CHAPTER 2. ASTERX SB
I
3 OVERV
I
EW
The power consumption of the AsteRx SBi3 depends on its con
fi
guration. The following
settings directly in
fl
uence the amount of power consumed:
•
The number of enabled GNSS frequency bands. For example, a receiver con
fi
gured
to track signals only in the L1 and L2 bands will consume less than a receiver
con
fi
gured to track in the L1, L2 and L5 bands. Use the
setSignalTracking
command
to enable/disable signals. Note that a given frequency band is disabled only when all
GNSS signals in that band are disabled.
•
The activation of the Ethernet interface.
I
n power-critical applications, it is
recommended to not use Ethernet and to turn o
ff
the associated hardware. This can
be done with the
setEthernetMode
command.
•
The
activation
of
the
Wideband
I
nterference
mitigation
(WB
I
)
with
the
setWBIMitigation
command.
The following table shows the nominal power consumption measured when 12 VDC is
supplied to the PWR connector:
Configuration
Typical Power
Consumption
GPS + GLONASS L1 + L2, RTK, Single antenna (externally
powered), 10Hz internal logging active
1.3 W
GPS + GLONASS L1 + L2, RTK, Dual antenna (externally
powered), 10Hz internal logging active
1.65 W
Ethernet on
+0.3 W
Antenna powered
Antenna type
dependent
2.3 Powering the receiver
The receiver can be powered through either:
•
The PWR connector (5 to 36 VDC)
•
The Ethernet connector (Power over Ethernet - PoE, 37-57 VDC). (Please note that only
mode A, as speci
fi
ed in the 802.3af standard, is supported.)
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