Page 51 - hisdeSAT annual report 2011
P. 51
TECHNICAL ACTIVITY
5.1 The satellite
communications system
The consolidation of HISDESAT as one of the principal
worldwide suppliers of secure communication services
by satellite, on the military K and Ka bands, for
governmental applications, is now a reality with its
range of satellite communication systems.
49 The aforementioned system has as its ob- has been demonstrated on numerous previ-
jective to provide communication services ous missions. Overall, the satellites built by
for applications of a governmental nature, SS/L have accumulated over 1.100 years of
both civilian and military. It consists of the service.
following systems:
• SpainSat. Located at 30º Both satellites have been designed to pro-
The platforms of the West, it provides coverage vide service during a 15 year operational
which includes practically life and the onboard antennae have been
two satellites of the the entirety of the Ameri- configured in such a way that they provide
can continent, Africa and a combination of beams, both fixed and
HISDESAT system, Europe through to the Mid- adaptable, in order to maximize the flexi-
dle East. bility of the system. The adjustable beams
SpainSat and xtar- • Xtar-Eur: Located at 29º have no restrictions in terms of where they
Eur, are based on East, it provides coverage point within the area of coverage of each
from Brazil through to In-
satellite and at any time may be trained
the lS-1300 Space donesia, including Europe, upon a specific area. On the other hand,
Africa, the Middle East and
various transponders can be used with the
Systems/loral a large part of Asia. same beam.
model The platforms of the two Each satellite is capable of providing 1.000
satellites of the HISDESAT MHz of dual-polarized broadband, both to
system, SpainSat and Xtar- the right and left, thereby optimizing the
Eur, are based on the LS-1300 Space Sys- use of the spectrum available.
tems/Loral model, with 3-axis stabilization,
the effectiveness and reliability of which
© CNES 2006
