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| Dish Installation
Choosing The Site for Dish Installation
The first thing you need to do is choose the installation
site. The area must have a clear "line of sight" to the
satellite. This means there can be no obstruction between the dish
and the satellite. This includes building, tree branches, mountain,
etc. In order to receive a good signal, select an outdoor site with
a clear, unobstructed view of the South, Southeast, or Southwest.
If you install the dish in the winter, leaves that are normally
on the branches may not be present. A problem with reception may
occur when the leaves grow back in the spring and summer. |
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| Dish Assembly
Click here
for 75 cm (30 inch) dish assembly picture.
Click here
for 90 cm (36 inch) dish assembly picture.
Dish Mount Installation |
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Figure 1 |
Figure 2 |
Figure 3 |
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- Insert the Stand Pipe between the two ears of the Mount Bracket
as in Figure 1.
- Ensure that both the pivot bolt and the adjustment bolt are
in place as in Figure 2.
- The top of the Stand Pipe must be mounted vertically, perpendicular
to the ground, otherwise it will complicate pointing the dish
at the satellite. We suggest using a contractor's level and placing
it on top of pipe the pipe as in Figure
3.
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| Dish Pointing Basic
To receive broadcast signals for Telstar 5 or any satellite, your
dish must be positioned correctly. The exact direction that your
antenna will have to be pointed is dependent upon your location.
The elevation angle
is the angle relative to the horizon, that the antenna must be raised
in order to be able to receive signals from a particular satellite.
The azimuth compass bearing is the compass bearing,
left to right, that the antenna must be pointed toward in order
to receive the satellite signal. Those two angles will help you
determine if the location you have selected for placement of your
antenna will permit unimpeded satellite reception. If you don't
know the elevation angle and the azimuth compass bearing of where
you live click here. To calculate the
elevation and the azimuth, you need to know the satellite degree
and your Zipcode. For example: Telstar is located at 97° W,
SatMex is at 116.8° W, and Galaxy 11 is at 91.0° W. If you
are not familiar with the orientation of the location where you
would like to place the antenna, a directional compass will be very
helpful. |
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- Hold the compass horizontally in your hand in front of you.
- Ensure that you are at an adequate distance away from any metal
object that may give you a false compass indication. As you hold
the compass, allow the compass needle to stop moving. Once it
has stabilized, the arrow or red end of the compass needle should
point toward the North.
- Gently rotate the compass such that the 0-degree mark on the
compass scale sits under the arrow, or red end of the needle,
pointing toward the North
- Since 0 degrees on the compass denotes North you can now locate
the compass azimuth bearing on the compass scale. You will probably
note that the direction of the satellite, as indicated on the
angle calculation or data sheet, is somewhat towards the South.
That direction is the physical direction that the dish will have
to be pointed.
- Once you have oriented yourself in that direction, consider
the elevation angle. Now, make a judgment based on the elevation
angle of where you live. Keep in mind that 45 degrees is halfway
between 0 degrees and the horizon while 90 degrees is straight
up. If while looking in that direction, given both the compass
azimuth and elevation for your location, you do not see any obstacles,
that location should be adequate for the placement and installation
of your dish-antenna.
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| Dish Aiming Procedure
- With the dish facing South and an unobstructed view of the sky,
place the provided compass on the ground 10' to 20' behind the
dish to avoid magnetic interference. Turn the compass until the
compass needle aligns exactly with magnetic North (or make sure
the color needle points north at 0 degrees). Use a straight object
such as a stick or rod between the compass and the dish to match
the Azimuth angle of your location. Move the whole dish to face
the same direction as the stick or rod.
- Set your basic elevation angle. Refer to the elevation scale
located on the elevation plate at the back of your dish. To set
the correct elevation angle, loosen the bolts that connects the
elevation plate to the triangle base just enough so that the reflector
can move up or down without binding. Carefully set the elevation
to the angle value of your area.
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| Dish Alignment & LNBF Mount
Before
the actual dish alignment can be done, it is necessary to connect
a coax cable between the LNBF, attached to the dish and your receiver.
Both connections use the standard coaxial F-connector. Now your
dish will be in position to lock in on the satellite signal. You
will need to have your receiver connected to your television.
It is recommended that you place your satellite receiver and television
set close to the dish during the dish alignment procedure. If that
is not possible due to where the dish is located, a second person
may be helpful to relay information seen on the screen of the TV
when the dish is being aligned. Do not turn the power on until all
the cable connections have been made. There are two options when
connecting the receiver to your television or monitor. The receiver
has both audio/video outputs as well as a regular coax output on
either channel 3 or 4. Attach the appropriate cables according to
the system you have. If you use the standard coax, channel 3 or
4 output, ensure that you select the channel, 3 or 4, that is not
used in your area for local off-air broadcast television. Your television
would have to be set to the channel you selected, 3 or 4, in order
for you to receive the programming. If the audio/video outputs are
used, your television typically would need to be switched to the
"video" input mode.
Now turn on your receiver and television. Use the on screen menu
to locate the signal strength meter on your television. If you are
using the Coship receiver the signal meter are located both in front
of the receiver as well as on screen.
Ask a helper to watch the signal strength screen for indications
you are receiving the signal. Stand behind the dish, and holding
its outer edges, slowly turn it a little to the left or right about
3 or 4 mm at a time to adjust the azimuth. Pause 4 or 5 seconds,
giving the receiver enough time to lock in on the satellite signal.
Continue turning the dish in this way until you have acquired the
signal then adjust the elevation for maximum signal quality. Note:
The Signal Strength reading does not need to be "100." Lock
in on the highest possible signal. |
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