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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
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 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 fi ne adjustment stage (and if necessary make
use of it when starting the adjustment operation all
over again).
d) Finally tighten the antenna clamps
• Then tighten the nuts at the
clamping piece
by hand, working
across diagonals. Then use a open-ended spanner (size 13) to
tighten up each of the wing nuts one turn (
).
• After this, tighten the bolts on the
left and right
of the clamp
of the
inclination scale
, using the hexagon key
fi rst with
the short end
to tighten them
fi
nger-tight and then with the
long end
tighten them a further
1/4-1/2 turn
(torque wrench:
5-10 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.
Zenith
Elevation angle
West
East
South
Azimuth angle
Horizon
Tighten by hand
Fully tighten: 1 ½ turns
