NorthStar 951X Installation Manual - page 40
SECTION TWO - Installing the unit
Page 30
951/952 INSTALLATION MANUAL Revision B
Advisory message
When the unit is powered up, a special advisory message is displayed as a
precautionary reminder that the unit’s chart cartography must not be
relied upon as the sole means of safe navigation. Although every effort
has been made to ensure that the data used by the unit is as close to
paper charts as possible, errors and omissions are inevitable. Therefore,
extreme care must be used when navigating by means of electronic
charts.
It is the captain’s responsibility to cross-check the 951/952 against
other sources of navigation data.
To proceed, you must first acknowledge your acceptance of the advisory
message by pressing any one of the five function keys located beneath
the display screen.
GPS signals
Once the unit is turned on and has acquired satellite data, you can check
the quality of the GPS signals being received by viewing the various satel-
lites’ SNR (Signal-to-Noise Ratio) readings: Press the
key to
view the GPS POSITION screen (as shown at left below), then press the
NOTE:
If the unit’s power has been off and its display screen is “cold,”
a brief warm-up period may be required for the display screen
to achieve its full intensity.