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Garmin GNC 255A/255B Pilot’s Guide
190-01182-01 Rev. A
2.2.4 Com Database Look-Up
1. Press the CURSOR knob from the Com display to activate the
database look-up function.
Identifier Field Active
for Selection
Turn LARGE Knob
To Move Cursor
Turn SMALL Knob
To Select Character
Figure 2-5 Database Identifier Active for Selection
2. Turn the SMALL knob to select characters and turn the LARGE
knob to move the cursor.
Selected Identifier
Figure 2-6 Database Identifier Selection
3. After selecting the desired characters, press ENT. Turn the
SMALL knob to scroll through the list of waypoint types.
Waypoint Types with a “+” sign will have more frequencies
for the same type. After selection, the selected waypoint and
type will be remembered for 30 minutes.
Turn the SMALL Knob To
Select Frequency Type
Figure 2-7 Database Waypoint Type Selection
4. Press ENT to copy the frequency into the Standby frequency
location. Press and release the FLIP/FLOP key to swap the
Active and Standby frequencies.
2.2.5 Frequency Database Reverse Look-Up
The identifier and frequency type will be shown for Com and Nav frequencies
that are in the database when the unit is receiving a valid position input.
Waypoint Types with a “+” sign will have more frequencies for the same type.
Airport Identifier Shown
For Freqs In Database
Figure 2-8 Frequency Database Reverse Look-Up