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3-13190-01182-01 Rev. A
Garmin GNC 255A/255B Pilot’s Guide
3.3.3 Nav Database Frequencies
The GNC 255 contains a large database of Nav frequencies that may be
recalled by identifier.
1. Press FUNC to access the Functions. With the Nav Frequency
Function highlighted, turn the SMALL knob to view the Nav
Database function. Then, press ENT.
2. Turn the LARGE knob to move the cursor to highlight a
character.
3. Turn the SMALL knob to select the desired character.
Turn LARGE Knob
To Move Cursor
Turn SMALL Knob
To Select Character
Press the ENT Key to Save
the Displayed Value
Press the CLR Key To Return
to the Previous Menu
Figure 3-21 Nav Database Frequencies
4. Repeat steps 2 and 3 to complete the desired identifier and
then press the ENT key.
5. If available, the Frequency Type will be highlighted. Turn the
SMALL knob to select the desired frequency.
Selected Identifier
Press FLIP/FLOP Key To Set
Selected Freq As Active
Selected Frequency
Wpt Type
Press ENT Key To Set
Selected Freq As Standby
Figure 3-22 Selected Nav Database Frequency
6. Press and release the FLIP/FLOP key to set the selected
frequency as the Active frequency.
7. Press the ENT key to set the selected frequency as the Standby
frequency.