Garmin 225 Manuale Utente

4-3

190-01182-00  Rev. A

Garmin GTR 225/225A/225B Pilot’s Guide

The GTR 225 uses a standard USB memory device to load the frequency 

database into the GTR 225. The memory device is not provided by Garmin. The 
Frequency database is stored internally and the USB memory device is only used 
to transfer the database into the unit. 

The Garmin databases can be updated by following the instructions on 

https://fly.garmin.com/fly-garmin. 

The following equipment is required to perform the update: 

• Windows-compatible PC computer (Windows 2000, XP, Vista, or Windows

7 recommended)

• USB 2.0 compatible USB flash drive
• External USB cable
• Updated database obtained from the Garmin web site

 

NOTE:  The data contained in the frequency database comes from 
government agencies. Garmin accurately processes and cross-validates the 
data, but cannot guarantee the accuracy and completeness of the data. 

The Frequency database is updated on a 28-day cycle. Frequency database 

updates are provided by Garmin and may be downloaded from the Garmin web 
site https://fly.garmin.com/fly-garmin. 

See Section 3.4.5 for details on updating the database.