Radio Propergation,reception And Comms Flashcards
1
Q
1 Hz Frequency means?
A
One cycle per second
2
Q
Sky waves operate almost exclusively on the HF band and:
A
Are reflected by the ionosphere
3
Q
Standard monopole antenna has the size of what wavelength
A
A Quarter of a wavelength
4
Q
The comms mode that allows two persons to hear and speak at the same time is called?
A
Full-duplex
5
Q
What is the short name for the electronic countermeasures freq hopping system?
A
HaveQuick
6
Q
The TACAN SYS consists of how many Chanels?
A
252
7
Q
Where are TACAN check circles located?
A
Prior to the holding point of each RWY
8
Q
The TACAN cone of confusions is worst at what alt?
A
High
9
Q
How many Satellites are required for a 3D fix? GNSS
A
4
10
Q
What is the basic concept of RAIM?
A
The receiver monitors the satellites being used
