v190-01182-00 Rev. B
Garmin GTR 225/225A/225B Pilot’s Guide
Contents
Product Registration and Support .....................................................................iv
1 Getting Started ....................................................................................1-1
1.1 Product Description ..............................................................................1-1
1.2 Pilot Controls .......................................................................................1-2
1.3 USB Port ..............................................................................................1-3
2 COM RADIO Basic Operation ...............................................................2-1
2.1 Selecting a COM Frequency ..................................................................2-1
2.2 Monitoring the Standby COM Channel ................................................. 2-2
2.3 Saving a COM Channel ........................................................................ 2-2
2.4 COM Database Look-Up ......................................................................2-4
2.5 Emergency Channel .............................................................................2-5
2.6 Stuck Mic ............................................................................................2-5
2.7 Frequency Database Reverse Look-Up ..................................................2-5
2.8 Remote Frequency Selection Control .....................................................2-6
3 Functions ..............................................................................................3-1
3.1 Functions .............................................................................................3-1
3.2 COM Frequencies .................................................................................3-2
3.2.1 Recent COM Frequencies ............................................................3-2
3.2.2 COM User Frequencies ...............................................................3-2
3.2.3 COM Database Frequencies ........................................................3-4
3.2.4 COM Nearest Airports (APT) .......................................................3-5
3.2.5 COM Nearest Area Control Center (ACC) Frequencies ................. 3-5
3.2.6 COM Nearest Flight Service Station (FSS) Frequencies..................3-6
3.2.7 COM Nearest Weather (WX) Frequencies .................................... 3-6
3.3 ICS Configuration ................................................................................ 3-7
3.3.1 Adjust Intercom ..........................................................................3-7
3.3.2 AUX Audio .................................................................................3-8
3.3.3 Intercom On/Off .........................................................................3-8
3.3.4 Speaker On/Off ...........................................................................3-9
3.4 System Configuration ......................................................................... 3-10
3.4.1 COM Spacing ........................................................................... 3-10
3.4.2 COM Sidetone (Software v2.10 or later) .................................... 3-11
3.4.3 Display Brightness .................................................................... 3-12
3.4.4 Display Contrast ....................................................................... 3-12
3.4.5 Database Info...........................................................................3-13