Radar

Question 1

To increase definition on a radar screen, must the beam width be narrow or wide

Answer 1

Narrow

Question 2

What is:
1-pulse width
2-pulse recurrence frequency(prf)
3-pulse recurrence period(prp)

Answer 2

1-length of a pulse in time, measured in seconds
2-number of pulses in one second
3-time interval between 2 pulses, measured in seconds

Question 3

With regards to radar, what determines the:
1-min range
2-max range

Answer 3

1-Pulse Width
2-PRF

Question 4

What is the most suitable radar for measuring short distances

Answer 4

Continuous wave primary

Question 5

What principle does primary radar operate

Answer 5

Pulse technique

Question 6

What is an advantage of Secondary radar to Primary radar

Answer 6

The power output of the ground station is reduced

Question 7

What is the main advantage of a slotted scanner

Answer 7

It reduces side lobes and focuses more power into the main beam

Question 8

What 4 systems operate on pulse technique

Answer 8

Aerodrome Surface Movement Radar
SSR
AWR
Aerodrome Surveillance(approach) Radar

Question 9

What does “mode” refer to with ATC surveillance radar

Answer 9

Interrogation by a train of 12 pulses, spaced from 8-21 microseconds apart at 1030MHz, in order to trigger a reply at 1090MHz from an a/c with the code selected