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my class Flashcards

1
Q

What equipment is used for final approach for landing aircraft during weather

A

an/tpn 25 par

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2
Q

What equipment is has display radar controls and radio comms

A

ok-235,236

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3
Q

What equipment of an/tpn 19 landing control central generates the target information for detecting and identifying aircraft

A

(tpn 42 and tpn 24)

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4
Q

What equipment of the an/tpn 19 involves the scanning of selected runway and track function to accurately determine an aircraft elevation azimuth and rang position

A

(TPN 25) (par)

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5
Q

What is the scan area of the an gpn 22

A

8 degrees and 20 degrees

-1 to 7) (-10 to +10

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6
Q

What assembly generates rf and all timing signals through the radar system

A

Receiver processor

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7
Q

How is radar beam pointed

A

Electronically

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8
Q

What is the control center of the par

A

The target data computer

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9
Q

What does a primary radar display of a target provide

A

Rang in nmi and az in degrees

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10
Q

What does the aircrafts indetity code consist of

A

4 digit beacn code and a 3 digit altitude code

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11
Q

What does the aircraft symbol represent

A

Targets selected for viewing on the indicator only

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12
Q

What is an aircrafts altitude with a code of 023

A

2300 feet

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13
Q

What is the transmit and receive frequencies of the tpx-42

A

Tx 1030 and rx 1090

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14
Q

What is the transmit and receive frequencies of the transponder

A

Tx 1090 and rx 1030

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15
Q

What is the purpose of the radar pretrigger input in the codr synchronizer

A

Used to develop the bst to synchronize of the an/tpx 42 with the asr

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16
Q

What interrogation pulses determines the mode of operation

A

The spacing between the leading edge of p1 to the leading edge of p3

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17
Q

What mode determines altitude

A

Mode c

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18
Q

what should the leading edge of p3 be 24.7 prior to rzr

A

P3 is 24.7 prior to rzr for video time coincidence if not range error occurs

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19
Q

What is the purpose of the p2 pulse

A

Side lobe suppersion

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20
Q

How many a and b boxes are located in the rapcon

A

(a-box)One per indicator sation and one b box

21
Q

What does the does the a-box mode switch select

A

selects mode & interlace sequence for display on that

indicator only

22
Q

What does mode lamps 1,2,3a,c represent

A

Dispalys all modes being interrogated

23
Q

What is the isls process of eliminating the aircraft replies coming from the side lobes

A

Done by creating a radiation pattern where the P2 suppression pulse is the dominate pulse in the side lobe

24
Q

What method is used to minimize unwated aircraft returns created in side lobes

A

P2> p1 applied to the side lobe antenna pattern

25
Q

How many pulses are in the rct and which one is not used

A

14 because x is not ued

26
Q

What reply and mode gives a normal indentity code followed by 3 empty framing pulses

A

Military mode 1 and 2

27
Q

What is the purpose of a a/d converter mon gate posn switches

A

Enables rabm to generate a single target at selected azimuth

28
Q

What is the purpose of the acps and arps outputs of the a.d converter

A

Synchronize the indicator sweep with the antenna rotation

29
Q

The maximum selectable range in the nautical miles of the rabm is ?

A

15 7/8 nm

30
Q

What selector switch postion of the rabm allows viewing of the rct

A

11

31
Q

What selector allows rabm to switch position on the rabm allow viewing of the interrogation

A

8

32
Q

What routes challenge vdeo to the on line rcvr/xmtr

A

A4

33
Q

What determines which rcvr.xmter is online and which is in standby

A

A2

34
Q

What is the purpose of the a5 switch driver

A

Develops isls switch trig at p2 time

35
Q

In the a5 trigger monitor rang error has occurred and override has been initiated u3b output

A

goes high and u4 stays high

36
Q

What is the purpose of the defruiter

A

Removes replies

37
Q

What happens when s1 is in remote position

A

Stby/def positions

38
Q

What is the purpose of clock generator a209 rp

A

Adjust range gate

39
Q

What determines if video is synchronous or non synchronous

A

Coincidence video gate u6a by comparing current video with previous prt video to determine synchronous video

40
Q

What is the purpose of the 5 bit acceptance register

A

Stretches each pulse from ememory to a 1.41 us pw to compensate for any aircraft movement

41
Q

Whjat is the purpose of the an/tpm 32

A

Provides bench testing of the online monitoring of the vsp

42
Q

What circuits of the vsp does the 32 test set test

A

Tdu and rdu and memory

43
Q

What is the use of the 155

A

Used as a power meter signal generator and digital o’scope

44
Q

Referring to figure what vsp sub unit declares a new hit or miss of a reply message

A

Tdu

45
Q

Referrung to figure in the tdu during check range cinoaratir determines that the reply range is = to the target range what will be the sequence of the gates generated

A

Load gate reply gate target gate check

46
Q

Which subunit of the an/tpx-42 vsp checks for the target validity

A

tru

47
Q

in Tdu test where is the target displayed when the tdu test input switch is in the az gated position and tdu switch in the test position

A

Target generated at 0 at variable ranges determined by range tdu test

48
Q

What vsp front panel selected test targets displays a single target at 0 degrees but variable ranges

A

Tdu test and test target

my 15 (1 decks)

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