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Chapter 3 - Using the Controls
Page 3-12
information about these options, see "Changing the dis-
play setup" starting on page 13-2.
•
Use the NAVIGATION SETUP key to set the geodetic
datum reference to auto or manual (if set to manual,
choose from a list of 150 datums), preferred loran GRI,
automatic or manual waypoint switching, automatic or
manual calculation of magnetic variation (or else true
north), and calculation of distance, bearing, and XTE
using either a rhumb line or great circle. For more infor-
mation about these options, see "Changing navigation
setup" starting on page 13-9.
•
Use the CHART SCREEN SETUP key to set the display of
individual waypoint symbols, turn on or off the display of
waypoint names and waypoint symbols on the CHART
screen, enable the clearzoom feature, set the length of the
position predictor line, show loran TDs on the CHART
screen INFO BARs and the CURSOR INFO BAR, turn on or
off the display of range rings and the distance scale bar,
turn on or off the display of past trip legs, and turn on the
off the display of a chart-update region on the CHART
screen. For more information about all of these options,
see "Customizing the chart screen" starting on page 4-35.
•
Use the CHART INVENTORY key to load/update any new
charts, delete any charts from the database, and access all
HCRF-specific functions, e.g. for ARCS charts. For more
information about these functions, see "Loading, updat-
ing, and deleting charts" starting on page 13-30.
•
Use the DEMO SETUP key to invoke the demo function
for training purposes, practicing for an upcoming trip, or
just looking ahead to an anticipated destination. You can
set up demo to simulate NMEA/PPNM output for 10 min-
utes. For more information about these functions, see
"Using demo mode" starting on page 13-63.
•
Use the TIME INFORMATION key to show the date and
time (based on the local time zone), and time of today's
sunrise and sunset for the current vessel position. For
more information about the TIME INFORMATION screen,
see "Viewing the time information screen" starting on
page 13-66.
961 Operations and Reference Manual Rev. D
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