Key And Knob Functions; Left-Hand Keys And Knobs; RGht-Hand Keys And Knobs - Garmin 400W Series Pilot's Manual & Reference

TAKEOFF TOUR
Key and Knob Functions

Key and Knob Functions

The 400W-series unit is designed to make operation
as simple as possible. The key and knob descriptions on
the next three pages provide a general overview of the
primary function(s) for each key and knob. This Takeoff
Tour section is intended to provide a brief overview of
the primary functions of your 400W-series unit. Experi-
ment with the unit and refer to the Reference sections
for more information.

Left-hand Keys and Knobs

GPS 400W
Left-hand Keys and Knobs
The COM power/volume knob (420W/430W
k
only) controls unit power and communications
radio volume. Press momentarily to disable
automatic squelch control. In the GPS 400W,
this control is used only for power.
The VLOC volume knob (430W only)
j
controls audio volume for the selected VOR/
Localizer frequency. Press momentarily to
enable/disable the ident tone.
The large left knob (COM/VLOC)
h
(420W/430W only) is used to tune the mega-
hertz (MHz) value (to the left of the decimal
point) of the standby frequency for the com-
munications transceiver (COM) or the VLOC
receiver, whichever is currently selected by
the tuning cursor.
2
190-00356-00_0B.indd 2
GNC 420W/AW GNS 430W/AW
The small left knob (COM/VLOC)
f
(420W/430W only) is used to tune the kilo-
hertz (kHz) value (to the right of the decimal
point) of the standby frequency for the com-
munications transceiver (COM) or the VLOC
receiver, whichever is currently selected by the
tuning cursor. Press this knob momentarily
to toggle the tuning cursor between the COM
and VLOC frequency fields.
The COM flip-flop key (420W/430W only)
W
is used to swap the active and standby COM
frequencies. Press and hold to select emer-
gency channel (121.500 MHz).
The VLOC flip-flop key (430W only) is
V
used to swap the active and standby VLOC
frequencies (i.e., make the selected standby
frequency active).
190-00356-00 Rev B
9/7/2007 2:48:57 PM