3-6Garmin GNC 255A/255B Pilot’s Guide 190-01182-01 Rev. A3.2.4 Com Nearest Airports (APT)The GNC 255 will report the 25 nearest Airports (APT), when interfacedwith an appropriate GPS receiver.Turn SMALL KnobTo Scroll ThroughAvailable AirportsFigure 3-11 Com Nearest APT Frequencies1. Press FUNC to access the Functions. With the Com FrequencyFunction highlighted, turn the SMALL knob to view the ComNearest APT function. Then, press ENT.2. Turn the SMALL knob to display the available airports. Pressthe ENT key to select the displayed airport. The frequency typewill be highlighted. Turn the SMALL knob to select the desiredfrequency type.3. Then, press the ENT key to set the displayed airport frequencyas the Standby or press and release the FLIP/FLOP key to setit as the Active frequency. Or, press the CLR key to return tothe Functions display.
