Usb Port - Garmin GTR 225 Pilot's Manual

The outer right and inner right knobs are used for tuning frequencies and data
entry.
To switch between the active (left-most) and standby (right-most)
frequency press and release the FLIP/FLOP key. Switching between
COM frequencies is disabled when transmitting.
To return to the COM radio mode press the COM key.
To recall and toggle between the COM Recent and User Frequency
lists press the MEM key.
To toggle display of the ICS settings for Intercom On/Off, AUX
Audio, or the Intercom settings press the ICS key.
To erase information, cancel entries, and reset timers press the CLR
key.
To save selected values, to confirm a prompt, or to save the standby
frequency press the ENT key.
The FUNC (Function) key accesses function categories for the
COM Radio, ICS Configuration, System Configuration, and Timer.
Pressing the FUNC key once displays the Function mode. Pressing
the FUNC key a second time exits the Function mode.
The MON (Monitor) key engages the monitor function. The standby
frequency can be monitored while still listening to the active
frequency.

1.3 USB Port

The USB port is used to update the frequency database in the GTR 225.
NOTE: For updating the databases, Garmin recommends the use of a USB
2.0 compatible flash drive. The flash drive must be formatted as FAT32.
190-01182-00 Rev. B
Outer Knob
Garmin GTR 225/225A/225B Pilot's Guide
Inner Knob
1-3