Radio Altimeter Flashcards
1
Q
What type of wave is used in a radio altimeter
A
An FM continuous wave
2
Q
What is the max range of an RA
A
2500ft
3
Q
What frequency does the RA operate at
A
SHF at 4300MHz
4
Q
Is the wavelength of the RA centimetric or decimetric at:
1-low alt
2-high alt
A
1-centimetric
2-decimetric
5
Q
What 2 antennas does the RA use
A
One to Rx and one to Tx, both directional
6
Q
What happens when the RA receives a system error
A
Height info is removed
7
Q
What principle of operation does the RA use
A
FM
8
Q
What is the accuracy of the RA
A
1ft or 3% of Height, whichever is greater
