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Zenith
Elevation angle
Azimuth angle
West
East
South
Horizon
b. Setting the Direction (Azimuth)
If you yourself are unable whilst performing the adjustments
to read the results of the alignment work on an
antenna
meter
or
screen
connected to the satellite receiver, you may
need an assistant for the following steps. The precise align-
ment of the antenna can be achieved only if a digital antenna
meter is used. Ask your dealer about this.
–
Set the satellite receiver to a known channel so that you
can check that you have really “locked on” to the desired
satellite.
–
Turn the antenna so that it roughly faces south. Then
slowly twist the antenna about its mast axis to left and
right until the best reception is obtained for the selected
channel.
c. Fine Adjustment
–
Once again slacken the bolts
A
on the inclination scale
and tilt the antenna lightly upwards and downwards until
either the antenna meter shows the strongest antenna
signal or visual assessment is judged to achieve the best
picture. To do this, tilt the antenna far enough upwards
and downwards to get to the limits when the fi rst “little
fi sh” (analogue) or “little blocks” (digital) appear on the
screen. Position the antenna midway between the two
limit points.
–
Now, alternately correct the direction (azimuth) and inc-
lination (elevation) until the measured results or the pic-
ture quality show no further improvement.
Note:
Tightening the wing nuts at the clamping pieces can
cause the antenna to turn slightly! You should allow for
this at the fi ne adjustment stage (and, if necessary, make
use of it when starting the adjustment operation all over
again).
If necessary, once again optimise the polarisation
angle(s) of the feed system(s) and the angle of the
tiltable support for securing the feed system(s).
d. Finally Tightening the Antenna Clamps
–
Fully tighten all bolted connections. Finally check once
again that all the bolted connections are secure.
–
Attach the cables using cable ties to secure them at any
points where there is a risk they may chafe and suff er
damage in the wind.
