Garmin GNC 250 GPS Receiver User Manual


 
TO SELECT COMM FREQUENCIES:
Press
C
repeatedly to highlight the standby field (e.g., “<121.75>”).
Rotate
O
to select the desired megahertz (to the left of the decimal).
Rotate
K
to select the desired kilohertz (to the right of the decimal).
Press
C
twice to remove the cursor from the comm and GPS windows.
TO EXCHANGE ACTIVE AND STANDBY FREQUENCIES:
Press the
@
button.
TO ADJUST THE AUDIO VOLUME:
Rotate the
B
power/volume knob.
TO OVERRIDE THE AUTOMATIC SQUELCH:
Press the
Q
squelch key. Press
Q
again to return to automatic squelch.
COMMUNICATION
250 Quick Ref 7/14/98 9:14 AM Page 7