Garmin GNS 480TM GPS Receiver User Manual


 
3
Getting Started
Flip/Flop
Press the FLIP/FLOP button to switch between the active (left-most) and standby (right-
most) frequency. Switching between Com frequencies is disabled while you are transmit-
ting.
Com
Press COM to select the Com radio mode. The annunciator will light above the button
when you are in Com mode. Press COM a second time to monitor the Standby frequency. See
the Advanced Operation section for more about monitoring frequencies.
NAV
Press NAV to select the Nav radio mode. The annunciator above the button will light
when you are in Nav mode. Press NAV a second time to monitor the Standby frequency. See
the Advanced Operation section for more about monitoring frequencies.
SYS
Press SYS to reach the System mode. The annunciator above the button will light when
you are in the System mode.
OBS
Press OBS to see the current OBS setting and graphic CDI. If the annunciator above the
OBS button lights, you may use the LARGE and SMALL knobs to change the displayed
OBS values.
If your system is configured with an external CDI/HSI, the OBS radial of your remote
display will be decoded and displayed on the screen of the SL30.