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AZIMUTH ANGLE REFERRED TO TRUE NORTH (FOR SITE IN NORTHERN HEMISHPERE)
185
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
Figure 2-2. Universal Azimuth-Elevation Look Angles for Positive
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42S042D
3. Subtract the selected antenna site longitude (determined in step 1)
from the satellite longitude (determined in step 2). From the
examples listed above, the equation is: 131° - 84.4° = 46.6°
difference.
If the difference is a positive number, use the graph given in
Figure 2-2 for step 4. If the difference is a negative number,
use the graph given in Figure 2-3 for step 4.
4.
Using either Figure 2-2 or Figure 2-3, as determined above (see
NOTE), perform the following procedure:
10
190 195
200 205
210 215
220
225
10
20
30
40
POSITIVE DIFFERENCE BETWEEN SATELLITE AND SITE LONGITUDES
Differences Between Site and Satellite
SERIES 8060 6-METER EARTH STATION ANTENNA
ANTENNA SITE SELECTION (120° AND 180° ANTENNA)
NOTE
5
0
230
235 240
245
250
255
260
265
50
60
70
80
70
60
50
LATITUDE
LIMITS OF
40
CONTIGUOUS
UNITED STATES
30
20
10
90
13600
2-4
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