COM power/volume
COM flip-flop
Large left knob
Small left knob
k
The COM power/volume knob (
x
The large left knob (
) is used to tune the megahertz (MHz) value of the standby COM frequency for the transceiver.
v
The small left knob (
) is used to tune the kilohertz (kHz) value.
W
The COM flip-flop key (
) is used to swap the active and standby COM frequencies. Press and hold to select emergency channel (121.500 MHz).
R
The range key (
) allows you to select the desired map scale. Use the up arrow side of the key to zoom out or the down arrow side to zoom in.
D
The direct-to key (
) allows you to enter a destination waypoint and establish a direct course to the selected destination.
m
The menu key (
) displays a context-sensitive options list. The options list allows you to make settings changes which relate to the currently displayed page.
c
The clear key (
) is used to erase information or cancel an entry. Press and hold this key to immediately display the Default NAV Page.
E
The enter key (
) is used to approve an operation or complete data entry. It is also used to confirm information, such as during power on.
t
The large right knob (
) is used to select between the various page groups; NAV, WPT or AUX. With the on-screen cursor enabled, the large right knob allows
you to move the cursor about the page.
r
The small right knob (
) is used to select between the various pages within one of the groups listed above. Press this knob momentarily to display the on-screen
cursor. The cursor allows you to enter data and/or make a selection from a list of options.
KEYS AND KNOBS
) controls unit power and communications radio volume. Press momentarily to enable/disable automatic squelch control.
Range (map scale)
Direct-To
Clear
Large right knob
GNC 420
Menu
Enter
Small right knob
Drukuj stronę