0
10
20
30
40
50
60
70
80
0
20
40
60
80
10
30
50
70
90
ANTENNA
FEED
NORTHERN
SOUTHERN
POLARIZATION CHART SIGN VALUES (+ OR -)
HEMISPHERE HEMISPHERE
ANTENNA SITE WEST OF SATELLITE LONGITUDE
-
+
ANTENNA SITE EAST OF SATELLITE LONGITUDE
+
-
EARTH STATION LATITUDE IN DEGREES NORTH OR SOUTH OF EQUATOR
POLARIZA
TION + OR – (SEE ILLUSTRA
TION)
" L" IS THE DIFFERENCE BETWEEN THE EARTH STATION
ANTENNA SITE LONGITUDE AND THE SATELLITE LONGITUDE
POLARIZATION CHART
+
–
CHART 1
75
°
60
°
40
°
30
°
20
°
15
°
10
°
5
°
Feed Rotation (Facing Antenna)
For + Polarization, Rotate CCW (Counter Clockwise)
For - Polarization, Rotate CW (Clockwise)
9
