my class

Question 1

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

Answer 1

an/tpn 25 par

Question 2

What equipment is has display radar controls and radio comms

Answer 2

ok-235,236

Question 3

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

Answer 3

(tpn 42 and tpn 24)

Question 4

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

Answer 4

(TPN 25) (par)

Question 5

What is the scan area of the an gpn 22

Answer 5

8 degrees and 20 degrees

-1 to 7) (-10 to +10

Question 6

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

Answer 6

Receiver processor

Question 7

How is radar beam pointed

Answer 7

Electronically

Question 8

What is the control center of the par

Answer 8

The target data computer

Question 9

What does a primary radar display of a target provide

Answer 9

Rang in nmi and az in degrees

Question 10

What does the aircrafts indetity code consist of

Answer 10

4 digit beacn code and a 3 digit altitude code

Question 11

What does the aircraft symbol represent

Answer 11

Targets selected for viewing on the indicator only

Question 12

What is an aircrafts altitude with a code of 023

Answer 12

2300 feet

Question 13

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

Answer 13

Tx 1030 and rx 1090

Question 14

What is the transmit and receive frequencies of the transponder

Answer 14

Tx 1090 and rx 1030

Question 15

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

Answer 15

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

Question 16

What interrogation pulses determines the mode of operation

Answer 16

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

Question 17

What mode determines altitude

Answer 17

Mode c

Question 18

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

Answer 18

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

Question 19

What is the purpose of the p2 pulse

Answer 19

Side lobe suppersion

Question 20

How many a and b boxes are located in the rapcon

Answer 20

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

Question 21

What does the does the a-box mode switch select

Answer 21

selects mode & interlace sequence for display on that

indicator only

Question 22

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

Answer 22

Dispalys all modes being interrogated

Question 23

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

Answer 23

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

Question 24

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

Answer 24

P2> p1 applied to the side lobe antenna pattern

Question 25

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

Answer 25

14 because x is not ued

Question 26

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

Answer 26

Military mode 1 and 2

Question 27

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

Answer 27

Enables rabm to generate a single target at selected azimuth

Question 28

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

Answer 28

Synchronize the indicator sweep with the antenna rotation

Question 29

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

Answer 29

15 7/8 nm

Question 30

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

Answer 30

11

Question 31

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

Answer 31

8

Question 32

What routes challenge vdeo to the on line rcvr/xmtr

Answer 32

A4

Question 33

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

Answer 33

A2

Question 34

What is the purpose of the a5 switch driver

Answer 34

Develops isls switch trig at p2 time

Question 35

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

Answer 35

goes high and u4 stays high

Question 36

What is the purpose of the defruiter

Answer 36

Removes replies

Question 37

What happens when s1 is in remote position

Answer 37

Stby/def positions

Question 38

What is the purpose of clock generator a209 rp

Answer 38

Adjust range gate

Question 39

What determines if video is synchronous or non synchronous

Answer 39

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

Question 40

What is the purpose of the 5 bit acceptance register

Answer 40

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

Question 41

Whjat is the purpose of the an/tpm 32

Answer 41

Provides bench testing of the online monitoring of the vsp

Question 42

What circuits of the vsp does the 32 test set test

Answer 42

Tdu and rdu and memory

Question 43

What is the use of the 155

Answer 43

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

Question 44

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

Answer 44

Tdu

Question 45

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

Answer 45

Load gate reply gate target gate check

Question 46

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

Answer 46

tru

Question 47

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

Answer 47

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

Question 48

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

Answer 48

Tdu test and test target