control monitor's primary purpose is to provide

26. What is the frequency of the master clock signal, provided by the frequency generator to the processor timing generator in the AN/TPS75 radar?

27. What does the antenna pallet for the AN/TPS75 radar contains in the transit configuration?

28. The radio frequency (RF) signal used to drive the AN/TPS75 twystron is a

29. What is the pressure range in the AN/TPS-75 waveguide?

30. The type of storage used for the program instructions in the AN/UYQ–27 is

31. What is used as the final power amplifier in the AN/TPS75?

32. What are the two primary inputs to the AN/TPS-75 final power amplifier (FPA)?

33. The gain of the AN/TPS-75's intermediate frequency (IF) receivers is varied dynamically by the analog control signals from the

34. Where does/do the transition of data between the real-time and the processing-time circuits take place in the AN/TPS-75 radar target data post processing function?

35. In the AN/TPS-75 radar's identification friend or foe/selective identification feature (IFF/SIF) system, additional processing is used during Mode 4 IFF operations for

36. When accomplishing the north alignment for the AN/TPS–75, you should place the surveyor's transit as far from the antenna as possible without exceeding how many feet?

37. The range and azimuth correlation of identification friend or foe (IFF) and AN/TPS75 radar returns is accomplished in the

38. What is the coherent oscillator frequency for the AN/TPS75?

39. What type of amplifiers are used on the AN/TPS-75 antenna to provide an initial 22 dB gain to the radio frequency (RF) echoes?

40. In the AN/TPS-75 radar, the primary beam selector in the height signal processing function formats a 64-bit word from the peak selector that contains the primary beam

41. In the AN/TPS-75 radar target data post processing function, when is data specifying the parameters of each IFF/SIF listening period processed?

42. In the AN/TPS–75, what unit is located in A1, the upper half of the modular control equipment interface group (MIG)?

43. In the presence of local rainstorms or chaff, the video processing circuits in the AN/TPN–24 would automatically switch to which type of video?

44. What two AN/TPS75 circuits are used to produce the high-power, coded, radio frequency (RF) pulse that drives the twystron amplifier?

45. What is the transmit frequency of the AN/TPN–24 radar?

46. What two circuits generate the high-voltage enabling pulse for the AN/TPS75 final power amplifier (FPA)?

47. What is monitored by the AN/TPS75's prime power protection circuit?

48. The AN/TPS-75 transmitter coolant system is pressurized to

49. What is the AN/UPX–37's transmitter maximum power output in the separate transmitter configuration?

50. What is the system commonly referred to as when the AN/TPN–19 landing control central (LCC) is configured as a combination of the OK–235/T and the OK–236/T?

51. How many modes of communication are provided to the operator in the AN/TPS-75 radar by the communications system?

52. Relative range and bearing on the AN/UYQ–27 situation display indicate the range and bearing from

53. What unit within the modular control equipment interface group (MIG) provides identification friend or foe/selective identification feature (IFF/SIF) target detection and extraction for the AN/TPS–75?

54. The maximum degree of ground slope for the AN/TPS75 radar antenna pallet is

55. The serial communication interface, part of the radar control function in the AN/TPS75, provides a link between the radar control unit and the

56. The type of information provided through the computer interface in the AN/UYQ–27 situation display is

57. Microwave radios in the AN/TPN–24 airport surveillance radar (ASR) can be used to extend the communications coverage between ground controllers and aircraft when the

58. In the AN/TPN–25, where is the video from the moving target indicator (MTI) receiver processed to minimize signals from stationary or slow moving objects?

59. What is the source used to perform timing functions in the AN/TPN–25 transmitter?

60. Which circuit in the AN/TPN–25 precision approach radar (PAR) is used to down-convert the three channels of received radio frequency (RF) energy to ultra high frequency (UHF) intermediate frequency (IF) signals?

61. What component of the AN/TPS–75 identification friend or foe/selective identification feature (IFF/SIF) subsystem provides the interrogation sidelobe suppression (ISLS) function?

62. What type of amplifier is used in the AN/TPS75 transmitter's driver circuit?

63. The interface between a remote AN/TPS75 radar and the AN/TYQ-23 operations module (OM) consists of

64. The AN/TPN–25 can process the range, elevation, and azimuth positions of up to how many targets?

65. In the AN/TPS-75, which component provides the discharge path for the pulse-forming network (PFN)?

66. What is the height of the AN/TPS-75 antenna's elevation beam pattern?

67. The AN/UPX–37 digital interrogator BIT provides fault isolation to the replaceable module for what percentage of faults?

68. How many AN/TPN–19 operations shelters are required for a ground control approach (GCA) facility?

69. Which of the following is not a characteristic of the transmitted pulse from the AN/TPN–25 precision approach radar (PAR)?

70. In the AN/TPS75 radar, the monitoring fault isolation (MFI) test results are sent from the desquint processing circuits to the radar control function

71. In which module of the AN/UPX–37 is the local oscillator (LO) synthesizer located?

72. What is the maximum allowable ground slope (inclination) percentage for the AN/TPN–19 operations shelter?

73. The intermediate frequency (IF) receiver function in the AN/TPS-75 radar converts the radar return signals into

74. What DC reference levels are added to the transmitted selective identification feature (SIF) interrogations in the OK–217/UPX?

75. In the AN/TPS-75, what MCE interface group (MIG) unit provides built-in radar/identification friend or foe (IFF) simulation capabilities for test purposes?

76. What is the AN/TPN–19 landing control central's (LCC) air traffic control radar beacon system (ATCRBS) maximum range in nautical miles?

77. What systems are included within the AN/TPN–19 landing control central (LCC) when the unit is deployed in the radar approach control (RAPCON) configuration that are not included when deployed in the ground control approach (GCA) configuration?