Handbook of Propagation Effects for Vehicular and ... - Courses

3-20
Relative Signal Level (dB)
5
0
-5
-10
-15
-20
-25
-30
-35
-40
Maximum
One-Minute Avg.
Minimum
Propagation Effects for Vehicular and Personal Mobile Satellite Systems
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Time From Run Start (s)
Figure 3-17: Minimum, maximum, and average fades over 1 second interval at 20 GHz
for a tree-lined run in Austin, Texas during February 6, 1994. Deciduous trees (Pecan)
were devoid of leaves.
Relative Signal Level (dB)
5
0
-5
-10
-15
-20
-25
-30
-35
-40
Maximum
One-Second Avg.
Minimum
0 10 20 30 40 50 60 70 80 90 100 110 120
Time From Run Start (s)
Figure 3-18: Minimum, maximum, and average fades over 1 second intervals at 20 GHz
for a tree-lined run in Austin, Texas during May 2, 1994. Trees (Pecan) were in full
foliage.