3.
Based on the clearance required in the previous question, the first Fresnel zone is
obtained for the designated point along the radio line.
A.
True
B.
False
4.
Using the same profile, determine the first Fresnel zone clearance where d1 = 8
kilometers, d2 = 32 kilometers, f = 4 GHz, and D = 40 kilometers.
A.
C = about 22 meters
B.
C = about 44 meters
C.
C = about 65 meters
D.
None of the above
5.
Based on the clearance required, the first Fresnel zone is obtained for the designated
point along the radio line.
A.
True
B.
False
6.
As the S3, you have been tasked to install another radio system. Using the information
below and nonlinear graph paper (page 2-21), determine if LOS exists between points C
and D.
Elevation at point C
40 meters
Elevation at point D
10 meters
Antenna heights at both sites
50 meters high
Distance from point C to D
32 kilometers
Significant high and low points between the two sites are:
8-kilometer distance
60 meters
14-kilometer distance
30 meters
18-kilometer distance
36 meters
22-kilometer distance
42 meters
24-kilometer distance
60 meters
30-kilometer distance
30 meters
Based on your profile, LOS exists between the two sites.
A.
True
B.
False
SS0121
2-18
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