Page 30
958 Operator’s Manual, Rev. A
Chapter 3 - Using the Controls
Using the PWR key
To turn the 958 on,
briefly press
the
PWR
key. The 958 emits
several short beeps as it first displays the
STARTUP
screen,
followed by the
SELF-TEST
screen. This screen displays the
results of the 958’s self-tests, which are automatically run each
time you turn power on. After you clear the
WARNING
MESSAGE
, the 958 will display navigational data.
To turn the 958 off,
press and hold
the
PWR
key for several
seconds until the screen goes dark.
Using the five function keys
The five function keys—
CHART
,
STEER
,
WAYPTS/ROUTES
,
STAR
, and
NAV LOG
—located across the lower left part of the
958, control the functions you’ll use most often. You can press
any function key, at any time, on any screen, to display the
information you need.
CHART function key
The
CHART
key displays your position on the
CHART
screen
(shows lat/lon graphically) or on the
GPS POSITION
screen
(shows lat/lon numerically). Both screens also display COG
and SOG.
You can display position as any of the following:
>
as GPS/WAAS or DGPS lat/lon coordinates
>
as lat/lon from an external loran receiver (if connected)
>
as loran TDs (if you’ve connected a loran to the 958)
>
as Phantom Loran TDs (by converting GPS coordinates
to Loran TD’s)
STEER function key
The
STEER
key shows you how to steer precisely along a
course line to a designated waypoint. Your position is shown
in relation to your course line, and numerical information is
shown to help you steer directly to your waypoint, including
cross track error, distance and bearing, estimated time to
waypoint, estimated time of arrival, COG and SOG, and speed
of advance.
“Where am
I?”
“How do I get
to my
waypoint?”
Summary of Contents for 958
Page 1: ...NORTHSTAR 958 Integrated Navigation System Operator s Manual P N GM958UM Revision A ...
Page 2: ......
Page 8: ...Page iv 958 Operator s Manual Rev A ...
Page 26: ...Page 18 958 Operator s Manual Rev A Chapter 1 Getting Started ...
Page 128: ...Page 120 958 Operator s Manual Rev A Chapter 8 Understanding Waypoint Route Navigation ...
Page 150: ...Page 142 958 Operator s Manual Rev A Chapter 10 Understanding Radar Functions ...
Page 198: ...Page 190 958 Operator s Manual Rev A ...
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