Garmin GNS 430W Quick Reference Guide - Page 5

KEYS AND KNOBS Left-hand Keys and Knobs k 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. j 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. y 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. v 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. W 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). V 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). COM power/ volume VLOC volume Small left knob 190-00356-01 Rev H COM flip-flop VLOC flip-flop Large left knob 3