22. EU ACFT - Aircraft Communication Equipment Flashcards
1
Q
What is the civil VHF communications spectrum? (1)
A
118.000 to 136.975 Mhz
2
Q
Factors affecting DOC (Designated Operational Coverage) of a VHF station (6)
A
- Position of Transmitter
- Power of Transmitter
- Altitude of Recipient
- Local Terrain (Line of Sight)
- Environmental / Meteorological Phenomena
- Consider transferring aircraft to another frequency with better coverage as aircraft travels along its route or changes flight profile
3
Q
Other means of communication (6)
A
4
Q
3 types of emergency squawks (3)
A
7700 Emergency
7600 Radio Failure
7500 Hijack/ Unlawful interference