Power Up; Select Active And Standby Frequencies - Garmin GNC 250 Pilot’s Quick Reference Manual

POWER UP

Insert data card in card slot.
B clockwise to turn the unit on and adjust volume. The
Rotate the power/volume knob
welcome page will appear while the unit performs a self test.
E to confirm the database prompt.
Press
Satellite acquisition will begin and the unit will display a 'Ready for Navigation' message once
a position fix has been calculated.
M
To view messages, press the

SELECT ACTIVE AND STANDBY FREQUENCIES

C to activate the cursor in the standby frequency field.
Press
O and K to dial in the desired active frequency.
Rotate
@ to place the selected frequency in the active field.
Press
O and K to dial in the desired standby frequency.
Rotate
key.