Kathrein CAS 80ws Handbuch Seite 17

b) Setting the direction (azimuth)
For the following steps you may need as assistant, if you yourself
are unable whilst performing the setting to read the results of the
alignment work on an antenna meter or screen connected to the
satellite receiver. The precise alignment 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.
• Now slightly loosen the wing nuts on the mast clamp.
• Twist the antenna so that it faces roughly south. Then slowly
twist the antenna about its central axis to left and right until
the best reception is obtained for the selected channel.
Then tighten the wing nuts initially just enough to prevent
•
the antenna turning.
c) Fine adjustment
• Once again slacken the bolt 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 first "little fish" (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 inclination
(elevation) until the measured results or the picture quality
show no further improvement.
Note:
Tightening the nuts at the clamping piece can
cause the antenna to turn slightly! You should
allow for this at the fine adjustment stage (and
if necessary make use of it when starting the
adjustment operation all over again).
d) Finally tightening the antenna clamps
Then tighten the nuts at the clamping piece by hand, working
•
across diagonals. Then use a 13 AF open-ended spanner to
tighten up each of the wing nuts one turn.
• After this, tighten the bolts on the left and right of the support
of the inclination scale, using the hexagon key first with
the short end to tighten them finger-tight and then with the
long end tighten them a further 1/4 – 1/2 turn (torque wrench:
5 – 8 Nm).
• Finally check once again that the bolted connections are
secure.
• Attach the cables to the carrier arm by clipping them into the
cable clips within the carrier arm and use cable ties to secure
them all along the antenna carrier, so that they cannot chafe
and suffer damage in the wind.
West
Azimuth angle
Tighten finger-tight
17 / 36
Zenith
Elevation angle
East
South
Fully tighten: 1 turn