GTR 255/255A/255B Pilot’s Guide
Page 8
... 3-6 3.2.6 Com Nearest Flight Service Station (FSS) Frequencies 3-7 3.2.7 Com Nearest Weather (WX) Frequencies 3-8 3.3 ICS Configuration 3-9 3.3.1 Adjust Intercom 3-9 3.3.2 Aux Audio 3-10 3.3.3 Intercom On/Off 3-11 3.3.4 Speaker On/Off 3-11 3.4 System Configuration 3-12 3.4.1 Com Spacing 3-12 3.4.2 Display Brightness 3-13 3.4.3 Display Contrast... 4-1 4.2 Updating the Frequency Database 4-3 4.2.1 Downloading the Frequency Database 4-3 4.2.2 Updating the GTR 225 Frequency Database 4-3 4.3 Messages 4-4 Index...Index-1 vi Garmin GTR 225/225A/225B Pilot's Guide 190-01182-00 Rev.
... 3-6 3.2.6 Com Nearest Flight Service Station (FSS) Frequencies 3-7 3.2.7 Com Nearest Weather (WX) Frequencies 3-8 3.3 ICS Configuration 3-9 3.3.1 Adjust Intercom 3-9 3.3.2 Aux Audio 3-10 3.3.3 Intercom On/Off 3-11 3.3.4 Speaker On/Off 3-11 3.4 System Configuration 3-12 3.4.1 Com Spacing 3-12 3.4.2 Display Brightness 3-13 3.4.3 Display Contrast... 4-1 4.2 Updating the Frequency Database 4-3 4.2.1 Downloading the Frequency Database 4-3 4.2.2 Updating the GTR 225 Frequency Database 4-3 4.3 Messages 4-4 Index...Index-1 vi Garmin GTR 225/225A/225B Pilot's Guide 190-01182-00 Rev.
GTR 255/255A/255B Pilot’s Guide
Page 9
...33 kHz steps is provided with the GTR 225A (10 watt) and GTR 225B (16 watt). The GTR 225 (10 watt) Com radio operates in 25 kHz steps (default). A Garmin GTR 225/225A/225B Pilot's Guide 1-1 1 GETTING STARTED 1.1 Product Description The GTR 225 Com Radio series provides a powerful VHF...Knobs (Frequency Adjust) Enter Key Clear Data Key Function Selection Press To Select Intercom Function Figure 1-1 GTR 225 Front Panel Description 190-01182-00 Rev. Besides traditional Com features, the GTR 225 series also incorporates workload-reducing functions such as most-used frequency storage in a...
...33 kHz steps is provided with the GTR 225A (10 watt) and GTR 225B (16 watt). The GTR 225 (10 watt) Com radio operates in 25 kHz steps (default). A Garmin GTR 225/225A/225B Pilot's Guide 1-1 1 GETTING STARTED 1.1 Product Description The GTR 225 Com Radio series provides a powerful VHF...Knobs (Frequency Adjust) Enter Key Clear Data Key Function Selection Press To Select Intercom Function Figure 1-1 GTR 225 Front Panel Description 190-01182-00 Rev. Besides traditional Com features, the GTR 225 series also incorporates workload-reducing functions such as most-used frequency storage in a...
GTR 255/255A/255B Pilot’s Guide
Page 11
A Garmin GTR 225/225A/225B Pilot's Guide 1-3 Switching between Com frequencies is disabled while you are used for Intercom On/Off, AUX Audio, or the Intercom settings. 1.2.7 CLR (Clear) Key Pressing the CLR key erases information, cancels entries, and resets timers. 1.2.8 ENT (Enter) Key Press the ENT key to save the ...
A Garmin GTR 225/225A/225B Pilot's Guide 1-3 Switching between Com frequencies is disabled while you are used for Intercom On/Off, AUX Audio, or the Intercom settings. 1.2.7 CLR (Clear) Key Pressing the CLR key erases information, cancels entries, and resets timers. 1.2.8 ENT (Enter) Key Press the ENT key to save the ...
GTR 255/255A/255B Pilot’s Guide
Page 27
... (ICS) Configuration allows you to adjust the intercom, set the Aux Audio, turn the Intercom On/Off, and turn the speaker On/Off. 3.3.1 Adjust Intercom The Adjust Intercom function allows you to view the Adjust Intercom function. Turn the SMALL knob to set values for the Intercom squelch and volume. A Garmin GTR 225/225A/225B Pilot's Guide 3-9 Then, press...
