Motorola DSR405 - Manual (Page 34)

3
20
Initial Adjustment to the Compass
Direction Setting
To make an initial adjustment to the compass orientation of the satellite:
• Use the wrench to loosen the bolt(s) so that you can turn the satellite dish on
the mounting pole to change its compass direction. Then point the dish so that
it faces directly south (if you are in the Northern Hemisphere) or directly north
(if you are in the Southern Hemisphere).
• Refer to the information supplied with your system, and again find the
compass setting (also called the azimuth) for the city nearest to where you live.
It is measured in degrees.
• Turn the satellite dish so that the LNBF support is pointing to the correct
degree setting. To do this, use a compass to determine the correct direction.
Then mark the position for the compass setting about 5 meters (15 feet) away
from the satellite dish. Point the satellite dish as accurately as possible toward
the marker.
• Choose the nearest city to your location (the same one you chose when you
adjusted the LNBF position and the elevation). Then determine how far you
are located to the east or west of that city. Since the compass setting for your
location will change by approximately one degree for every 160.9 km (100
miles) that you are east or west of the listed city, you can adjust the satellite
dish compass setting in the following ways:
• If you are located in the Northern Hemisphere:
- If your location is east of the listed city, compensate by moving the dish
clockwise by one degree for every 160.9 km (100 miles) that you are
east of the listed city.
- If your location is west of the listed city, compensate by moving the
dish counterclockwise by one degree for every 160.9 km (100 miles)
that you are west of the listed city.
• If you are located in the Southern Hemisphere:
- If your location is east of the listed city, compensate by moving the dish
counterclockwise by one degree for every 160.9 km (100 miles) that
you are east of the listed city.
- If your location is west of the listed city, compensate by moving the
dish clockwise by one degree for every 160.9 km (100 miles) that you
are west of the listed city.
• Tighten the bolt(s) on the mounting pole enough to hold the position in place
so that you can still move it a little at a time. You will fine-tune its position
later.