Chapter 2: Operation
36 List of alerts
HDOP
Exceeded
(C)
Degraded
position
accuracy.
HDOP has exceeded the user
defined threshold.
Improve GNSS
reception
conditions. Bad
reception
conditions can
be caused by
electromagnetic
noise, broken
antenna/cable or
nearby large
structures.
Make the
receiver use
more satellites by
changing to
GPS/GLONASS
mode, disable
corrections
and/or
decreasing
satellite elevation
limit.
Loss of
position (W)
No position fix. GNSS reception conditions are
bad.
The antenna has disconnected.
RAIM Status:
Caution (C)
The accuracy
level is
unknown.
The receiver is using less than 6
satellites.
RAIM Status:
Unsafe (C)
Possibly
unreliable
position fix.
The user defined accuracy limit
has been exceeded.
Connection
lost to
receiver (W)
The system is
unable to report
a position.
The receiver is not powered on.
The connection between the
Control Panel and the receiver
has been cut.
Reboot the
receiver.
Repair the
connection
between the
Control Panel
and the receiver.
Alert Consequence Reason Remedy
Table 9: List of alerts (Continued)
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