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●
For good reception, an unobstructed “view” to the south (+/-
20°) must be ensured, at an elevation of about 30°. The fol-
lowing satellites are then available for selection:
1 TÜRKSAT
*)
42° Ost
7 EUTELSAT W 1
10° Ost
2 ASTRA 2-Gruppe
*)
28,2° Ost 8 EUTELSAT W 3
7° Ost
3 ASTRA 3-Gruppe
23,5° Ost 9 THOR
1° West
4 ASTRA 1-Gruppe
19,2° Ost 10 Telecom
5° West
5 EUTELSAT W 2
16° Ost
11 HISPA-Sat
30° West
6 EUTELSAT
HOTBIRD
13° Ost
●
Do make sure that there are no obstacles between the para-
bolic 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 wea-
ther the signal is lost altogether.
*) The reception is dependent upon the respective location and the satel-
lite coverage zone
If you arrange the structure diff erently you
must calculate wind loading and bending
moment at the clamping point as specifi ed in
DIN EN 60728-11 (or have a specialist do the cal-
culation for you).
Ø 60-90 mm
East
South
West
Clamping point
Wind load 1
(up to 20m above ground)
Wind load 2
(> 20m above ground)
1.1 m
0.75 m
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
supports 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 securing the antenna, select a tube diameter bet-
ween 60 and 90 mm, with a wall thickness at least 2 mm.
Kathrein recommends the following components for ins-
tallation:
~ On level ground: Stub mast ZAS 15
~ Wall mounting: Wall bracket ZAS 16
~ On the roof: Mast tube ZAS 03 or ZAS 04
If you do decide in favour of roof mounting, you must ensure
that the installation complies with EN 60728-11, which speci-
fi es a maximum permissible bending moment of 1650 Nm at
the clamping point.
This translates into the maximum permissible mast lengths
for wind loadings shown as cases 1 and 2 in the diagram on
the right.
If a moment of 1650 Nm might be exceeded at the clamping
point, for instance because of a longer mast with additional
antennas mounted on it, EN 60728-11 requires that a struc-
tural engineer should assess the installation to provide verifi -
cation of safety of the installation and/or the structure of the
building.
