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WorksheetsRadio Propagation
Total questions: 10
Worksheet time: 8mins
Which one of these is NOT a type of radio propagation?
Sky Wave
Line of Sight
Skip Zone
Ground Wave
What is a Hertz?
One hop per second
One cycle per minute
One cycle per second
One hop per minute
Which of these ionosphere layers disappears at sunset?
B Layer
D Layer
F Layer
All of the above
When does the process of ionization occur?
During daylight
During hours of darkness
During night and day
During radio transmission
When does Attenuation occur the most?
At sunrise
At the lowest frequencies
At the time of broadcast
At high frequencies
How would you describe a 'Unity Gain' antenna?
Transmits power horizontally
Transmits power along the earth surface
Transmits power in all directions
Transmits power vertically
Why is Hyperbolic position fixing more accurate nearer the base line?
Angle of Cut of position lines
Better coverage
Gradients are smallest
All of the above
What is a Skip Distance?
Distance between transmission point of Skywave and transmission point of Groundwave
Distance between transmission point of Groundwave and reception point of Groundwave
Distance between transmission point of Skywave and reception point of Skywave
Distance between reception point of Groundwave and reception point of Skywave
Which Skywave frequency will not reflect, passing straight through the Ionosphere?
Above 30 MHz
Below 10 MHz
Above 100 KHz
Below 100 KHz
Which ionospheric layer is most suitable for reflecting a one-hop Skywave?
E
F1
F2
D
