xGTN 650: TUNING COM AND NAV FREQUENCIES
When connected to a compatible Garmin transponder, the GTN can enter codes and change transponder
modes from the touch screen or knobs. is is true even if the compatible transponder has its own physical
buttons.
Set a transponder code
1. TOUCH the transponder code shown below the frequency windows.
2. On the transponder keypad, TOUCH the numerals in sequence of the
transponder code, or TOUCH VFR to enter 1200.
3. TOUCH Enter to make the new code active.
Transponder modes are available using the buttons on the transponder keypad screen. Available modes
may vary with your specic equipment. Most compatible transponders automatically turn on when the aircra
reaches a certain GPS-derived speed, so manually changing these modes is rarely necessary.
Check the status screens on startup
1. When the GTN powers up, TOUCH the Garmin logo screen.
2. When the Currently Installed Soware and Currently Installed Databases screen appears, conrm the
information and then TOUCH Continue.
3. When the Instrument Panel Self-Test screen appears, conrm the proper operation of the CDI and ags
on the external CDI connected to the GTN.
4. If your GTN is not connected to external fuel sensors, you can enter the current fuel on board and spec-
ify a fuel ow for ight planning.
When you nish checking the startup status screens, TOUCH Continue to return to the Home page.
Check the system status after startup
1. If the Home page is not displayed, PRESS the
HOME
button.
2. On the Home page, scroll down and TOUCH System.
3. On the System page, TOUCH System Status.
On the System Status page, you can nd the current
databases by touching Active and the next databases by
touching Standby. To review all the databases, TOUCH
the Up and Down controls at the bottom-right of the Sys-
tem Status page.
Check the GPS status
1. If the Home page is not displayed, PRESS the
HOME
button.
2. On the Home page, scroll down and TOUCH System.
3. On the System page, TOUCH GPS Status.
TIP
Transponder numerals can
be entered with the Large
and Small concentric knobs
when the transponder key-
pad is visible.