ILS | The Glidepath

Question 1

Glidepath transmissions are HF, between ___. and ___._ _Hz

Answer 1

328.6 335.4 MHz

Question 2

The upper glidepath lobe is __ Hz

Answer 2

90

Question 3

The lower glidepath lobe is ___ Hz

Answer 3

150

Question 4

Ground reflections from the lower lobe can produce side-lobes, which can give ___ indications

Answer 4

false

Question 5

Full deflection is only . degrees

Answer 5

0.7

Question 6

One dot means __ft at the OM

Answer 6

50

Question 7

One dot means _ft at the MM

Answer 7

8

Question 8

The glidepath is set to cross the threshold at __ft

Answer 8

50

Question 9

The 150 Hz can also be received at _ degrees, as well as 3

Answer 9

6

Question 10

The lower antenna radiates at __ Hz, the upper at ___ Hz

Answer 10

90 150

Question 11

The first false equisignal should not be lower than __ degrees

Answer 11

10

Question 12

They glidepath is any part of the glideslope intercepting the ____

Answer 12

localiser

Question 13

The maximum safe “fly-up” indication of the glidepath needle, with 5-dot indicator, is ___

Answer 13

2.5 dots

Question 14

The horizontal coverage extending in azimuth _ degrees either side of the extended centreline out to a range of 10NM

Answer 14

8

Question 15

The ILS glidepath antenna is located approximately ___m ____ the threshold

Answer 15

300m beyond