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Garmin GTR 225 GTR 255/255A/255B Pilot’s Guide - Page 21

Com User Frequencies

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3.2.2 Com User Frequencies Fifteen Com User Frequencies can be saved with an assigned waypoint (WPT) identifier and Type. NOTE: When switching from 8.33 kHz to 25 kHz mode, any 8.33 kHzspecific user frequencies will be deleted from the user frequency list. This only affects the user frequencies within the 8.33 kHz spectrum. 3.2.2.1 Viewing the Com User Frequency 1. Press FUNC to access the Functions. Turn the LARGE knob to select the Com Frequency Function. Selected Frequency Select Wpt Name Select Wpt Type Figure 3-3 Viewing User Com Frequencies 2. Turn the SMALL knob to view the Com User frequency function. Then, press ENT. Turn the SMALL knob to view the User Frequencies. 3.2.2.2 3. Press and release the FLIP/FLOP key to set the displayed frequency as the Active frequency. 4. Press the ENT key to set the displayed frequency as the Standby frequency. Deleting the Com User Frequency 1. Press the CLR key to delete this User frequency. Press ENT Key To Delete Selected Freq Active Frequency Press ENT To Confirm Deleting The Selected Freq Selected Frequency Figure 3-4 Deleting User Com Frequencies Position In List. Turn SMALL Knob To Select Entry. 190-01182-00 Rev. A Garmin GTR 225/225A/225B Pilot's Guide 3-3

Section	Page
Product Registration and Support	6
1 Getting Started	9
1.1 Product Description	9
1.2 Pilot Controls	10
1.2.1 Power/Com Volume/Squelch Knob	10
1.2.2 Tuning LARGE/SMALL Concentric (Cursor) Knobs	11
1.2.3 FLIP/FLOP Key	11
1.2.4 Com Key	11
1.2.5 MEM Key	11
1.2.6 ICS Key	11
1.2.7 CLR (Clear) Key	11
1.2.8 ENT (Enter) Key	11
1.2.9 FUNC (Function) Key	12
1.2.10 MON (Monitor) Key	12
1.3 USB Port	12
2 Basic Operation	13
2.1 Power On	13
2.2 Com Radio	13
2.2.1 Selecting a Com Frequency	13
2.2.2 Monitoring the Standby Com Channel	14
2.2.3 Saving a Com Channel	14
2.2.4 Com Database Look-Up	16
2.2.5 Emergency Channel	16
2.2.6 Stuck Mic	17
2.2.7 Frequency Database Reverse Look-Up	17
2.2.8 Remote Frequency Selection Control	17
3 Functions	19
3.1 Functions Description	19
3.2 Com Frequencies	20
3.2.1 Recent Com Frequencies	20
3.2.2 Com User Frequencies	21
3.2.2.1 Viewing the Com User Frequency	21
3.2.2.2 Deleting the Com User Frequency	21
3.2.2.3 Editing a Com User Frequency	22
3.2.3 Com Database Frequencies	23
3.2.4 Com Nearest Airports (APT)	24
3.2.5 Com Nearest Area Control Center (ACC) Frequencies	24
3.2.6 Com Nearest Flight Service Station (FSS) Frequencies	25
3.2.7 Com Nearest Weather (WX) Frequencies	26
3.3 ICS Configuration	27
3.3.1 Adjust Intercom	27
3.3.2 Aux Audio	28
3.3.3 Intercom On/Off	29
3.3.4 Speaker On/Off	29
3.4 System Configuration	30
3.4.1 Com Spacing	30
3.4.2 Display Brightness	31
3.4.3 Display Contrast	32
3.4.4 Database Info	32
3.4.5 Load Database	33
3.4.6 Software Version	34
3.4.7 Serial Number	34
3.5 Timers	35
3.5.1 Setting Up the Count Down Timer	35
3.5.2 Setting Up the Count Up Timer	36
3.5.3 Viewing Timers in the Com Display	36
4 Appendix	39
4.1 Troubleshooting	39
4.2 Updating the Frequency Database	41
4.2.1 Downloading the Frequency Database	41
4.2.2 Updating the GTR 225 Frequency Database	41
4.3 Messages	42