Garmin GNC 420AW Короткий довідник - Сторінка 5

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Left-hand Keys and Knobs

In the GNC 420W and the GNS 430W, the

COM power/volume knob controls unit

power and communications radio volume.

Press the knob momentarily to enable/disable

automatic squelch control.

In the GNS 430W, the VLOC volume knob

controls audio volume for the selected VOR/

Localizer frequency. Press momentarily to

enable/disable the ident tone.

In the GNC 420W and GNS 430W, the large

left knob is used to tune the megahertz

(MHz) value of the standby frequency for

the COM transceiver or the VLOC receiver,

whichever is currently selected by the tuning

cursor.

In the GNC 420W and GNS 430W, the small

left knob is used to tune the kilohertz (kHz)

value of the standby frequency for the COM

transceiver 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

windows.

In the GNC 420W and GNS 430W, 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).

In the GNS 430W, the VLOC flip-flop key

is used to swap the active and standby VLOC

frequencies (i.e., make the selected standby

frequency active).

KEYS AND KNOBS

COM power/

VLOC volume

Small left knob

190-00356-01 Rev F

volume

COM flip-flop

VLOC flip-flop

Large left knob