Garmin GTR 225 GTR 255/255A/255B Pilot’s Guide - Page 27
ICS Configuration - intercom
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3.3 ICS Configuration The Internal Communications System (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 set values for the Intercom squelch and volume. The Intercom On/Off function must be set to On to make the Adjust Intercom function available. 1. Press FUNC to access the Functions. Turn the LARGE knob to select the ICS Function. Turn the SMALL knob to view the Adjust Intercom function. Then, press the ENT key. Figure 3-15 Select the Adjust Intercom Function 2. Turn the SMALL knob to set the ICS Squelch value. Then, press the ENT key. Turn Small Knob To Adjust Intercom Squelch Press the ENT Key to Save Press the CLR Key To Revert the Displayed Value to the Previous Value Turn LARGE And Then SMALL Knob To Adjust Intercom Volume Figure 3-16 Adjust the Intercom Values 3. Turn the LARGE knob to select the ICS Squelch or Volume. Turn the SMALL knob to set the value. Then, press the ENT key to save the selected values. 190-01182-00 Rev. A Garmin GTR 225/225A/225B Pilot's Guide 3-9