User Guide

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NAV4 PAGE
This is one of
the coolest pages in
the system. In its most
basic mode, seen
here, it provides a
“God’s eye view” of your position, track, and flight planned route.
The field at lower left can be cycled between ground speed, desired
track, time to the next waypoint, or numeric left/right deviation.
All the really interesting stuff, however, happens on the map.
At its lower left is a number representing the range from top to
bottom. To change the range, click directly on the range field. A
left-click decreases the range and a right-click increases the range.
If you set the range past the highest or lowest values, you’ll see the
word AUTO. This range setting lets the system choose; it’ll pick
the lowest range that’ll show the current waypoint plus the next
one beyond it.
Clicking the CRSR button will activate the NAV4 menu.
After clicking the CRSR button, MENU? appears above the range
field. Clicking the MENU? field allows you to choose how the
map is oriented and what will be displayed. illo: fig 3-131
Airports, and VORs can all be selected ON or OFF. You may also
select whether the map will be displayed with north up, the
desired track up, or your actual track-made-good up. At any time
when viewing the map, pressing >CLR will “declutter” it of every-
thing but the flight-plan waypoints; a second push will bring them
back. Click the CRSR button again to remove the MENU? options.
If the GPS does
not have an
active waypoint,
the NAV1 page is
in flag mode and
is not usable for navigation.
NAV2 PAGE
This is the
“present position”
page, and it’s very
handy when ATC
requests a posi-
tion report. The
default display gives range and bearing from a nearby VOR, but
you can use the cursor to insert any reference you want. (ATC,
however, will not be pleased if you give your position over
Oklahoma in terms of, say, range and bearing from Beijing.)
Click in the reference field to modify the reference way-
point. Click in the
TO/FROM field to
toggle between
TO and FROM
radials. Click on
the PRESENT
POSN field to toggle the NAV page 2 between reference waypoint
and present position in latitude and longitude.
NAV3 PAGE
This is the “time” page: it gives you the current (very accu-
rate) GPS system
time in the time
zone you’ve
selected; the time
you took off
(actually, when
your ground speed first exceeded 30 knots); your ETA at the final
destination of your flight plan; and how long you’ve been flying.
Click on the time zone field to toggle the reference time zone. The
Depart and ETA times will be adjusted accordingly. Click on the
flight time field to reset the current time to zero
Appendices
Appendices