Garmin GNC 255 Pilot's Manual

Also see for GNC 255: Installation manual

Contents

Garmin GNC 255 Pilot's Manual Manual pdf 15 page image

1-3190-01182-01 Rev. A Garmin GNC 255A/255B Pilot’s Guide1.2.3 Tuning LARGE/SMALL Concentric (Cursor)KnobsThe LARGE right and SMALL right knobs are used for tuningfrequencies and data entry.SMALL, Inner KnobLARGE, Outer Knob1.2.4 FLIP/FLOP KeyPress and release the FLIP/FLOP key to switch between theactive (left-most) and standby (right-most) frequency. Switchingbetween Com frequencies is disabled while you are transmitting.1.2.5 C/N (Com/Nav) KeyPress the C/N key to select the Com or Nav (VLOC) radiomode.1.2.6 OBS KeyPress the OBS key to see the current OBS setting and graphicCDI. The OBS page will be disabled if the unit is installed withan external converter.1.2.7 T/F (To/From) KeyPress the T/F key to toggle between the bearing TO or radialFROM the active VOR. The T/F page also shows Distance/Speed/Time information. The T/F key does not operate for Localizerfrequencies.1.2.8 CLR (Clear) KeyPressing the CLR key erases information, cancels entries, andresets timers.1.2.9 ENT (Enter) KeyPress the ENT key to save selected values, to confirm a prompt,or to save the Standby frequency.