CHAPTER 4. CONFIGURING THE ALTUS NR3 AS A ROVER
Step 4: Beam Selection Mode and Service
For SECORX con
fi
guration, select the tab named
SECORX
on the web interface. The default
L-band beam selection mode is
auto
as shown in Figure 4-21. In this mode, the demodulator
will try to lock on to a visible beam, preferring beams to which access has been granted.
In
manual
mode, the demodulator will attempt to lock on to the beam selected from the
Manual beam selection
drop-down list ignoring all other beams. The beams in this list
can be pre-set in the
Advanced Settings
expandable
fi
eld. A beam is characterized by a
frequency and data rate.
Figure 4-21:
Selecting the L-Band beam
Without a SECORX subscription, the Altus NR3 will still be able to track visible L-Band signals.
Figure 4-22 shows the L-Band Tracker Status
fi
eld when the Altus NR3 is locked onto signals
from the 25E satellite which transmits at 1545.825 Mz. After purchasing a subscription you
will need to track one of the beams for activation over the air. To guarantee successful
activation, the LBand signal should be received with a carrier-to-noise ratio of 36 dB-Hz or
higher.
Figure 4-22:
L-Band Tracker Status
fi
eld when locked on to an L-Band signal
Step 5: Verifying the configuration
With a valid SECORX subscription, the Altus NR3 will be able to decode PPP correction data.
The
Access
line in the
L-band decoder Information
fi
eld should show
Access Enabled
as
depicted in Figure 4-23. After a few moments, the Altus NR3 positioning mode should change
to PPP as indicated by the highlighted icon in the upper status
fi
eld.
41
Summary of Contents for ALTUS NR3
Page 1: ...Altus NR3 User Manual ...