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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 tightening 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.
).
West
Azimuth angle
Tighten fi nger-tight
).
7 / 36
Zenith
Elevation angle
East
South
Fully tighten: 1½ turns
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