... (ICS) Configuration allows you to adjust the intercom, set the Aux Audio, turn the Intercom On/Off, and turn the speaker On/Off. 3.3.1 Adjust Intercom The Adjust Intercom function allows you to view the Adjust Intercom function. Turn the SMALL knob to set values for the Intercom squelch and volume. A Garmin GTR 225/225A/225B Pilot's Guide 3-9 Then, press...
GTR 255/255A/255B Pilot’s Guide
Page 29
... the SMALL knob to set to On to save the selected value. 190-01182-00 Rev. Press FUNC to access the Functions. The intercom can also be set the Intercom On or Off. Turn the LARGE knob to select the Speaker On/Off function. Then, press the ENT key to make the... the SMALL knob to save the selected value. 3.3.4 Speaker On/Off The Speaker On/Off function toggles the speaker output on /off . Then, press ENT. A Garmin GTR 225/225A/225B Pilot's Guide 3-11 3.3.3 Intercom On/Off The Intercom On/Off function toggles intercom on and off with a remote switch, if installed.
... the SMALL knob to set to On to save the selected value. 190-01182-00 Rev. Press FUNC to access the Functions. The intercom can also be set the Intercom On or Off. Turn the LARGE knob to select the Speaker On/Off function. Then, press the ENT key to make the... the SMALL knob to save the selected value. 3.3.4 Speaker On/Off The Speaker On/Off function toggles the speaker output on /off . Then, press ENT. A Garmin GTR 225/225A/225B Pilot's Guide 3-11 3.3.3 Intercom On/Off The Intercom On/Off function toggles intercom on and off with a remote switch, if installed.
GTR 255/255A/255B Pilot’s Guide
Page 40
...dealer. Contact factory Table 4-1 Troubleshooting 4-2 Garmin GTR 225/225A/225B Pilot's Guide 190-01182-00 Rev. No voice activation, or if must talk too loud Com Radio not communicating. Problem GTR 225 does not power on GTR 225 does not transmit Intercom doesn't function Can't change active frequency Display... shows "Com Radio Needs Service" at start-up Possible Cause No power to the GTR 225 Faulty electrical wiring or connection No...
...dealer. Contact factory Table 4-1 Troubleshooting 4-2 Garmin GTR 225/225A/225B Pilot's Guide 190-01182-00 Rev. No voice activation, or if must talk too loud Com Radio not communicating. Problem GTR 225 does not power on GTR 225 does not transmit Intercom doesn't function Can't change active frequency Display... shows "Com Radio Needs Service" at start-up Possible Cause No power to the GTR 225 Faulty electrical wiring or connection No...
GTR 255/255A/255B Pilot’s Guide
Page 45
A Garmin GTR 225/225A/225B Pilot's Guide Index-1 INDEX A Appendix 4-1 Aux Audio 3-10 B Basic operation 2-1 Brightness 3-13 C Cautions ii Clear 1-3 Com ...Database frequencies 3-5, 4-3 Database look-up 2-4 Display brightness 3-13 E Emergency channel 2-4 Enter 1-3 F Flight Service Station 3-7 FLIP/FLOP key 1-3 fly.garmin iv, 3-16, 4-1, 4-3 Frequency monitoring 2-2 Front panel description 1-1 FSS 3-7 Functions 1-4, 3-1 G Getting started 1-1 I ICS 3-9 Intercom 3-11 K Knobs 1-3 L Locking screw 1-1 M Menus 1-3 Message 4-4 Monitoring 1-4, 2-2 N Nearest airport 3-6 P Pilot controls 1-2 Power on ...
A Garmin GTR 225/225A/225B Pilot's Guide Index-1 INDEX A Appendix 4-1 Aux Audio 3-10 B Basic operation 2-1 Brightness 3-13 C Cautions ii Clear 1-3 Com ...Database frequencies 3-5, 4-3 Database look-up 2-4 Display brightness 3-13 E Emergency channel 2-4 Enter 1-3 F Flight Service Station 3-7 FLIP/FLOP key 1-3 fly.garmin iv, 3-16, 4-1, 4-3 Frequency monitoring 2-2 Front panel description 1-1 FSS 3-7 Functions 1-4, 3-1 G Getting started 1-1 I ICS 3-9 Intercom 3-11 K Knobs 1-3 L Locking screw 1-1 M Menus 1-3 Message 4-4 Monitoring 1-4, 2-2 N Nearest airport 3-6 P Pilot controls 1-2 Power on ...