EchoStar DISH 500+, Руководство по установке

Страница: 6 / 28

4
Locating the Antenna Assembly
Use the Reflector Pointing Angles that begin on page 15 to find the elevation, skew, and azimuth angles
using your location’s ZIP code. DISH 500+ and DISH 1000+ use slightly different skew angles.Ensure
you choose the correct set of angles for the antenna system you are installing. Write the angles in the
space provided below.
Using these elevation and azimuth angles, find a mounting location for the antenna assembly where it
can be pointed toward the satellites located at these angles. Use a compass and azimuth angle to find the
direction along the horizon where the reflector should be pointed. Then use the elevation angle to find out
how high the satellites are in the sky from your location. Make sure this line of sight will not be blocked
by future growth of nearby trees or other foliage. Also make sure your mounting location provides
sufficient clearance to rotate the reflector as needed to point toward the satellites.
Assembling and Mounting the Antenna System
Follow these instructions to assemble the antenna system, mount it, and point it in the direction of the
satellites.
Find location for the reflector. Using a compass and the azimuth and elevation angles, find
a location for the reflector where it can be pointed toward the satellites located at the angles
provided in the Reflector Pointing Angles tables. Make sure nothing blocks the line of sight
between the reflector and the satellites.
Mount mast to solid surface. Mount the mast to a solid surface so that the reflector cannot
move or be bumped out of alignment. Keep in mind that physical and environmental conditions
can block your reflector’s ability to receive a clear satellite signal. Never mount the antenna
assembly to a tree or a public utility pole.
Install struts . Install struts at this time, using the instructions that came with the struts.
Align mast vertically. Align the top part of the mast so that it is absolutely vertical. If the top
part of the mast is off vertical by only a few degrees, it will be difficult or maybe even impossible
for you to find the satellites. Take at least two readings with a level, on the upper mast, that are
90 degrees apart from one another (see Figure 1).
Assemble the antenna assembly without LNBF . Assemble the antenna assembly as
shown in Figure 1, except do not attach the LNBF assembly at this time.
1.
2.
3.
Elevation: Skew: Azimuth:
4.
5.