1. Chelmsford Amateur Radio Society Intermediate Course Propagation Revision

2. Mode of Propagation
1/ An amateur is in contact with a station in New York on the 15 metre band, the normal expected mode of propagation will be;
Ground Wave
Line of sight
Sky wave
Via a satellite

3. VHF
2/ An amateur is having a VHF SSB QSO from the Essex coast to a station located in Holland. The air pressure is High, what is the probable propagation mode;
Line of sight
Sky wave
Ground wave
Tropospheric Ducting

4. Ionosphere
3/ The main four layers in the ionosphere are labeled in order of increasing height. Which is the correct increasing height sequence;
F2, F1, E, D
F1, F2, D, E
E, D, F1, F2
D, E, F1, F2

5. HF-1
4/ On listening on 10 Metres in the early summer months you hear a QSO taking place between a station in located in Holland and a station located in Switzerland. The most probable propagation mode is;
Sky wave
Sporadic E
Line of sight
Ground Wave

6. HF-2
5/ On HF, the area between the point of transmission and the First point of the signal returning via the ionosphere is known as;
The sky wave zone
The skip zone
The ground wave distance
The first hop point.