Frequency Summary

Question 1

Frequency range of VDF?

Answer 1

118.0 - 136.0MHz

Question 2

Frequency range of NDB?

Answer 2

190kHz - 1750kHz

Question 3

Frequency range of VOR?

Answer 3

108 - 118MHz

Shared with ILS between 108 and 112MHz VOR has even number after decimal place

Question 4

Frequency range of DME?

Answer 4

962 - 1213MHz (Approx 1000MHz)

Question 5

Frequency range of ILS Localiser?

Answer 5

108 - 111.950MHz

Odd number after decimal place as it’s shared with ILS

Question 6

Frequency range of ILS glideslope?

Answer 6

328.6 - 335.4MHz

Question 7

Frequency of inner marker carrier wave?

Answer 7

75MHz

Question 8

Frequency of modulation of inner marker?

Answer 8

3000Hz - 6 dots a second

Question 9

Frequency of modulation of middle marker?

Answer 9

1300Hz - dots and dashes

Question 10

Frequency of modulation of outer marker?

Answer 10

400Hz - Two dashes per second

Question 11

Frequency of middle marker?

Answer 11

75MHz - Carrier wave not modulation

Question 12

Frequency of outer marker?

Answer 12

75MHz - Carrier wave not modulation

Question 13

Frequency range of MLS?

Answer 13

5031 - 5091MHz

Question 14

Frequency range of DME/P (MLS)?

Answer 14

962 - 1213MHz

Question 15

Frequency range of very long range surveillance primary radar?

Answer 15

50 - 300MHz

Question 16

Frequency of a short range primary radar?

Answer 16

Approx 40GHz

Question 17

Frequency of an Airborne Weather Radar (AWR)?

Answer 17

Typically 9GHz

Question 18

What’s the frequency of an SSR interrogation?

Answer 18

1030MHz

Question 19

What’s the frequency of an SSR response?

Answer 19

1090MHz

Question 20

NAVSTAR link frequencies?

Answer 20

L1 - 1575.42MHz

L2 - 1227.6MHz

Question 21

GLONASS link frequencies?

Answer 21

L1 - 1.6GHz

L2 - 1.2GHz

Question 22

Galileo frequencies?

Answer 22

1164 - 1215MHz
1260 - 1300MHz
1559 - 1591MHz*
*Shared with GPS on non-interference basis