CityCom CCA 600 Series, Manual, Page: 16 / 20

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CityCom
R
Zenith
Elevation angle
West
Azimuth angle
East
South
Horizon
d) Final tightening of the antenna
• Tighten the nuts on the
bracket
using your hand. Subsequently
tighten the wing nuts using an open-ended spanner (AF 10 or
13 mm) by one turn each.
c) Fine adjustment
• Loosen the screws on each side of the mast
fi
xing and swivel
the antenna slightly upwards and downwards, until you either
measure the strongest antenna signal on your antenna meter
or until you visualize the best image quality on your screen: to
do this, swivel the antenna upwards and then downwards until
you come to the points where the so-called “
fi
sh” (analogue)
or “blocks” (digital) appear on your screen. Adjust the antenna
between these two limits.
• Alternate correcting the orientation (azimuth) and inclination
(elevation) until the measurement or image results no longer
improve.
Note: There is a risk of the antenna twisting when the nuts
are being tightened on the clamp! You should bear
this in mind while performing fi ne adjustment (and
take advantage of this for a precise adjustment).
• For CCA 600/x:
Tighten the screws
left and right
of the bracket on the
inclination scale
(torque spanner: max. 5 Nm).
•
At the end, make sure
all screw
fi
xings are tight.
• Insert the cables in the opening on the bottom of the boom and
fasten these so that they do not chafe and are not damaged by
wind.
• For CCA 750/x and CCA 850/x:
Tighten
both screws
on each side of the
mast fi xing
(torque
spanner : max. 7 Nm).