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• For good reception, an unobstructed “view” to the south
(+/- 20°) must be ensured, at an elevation of about 30°. The
following satellites are then available for selection:
Reflektormitte
• Do make sure that there are no obstacles between the
parabolic antenna and the respective satellite (such as
trees, roofs, house eaves or other antennas). Such items
can impair reception to the extent that during unfavourable
stormy weather the signal is lost altogether.
Ø 48-90 mm
Installing the antenna
When installing the antenna carrier (mast or wall boom),
ensure that it is standing upright. Otherwise, there may be
problems with the alignment of the antenna to the satellites.
a) Requirements on the antenna carrier
Use
only
masts or support tubes that are
specially designed
for installation of antennas
. Other tubes generally do
not have the strength required to withstand the forces
of wind and weather.
• For
mast installation,
select a tube diameter between
48 and 90 mm, with a wall thickness at least 2 mm.
For
wall installation,
Kathrein recommends the use of
ZAS 60 or ZAS 61 wall brackets.
• For mast installation on a roof, the mast must
be clamped for
at least 1/6 of its free length
(in the example bottom right this is 0.7 m).
b) Several antennas on a single antenna carrier:
• Install the parabolic antenna
as far down
the mast
as
possible
, so as to minimise the bending moment at the
clamping point.
• Under no circumstances exceed the maximum value for
the
loading
on the mast or mast support, as stated in the
Technical Data. Suf
fi
cient cognizance of the maximum loading
is achieved if you arrange your antenna system as shown
in example bottom right and use conventional domestic
antennas together with mast components from a specialist
supplier (tube in steel grade St 52 with outer diameter
60 mm and wall thickness 2.5 mm at the mast clamping
point – e.g. ZSH 59 from Kathrein).
1 TÜRKSAT
42° East
2 ASTRA 2 group
28.2° East
3 ASTRA 3 group
23.5° East
4 ASTRA 1 group
19.2° East
5 EUTELSAT W 2 16° East
6 EUTELSAT
HOTBIRD
13° East
7 EUTELSAT W 1 10° East
8 HISPA-Sat
30° West
If you arrange the structure differently you must calculate wind loading and bending moment at the
clamping point as speci
fi
ed in DIN EN 60728-11 (or have a specialist do the calculation for you).
East
South
West
Centre of the
re
fl
ector
3.5 m
3.0 m
2.0 m
min. 0.7 m
