NorthStar 958 Operator's Manual page 73

DGPS message
NO CORRECTIONS
NOT INSTALLED
SC-104 IN OK
SC-104 IN FAIL
RESULTS UNKNOWN
BCN UNHEALTHY
DISABLED
INIT OR SYNCH
958 Operator's Manual, Rev. A
low for best results. Table 3 below describes the noise lev-
els.
Table 3: Definitions of noise levels
Noise level value
200 or less
200 - 1,000
1,000 - 3,000
5,000 - 10,000
A summary of DGPS operations is displayed at the bottom of
the DGPS STATUS screen. The table below summarizes these
status messages.
Table 4: DGPS status messages
Meaning
Beacon receiver status message is being received, but no SC-104
DGPS corrections are present.
No beacon receiver status message is being received, nor has an
external DGPS source been chosen.
An external source has been chosen, and the required data is being
received.
An external source has been chosen, but the required data isn't
being received.
The communication link to the GPS receiver has a problem.
The beacon station in use is either unhealthy or unmonitored.
DGPS has been turned off by the user (to enable DGPS, see
"Changing your receiver settings" starting on page 172).
The GPS receiver is trying to initialize the messages from the bea-
con receiver.
Chapter 5 - Determining Your Position
Meaning
excellent
good
typical at night
thunderstorms or electrical noise
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