1TAKEOFF TOURThe GNS 530 is designed to make operation as simple as possible. The descriptions on the next threepages provide a general overview of the primary function(s) for each key and knob. This Takeoff Tour sectionis intended to provide a brief overview of the primary functions of your GNS 530. Experiment with the unitand refer to the reference sections for more information.Left-hand Keys and KnobsThe COM power/volume knob controls unit power and communications radio volume.Press momentarily to disable automatic squelch control.The VLOC volume knob controls audio volume for the selected VOR/ Localizer frequency.Press momentarily to enable/disable the ident tone.The large left knob (COM/VLOC) is used to tune the megahertz (MHz) value of thestandby frequency for the communications transceiver (COM) or the VOR/Localizer receiver,whichever is currently selected by the tuning cursor.The small left knob (PUSH C/V) is used to tune the kilohertz (kHz) value of the standbyfrequency for the communications transceiver (COM) or the VLOC receiver, whichever iscurrently selected by the tuning cursor. Press this knob momentarily to toggle the tuningcursor between the COM and VLOC frequency fields.The COM flip-flop key is used the swap the active and standby COM frequencies. Pressand hold to select emergency channel (121.500 MHz).The VLOC flip-flop key is used to swap the active and standby VLOC frequencies (i.e.,make the selected standby frequency active).The large and small left knobs allow you to tunethe desired COM or VLOC frequency.Key and Knob FunctionsVWjkvy