Gilat Satellite Networks
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Confidential and Proprietary Information
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7
Power Requirements
The power consumption of the SR1500 antenna components is detailed below.
Typical power consumption is relevant for general sizing of the power system to
support the system.
Maximum power consumption relates to extreme situations where the antenna
DC motors need full power to rotate the platform on the azimuth and elevation
against the inertia (such as when a vehicle turns sharply or travels at an
extreme tilt). This is relevant when designing for peak system requirements.
The additional power consumption of peripheral equipment needs to be considered
when planning the overall power budget. The actual installation should be
performed by an expert in the field.
Gilat recommends using a true sine wave DC to AC power inverter,
0 AWG cables for connection in the vehicle, and a secondary battery
or UPS, including a circuit breaker to prevent damage to the
equipment or vehicle.
Table 1: Power consumption of SR1500 system components
S
S
y
y
s
s
t
t
e
e
m
m
C
C
o
o
m
m
p
p
o
o
n
n
e
e
n
n
t
t
P
P
o
o
w
w
e
e
r
r
C
C
o
o
n
n
s
s
u
u
m
m
p
p
t
t
i
i
o
o
n
n
T
T
y
y
p
p
i
i
c
c
a
a
l
l
M
M
a
a
x
x
i
i
m
m
u
u
m
m
Antenna
50 W
110 W
ACU
8 W
20 W
STB, typical
10 W
25 W
Total
Uni Pol antenna using one STB
68 W
155 W
Dual Pol antenna using three STBs
88 W
205 W
The ACU provides power to the antenna and STBs, and is typically
powered by a 10-30 VDC/110 W source. The values shown are for
individual unit consumption. Actual power consumed depends on
the applicable efficiency coefficient (up to 15%) due to indirect
powering of each unit through the ACU.
