Wtt2

Question 1

Srch short

Answer 1

Short range search

108 rpm

Radar: 100yds - 16nm
IFF: 100yds - 75nm

“Return to ship”, high resolution, low vis approaches, large and small contacts

Question 2

Srch long

Answer 2

Surveillance search mode

12 rpm

Radar: 0.25-160nm
IFF: 100yds-160nm

Standard long range, surveillance, large contacts (ships, aircraft), optimized for high sea states and adverse weather

Question 3

Srch cstl

Answer 3

Coastal search

12rpm

Radar: 0.25-160nm
IFF: 100 yds-160nm

Optimized to display coastline detail in grey shade

Question 4

MMR components

Answer 4

1. Radar reciever/transmitter (r/t)
2. Antenna array and IFF interrogator R/T (aka antenna/pedestal = A/P)
3. Radar data processor (RDP)
4. Radome
5. IFF Mode 4 crypto
6. Waveguide assembly
7. Waveguide dehydrator

Question 5

What two types of radar do we have?

Answer 5

1. AN/APS-147

2. AN/APS-153(V)1

Question 6

R/T

Answer 6

Radar recieve/teansmit generates a transmission pulse and converts the recieved pulse into a usable form for the RDP to process

Question 7

A/P

Answer 7

Allows controllable antenna position and provides MMR/iFF interrogation signals for transmission

Meaningn a/p hardware talks with RDP for control information and status reporting

Question 8

RDP

Answer 8

1. Processes the raw radar and IFF interrogator data to form “tracks” (which are displayed on MD)
2. RDP recieves data from different interfaces coa the mission computer (1553 data bus)
3. Provides IFF interrogations control, IFF code validation, and contact reply correlation

Question 9

Radome

Answer 9

Houses and protects a/p from environmental damage

Transparent to RF energy

Question 10

Iff mode 4 crypto

Answer 10

Provides encryption/decryption for secure IFF Mode 4 ops

Question 11

Waveguide assembly

Answer 11

1. Transmots voltage standing wave ratiom from r/t to a/p

2. Transmits x-band radiation

Question 12

Waveguide dehydrator

Answer 12

Connect to the radar waveguide for moisture removals

Question 13

Sensor range

Answer 13

1.23 x square root of altitude

Question 14

Iff modes/ranges

Answer 14

1

2

3a

3c

4

Question 15

LMR

Answer 15

Land mass rejection

Has no effect on iff tracks

Reject land via enable/inhibit

Question 16

LsF

Answer 16

Low speed filter

Adjust contacts seen base on speed

Question 17

Peri short

Answer 17

Short range periscope detect

108 rpm

Radar: 100yds-16nm
IFF: 100yds-75nm

Small contacts (like periscopes) at short ranges

Question 18

Peri long

Answer 18

Long range periscope detect

108 rpm

Radar: 2-32nm
IFF: 100 yds-75nm

Optimized for small targets (like periscopes, submarine snorkels, mines, or life boats) in the presence of sea clutter

Question 19

Trkr wdo

Answer 19

Tracker window = circular windows

Question 20

Trkr sect

Answer 20

Tracker sector = pie slice sectors

Question 21

Persistence

Answer 21

How long you want contacts, coasts, or video data to remain on the screen for

Lowest setting = dissolves fast
Highest setting = stays on screen

Question 22

Manage track percentage is based on:

AOP

IFF

Answer 22

2500 total tracker capacity

AOP = 256

IFF = 64

Question 23

Failure to manage radar tracks below 90% track capacity:

Answer 23

May cause radar to fail, requiring a re-initialization to recover (which takes 5 mins)