Hughes AN6-074S, Руководство по установке

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Chapter 5 • Pointing the antenna
1036469-0001 Revision D
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5. If there is no signal, sweep back 1/8 in. at a time to the left
until you detect a signal.
If you cannot detect a signal, there may be an error.
If there is
no signal, perform the following checks.
– Check the coaxial cable connections at the LNB, IDU, and
all the connections in between.
– Make sure there are no obstructions such as trees blocking
the signal.
– Make sure you copied and properly set the azimuth,
elevation, and polarization values.
– Verify the azimuth setting by moving 15 ft in front of or
behind the antenna and taking another compass reading.
Metal near the compass, such as a car or even a belt buckle,
can give a false reading.
– Point the front of the antenna reflector to the left of the
estimated bearing.
– Go back to step 2 and try again.
Peaking the signal After the satellite is detected, peak the signal as follows:
1. Mark the mast with a pencil so you can find the azimuth
bearing again.
2. After detecting the satellite, continue turning the antenna
reflector a small amount in the same direction you were
turning it when you began receiving the satellite signal.
Pause for 5 sec after each time you move the reflector.
3. Turn the reflector in this fashion until the signal strength
values displayed by the installation software begin to
decrease.
4. When the numbers begin to decrease, slowly turn the
reflector in the opposite direction until you regain the highest
number that was previously achieved.
Achieving this maximum signal strength is called
peaking the
signal .
5. When you have peaked the azimuth, tighten the three canister
nuts completely.