Dawn CONTROL-1500A Manual page 31

CONTROL-1500A Single Axis Antenna Controller
Antenna Latitude
(degrees)
50
55
60
65
70
75
Antenna
Location
(Hemisphere)
Northern
Northern
Southern
Southern
Polar Mount Adjustment
Adjusting a polar mount to track the geostationary satellite arc can be challenging.
We use the following procedure to setup a polarm mount.
1. Insure that the antenna kingpost or mounting pole is vertical.
2. Set the mount's declination angle to the value specified in the table given the antenna
latitude.
3. Set the lattitude angle to the value specified in table 3.3 xx.
4. In steps that follow, the antenna is aligned with geostationary satellites and the antenna
Latitude and East-West Bearing angles are adjusted. If the antenna can receive signals
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph (248) 391-9200 • Fax (248) 391-9207 • sales@DAWNco.com
Delta Angle (degrees) Latitude Angle
0.68
0.65
0.60
0.53
0.44
0.35
Table 3.4 Polar Mount Latitude and Declination Angles
Satellite
Location
Relative to
Pushing Down on the Lower
Antenna
Edge of Reflector Makes
Received Signal Stronger?
East
West
East
West
Chapter 3
(degrees)
50.7
55.6
60.6
65.5
70.4
75.3
East West Bearing Angle Adjustment
ROTATE WEST
ROTATE EAST
ROTATE WEST
ROTATE EAST
Installation/Setup
Declination (degrees)
6.61
7.05
7.45
7.78
8.06
8.28
Lifting Up on the Lower Edge
of the Antenna Makes
Received Signal Stronger
ROTATE EAST
ROTATE WEST
ROTATE EAST
ROTATE WEST
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