3 / 36
●
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° East
6 EUTELSAT
HOTBIRD
13° East
2 ASTRA 2 group
*)
28.2° East 7 EUTELSAT W 1
10° East
3 ASTRA 3 group
23.5° East 8 HISPA-Sat
30° West
4 ASTRA 1 group
19.2° East
5 EUTELSAT W 2
16° East
●
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
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 desi-
gned 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 62
or ZAS 63 wall supports.
–
For mast installation on a roof, the mast must
be clam-
ped 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. Suffi 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 out-
side diameter 60 mm and wall thickness 2.5 mm at the
mast clamping point – e.g. ZSH 59 from Kathrein).
Ø 48 – 90 mm
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 calculation for you).
South
East
West
Centre of the
reflector
