EQT 3 Radar -primary Flashcards Preview

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Flashcards in EQT 3 Radar -primary Deck (18):
1

What does RADAR stand for

Radio Detection and Ranging

2

Primary radar uses reflected radio signals to work out how far away am a/c is. What equation does it use to measure distance of A/c

Distance = speed x time divided by 2

3

How long is a radar wavelength

1mm to 100cm

4

If a higher frequency has a shorter wavelength what does this mean for the range

Less range

5

What length wavelength does a primary approach radar use

3-10cm

6

What length wavelength do you need for a primary area radar

23-50cm

7

What are the 2 types of clutter

Ground clutter

Weather clutter

8

What is a PSR blip

The visual indication in non symbolic form on a situational display of the position of an a/c obtained by primary radar

9

What is a position indication

Visual indication on a situation display of the position of an a/c, AD, vehicle or other object

10

What is a position symbol

Visual indication in symbolic form on a situation display of the position of an aircraft aerodrome vehicle or other object obtained after automatic processing of positioned data derived from any source

11

What is a radar contact

The situation which exists when the radar position of a particular aircraft is seen and identified on a situation display.

12

What is radar control

Term used to indicate that radar derived information is employed directly in the provision of ATC service.

13

What is a situation display

An electronic display depicting the position and movement of an aircraft and other information as required

14

What must a primary radar be capable of doing

Transmission
Receive
Display

15

What does a modulator do

When triggered fires high power high voltage pulse to the transmitter

16

What does a transmitter do

Outputs pulses to the aerial

17

What is a duplexer

Used to switch between TX and RX functions

18

What is the time babe unit used for

Used to calculate the range