Planes Over Head

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Planes Over Head

Radio Navigation - SSR

There are 10 questions. Each question carries 1 mark. All the best!

Which of the following has no garbling or fruiting? *

1 point

Mode A

Mode C

Mode P

Mode S

The ground station interrogates at *

1 point

1060 MHz

1120 MHz

1090 MHz

1030 MHz

How many identification codes are available in Mode C? *

1 point

4096

254

1024

SSR requires more power than primary radar. *

1 point

False

True

In Mode S what are the height increments available? *

1 point

100 feet

50 feet

25 feet

200 feet

Garbling occurs when aircraft are closer than *

1 point

2.3 nm

1.7 nm

1.5 nm

1.0 nm

What code is used for radio failure? *

1 point

2000

7600

7500

7700

SSR is dependent on aircraft echoes. *

1 point

True

False

What code is used for unlawful interference? *

1 point

2000

7500

7700

7600

Which of the following gives altitude information? *

1 point

Mode A

Mode D

Mode C

Mode B

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