Canadian Basic Qualification pool, section B-007-003

Subelement B-007

B-007

Section B-007-003

B-007-003-001

What term describes an area that is too distant for reception of ground waves, but too close for reception of ionospheric waves?

A.
Scatter zone
B.
Propagation zone
Correct Answer
C.
Skip zone
D.
Shadow zone

B-007-003-001

The Skip Zone is a zone of silence beyond the reach of the Ground Wave but closer than the nearest point where the Sky Wave returns to Earth.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-002

What is the maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?

A.
12 000 km
Correct Answer
B.
4 000 km
C.
300 km
D.
2 000 km

B-007-003-002

One hop via the E region of the ionosphere can reach 2000 km. One hop via the F2 sub-region can reach 4000 km. Multiple hops cover greater distances.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-003

What is the maximum distance along the Earth's surface that is normally covered in one hop using the E region?

Correct Answer
A.
2000 km
B.
4000 km
C.
300 km
D.
1000 km

B-007-003-003

One hop via the E region of the ionosphere can reach 2000 km. One hop via the F2 sub-region can reach 4000 km. Multiple hops cover greater distances.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-004

Skip zone is:

Correct Answer
A.
a zone between the end of the ground wave and the point where the first ionosphere-refracted wave returns to Earth
B.
a zone of silence caused by lost sky waves
C.
a zone between the antenna and the return of the first refracted wave
D.
a zone between any two refracted waves

B-007-003-004

The Skip Zone is a zone of silence beyond the reach of the Ground Wave but closer than the nearest point where the Sky Wave returns to Earth.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-005

The distance to Europe from your location is approximately 5000 km. What type of high frequency (HF) propagation is the most likely to work?

A.
Tropospheric scatter
B.
Back scatter
C.
Sporadic "E"
Correct Answer
D.
Multi-hop

B-007-003-005

One hop via the E layer of the ionosphere can reach 2000 km. One hop via the F2 layer can reach 4000 km. Multiple hops cover greater distances.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-006

Assuming constant ionosphere region height, how does a higher radiation angle affect skip distance?

A.
It increases, due to the increase in critical frequency
B.
It increases, due to the geometry of the signal path
Correct Answer
C.
It decreases, due to the geometry of the signal path
D.
It decreases, due to the decrease in critical frequency

B-007-003-006

How far one hop through the ionosphere reaches depends on the take-off angle of the wave with respect to ground ( the lower, the further ) AND the height of the layer where refraction takes place ( the higher, the further ). One hop via the E layer of the ionosphere can reach 2000 km. One hop via the F2 layer can reach 4000 km. Multiple hops cover greater distances.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-007

On a double-hop path involving the surface of the Earth as a middle point, what phenomenon returns the radio wave to the ionosphere?

A.
Scattering
B.
Refraction
C.
Diffraction
Correct Answer
D.
Reflection

B-007-003-007

Following refraction in the ionosphere, a sky wave may be reflected by the surface of an ocean or ground.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-008

Skip distance is the:

A.
maximum distance reached by a signal after one reflection by the ionosphere
Correct Answer
B.
minimum distance reached by a signal after one reflection by the ionosphere
C.
minimum distance reached by a ground-wave signal
D.
maximum distance a signal will travel by both a ground wave and reflected wave

B-007-003-008

Skip Distance is the "nearest point where the sky wave returns".

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-009

Skip is a term associated with signals from the ionosphere. What causes skip?

A.
Selective fading of local signals
Correct Answer
B.
Refraction by the ionosphere
C.
Local cloud cover
D.
High gain antennas are being used

B-007-003-009

The phenomenon that returns certain radio waves to Earth is primarily refraction.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-010

The skip distance of a sky wave will be greatest when the:

A.
signal given out is strongest
B.
polarization is vertical
Correct Answer
C.
angle between the ground and the emitted radiation is smallest
D.
ionosphere is most densely ionized

B-007-003-010

How far one hop through the ionosphere reaches depends on the take-off angle of the wave with respect to ground ( the lower, the further ) AND the height of the region where refraction takes place ( the higher, the further ). One hop via the E region of the ionosphere can reach 2000 km. One hop via the F2 sub-region can reach 4000 km. Multiple hops cover greater distances.

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

B-007-003-011

How does an increase in the height of the refracting region affect skip distance?

A.
It decreases, due to the geometry of the signal path
B.
It increases, due to the increase in critical frequency
C.
It decreases, due to the increase in critical frequency
Correct Answer
D.
It increases, due to the geometry of the signal path

B-007-003-011

Original copyright; explanations transcribed with permission from Francois VE2AAY, author of the ExHAMiner exam simulator. Do not copy without his permission.

Tags: none

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