251 - COM190-00357-00 Rev GAuto-Tuning / Nearest Apt PageTo select a COM frequency:1. If the tuning cursor is not currently in the COMwindow, press the small left knob momen-tarily.2. Turn the large left knob to select the desiredmegahertz (MHz) value. For example, the“118” portion of the frequency “118.300”.3. Turn the small left knob to select the desiredkilohertz (kHz) value. For example, the “.300”portion of the frequency “118.300”.To make the standby frequency the active fre-quency, press the COM flip-flop key.The tuning cursor remains in the COM window. Ifyou wish to select a VOR/localizer/ILS frequency, pressthe small left knob momentarily to place the cursor inthe VLOC window. Additional instructions for VOR/localizer/ILS operations are available in Sections 5 and 8.Cursor in VLOC window allows for VOR andILS operations.Auto-TuningThe GNS 530W’s auto-tune feature allowsyou to quickly select any database frequency inthe GPS window as your standby frequency. AnyCOM frequency displayed in the GPS windowcan be transferred to the standby COM frequencyfield, with a minimum of keystrokes required. Thefollowing are some examples of selecting COMfrequencies from some of the main GPS pages.To select a COM frequency for a nearby airport:1. Select the Nearest Airport Page from the NRSTpage group. (See Section 7, or press and holdCLR, then turn the large right knob until thenearest pages appear. Finally, if necessary, turnthe small right knob to display the NearestAirport Page.)Nearest Airport Page with common trafficadvisory frequency (CTAF) for the closestairport highlighted.2. Press the small right knob momentarily toplace the cursor on the airport identifier field ofthe first airport in the list. If you wish to selectanother airport, turn the large right knob tohighlight the desired airport.3. The Nearest Airport Page displays the commontraffic advisory frequency (CTAF) for each listedairport. To select this frequency, turn the largeright knob to highlight the desired airport’sCTAF frequency and press ENT to place thefrequency in the standby field of the COMwindow.GNS 530W only
