Ground RADAR (22-05-18) Flashcards Preview

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Flashcards in Ground RADAR (22-05-18) Deck (13)
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1
Q

What are the features of En-route Surveillance RADAR?

A

Used for surveillance of airways

Longe range up to 300nm

Long wavelength and pulse length

PRF and antenna rotation are low

RADARs are all connected by land line

Primary RADAR works on 600-1200MHz

Can alter the frequency to allow you to ‘see’ rain

2
Q

What are the 5 types of ground RADAR?

A

En-route surveillance RADAR

Terminal surveillance RADAR

Airfield surveillance RADAR

Precision approach RADAR

Airfield surface movement RADAR

3
Q

What are the features of Terminal surveillance RADAR?

A

Medium range of 60-80nm

Used for controlling traffic inside terminal area

Primary RADAR operates at 1200-3000MHz UHF

PRF is 500Hz+

Ability to refresh target information at shorter intervals able to penetrate intervening weather

reasonable target discrimination properties

4
Q

In terms of response, how does secondary RADAR differ from primary?

A

Primary RADAR works on reflection of targets, secondary works on response.

This means that secondary RADAR doesn’t suffer from weather clutter.

5
Q

What are the features of Airfield surveillance RADAR?

A

Short range of 20-30nm

Can provide surveillance RADAR approach (a non precision approach)

May use either:

RAD (Basic)

Lower res; UHF; RTR of 2nm; most having an MTI using 3000, 1300 or 600MHz

Surveillance RADAR equipment

better res; higher frequency; RTR of 1/2nm

6
Q

What are the features of precision approach RADAR?

A

Military precision approach

contains both azimuth and elevation info

operates at 9-10GHz in SHF band

very susceptible to weather clutter

RTR is 1/4nm

must be capable of detection:

range 9nm; elevation 7deg; within 10deg from centreline

Uses talk down from controller to give pilot information

7
Q

What are the features of of airfield surface movement RADAR?

A

Used for taxiing in fog

AKA:

ASMI - Airfield surface movement indicator

GMR - Ground movement RADAR

SMR - Surfsce movement RADAR

ASDE - airfield surface detection equipment

range up to 5nm

operates at 15-17GHz (SHF)

Excellent target discrimination, can detect small to medium or large aircraft and sometimes type

8
Q

What is the range and operating frequency of En-route surveillance RADAR?

A

up to 300nm

works at 600-1200MHz

9
Q

What is the range and operating frequency of terminal surveillance RADAR?

A

60-80nm

1200-3000MHz

10
Q

What is the range and operating frequency of airfield surveillance RADAR?

A

20-30nm

3000, 1300, 600MHz

11
Q

What is the range and operating frequency of precision approach RADAR?

A

1/4nm

9-10GHz

12
Q

What is the range of surveillance RADAR approach and surveillance RADAR equipment?

A

2nm

1/2nm

13
Q

What is the range and operating frequency of airfield surface movement RADAR?

A

Up to 5nm

15-17GHz