Garmin 255A ICS Configuration, Adjust Intercom, Turn the Small knob to display the available VORs

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2. Turn the SMALL knob to display the available VORs.

3.Press the ENT key to accept the displayed VOR and set it as the Standby frequency. Or, press the CLR key to return to the

Functions display.

3.4ICS Configuration

The Internal Communications System (ICS) Configuration allows you to adjust the intercom, set the Nav/Aux volume, turn the Intercom On/Off, and turn the intercom speaker On/Off.

3.4.1Adjust 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 3-27 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

Turn LARGE And Then

SMALL Knob To Adjust

Intercom Volume

Press the ENT Key to Save the Displayed Value

Press the CLR Key To Revert to the Previous Value

Figure 3-28 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.

190-01182-01 Rev. A

Garmin GNC 255A/255B Pilot’s Guide

3-15

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Contents GNC 255A/255B November Limited Warranty 190-01182-01 Rev. a Iii Operation US Toll Free Canada Toll Free Product Registration and SupportRecord of Revisions Contents 2.3 2.12.2 Index Index-1 This page intentionally left blank Product Description Getting StartedPilot Controls Power/Com Volume/Squelch KnobNav Volume/ID Knob FLIP/FLOP Key Tuning LARGE/SMALL Concentric Cursor Knobs5 C/N Com/Nav Key OBS KeyMON Monitor Key USB PortFunc Function Key Selecting a Com Frequency Power OnCom Radio After selecting the desired characters, press ENT Monitoring the Standby Com ChannelSaving a Com Channel After making a selection, press ENT DescriptionFrequency Database Reverse Look-Up Com Database Look-UpRemote Frequency Selection Control Emergency ChannelStuck Mic Saving a Nav Channel Nav RadioSelecting a Nav Frequency 01-36 Listening to the Nav Audio Channel14 CDI Display OBS Mode15 DST Data Display Distance/Speed/Time DST DisplayThis page intentionally left blank Functions Description FunctionsTurn the Small knob to select an Entry Com FrequenciesRecent Com Frequencies Press the CLR key to delete this User frequency Com User FrequenciesFrequencies. Press ENT Editing a Com User FrequencyCom Database Frequencies Com Database FrequenciesNearest APT function. Then, press ENT Com Nearest Airports APTTurn Small Knob To Scroll Through Available Frequencies Com Nearest Area Control Center ACC Frequencies13 Com Nearest FSS Frequencies Com Nearest Flight Service Station FSS Frequencies14 Com Nearest Weather Frequencies Com Nearest Weather WX FrequenciesRecent Nav Frequencies Nav FrequenciesPress the ENT key to delete the displayed frequency Nav User FrequenciesEditing a Nav User Frequency 21 Nav Database Frequencies Nav Database FrequenciesNav Nearest VOR When duplicate identifiers are found, press ENTAdjust Intercom ICS ConfigurationTurn the Small knob to display the available VORs Functions displayTurn the Small knob to turn the Aux Audio On or Off Aux AudioSpeaker On/Off Intercom On/OffIntercom On/Off function. Then, press the ENT key Speaker On/Off function. Then, press ENTCom Spacing System Configuration34 Set Display Brightness Display BrightnessDatabase Info Display ContrastDisplay Contrast function. Then, press the ENT key Database Version function. Then, press the ENT keyLoad Database function. Then, press the ENT key Load DatabaseSerial Number Software VersionSoftware Version function. Then, press the ENT key Press the Func key to return to the main menuTo select a starting timer value TimersSetting Up the Count Down Timer Viewing Timers in the Com Display Setting Up the Count Up TimerPressing CLR and then ENT will reset the displayed Timer Pressing ENT twice will stop the displayed Timer48 Count Down Timer Value Now Counting Up This page intentionally left blank Appendix TroubleshootingOr disabled via a Remote mounted It can be enabledIf in Lock Out mode Calibration error Recalibrate resolverUpdating the Frequency Database Messages Switch has been Power has been Re-apply power to the unitVerify glideslope deviation Property withInstallations All installationsRemote com Been in pressedProperty with System Nav radio is Contact dealer for serviceNot communicating This page intentionally left blank Index Remote frequency control 2-5 Reverse look-up 2-4 Revisions