Aerials Flashcards
1
Q
What is the definition of aerial gain
A
Measure of the directionality of the aerial
2
Q
Parameters that effect aerial performance
A
Resonant frequency
Bandwidth
Impedance
Polarization
Radiation pattern
Gain
3
Q
Reflectors and directors are added to a Marconi aerial. Describe the effect on the aerial
A
The aerial gain would increase
4
Q
Describe the direction a horizontally mounted slot aerial would be polarised
A
Vertically
5
Q
Describe the direction a horizontally mounted dipole aerial would be polarised
A
Horizontally
6
Q
Describe how a notch aerial is fitted to an aircraft
A
Cut into the aircraft tail fin
7
Q
List the frequency band and range of frequencies used by a slot aerial
A
HF
3MHz-30MHz
8
Q
Explain the purpose of the aerial tuning unit
A
Allows the use of one aerial for a range of frequencies
