Compasses Flashcards
1
Q
What is the purpose of a compass?
A
To provide an accurate and reliable means of determining the direction of an antenna or antenna system.
2
Q
Why does a compass bowl contain alcohol?
A
A Compass contains alcohol because:
- It does not freeze
- Alcohol is a pure liquid and does not promote corrosion
- Reduces oscillation
- Reduces friction
3
Q
What are the two methods for providing a bearing of a compass?
A
- The Point System.
* The 3 Figure System
4
Q
Calculate a magnetic direction of 155º with a declination of 19º east gives you the true direction of?
A
A magnetic direction of 155º with a declination of 19º east gives you the true direction of, 155º + 19º = 174º
5
Q
Calculate a magnetic direction of 012º with a declination of 22º west gives you the true direction of?
A
A magnetic direction of 012º with a declination of 22º west gives you the true direction of, 012º - 22º = 350º
