Garmin 255A manual Monitoring the Standby Com Channel, Saving a Com Channel

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2.2.2Monitoring the Standby Com Channel

The Frequency Monitoring function allows you to monitor the Standby frequency for activity, while listening to the Active frequency.

Press the MON key in the Com function to listen to the standby frequency. A small “MN” will replace the “STB” to the left of the Standby frequency.

Monitor

Annunciation

Standby

Frequency Being

Monitored

Figure 2-2 Com Frequency Monitor Annunciation

When the Active frequency receives a signal, the unit will switch automatically to the Active frequency. The Active frequency quality is not affected. The Frequency Monitor function is turned off by pressing the MON key again. Monitoring is not canceled by switching to Nav mode.

2.2.3Saving a Com Channel

The current Standby frequency may be saved into the Com User Frequency database from the Com display or the Com User Function. The Com User Frequency database can hold up to 15 frequencies.

NOTE: When switching from 8.33 kHz to 25 kHz mode, any 8.33 kHz- specific user frequencies will be deleted from the user frequency list. This only affects the user frequencies within the 8.33 kHz spectrum.

1.Press ENT.The Standby frequency is selected and the Waypoint name field will be active.

2.Turn the SMALL knob to select characters.

3.Turn the LARGE knob to move the cursor.

Press the ENT Key to Save the Displayed Value

Press the CLR Key To Revert to the Previous Value

Number of

Frequencies Saved

Turn SMALL Knob

To Select Character

Turn LARGE Knob

To Move Cursor

Figure 2-3 Com User Frequency Name Selection

4. After selecting the desired characters, press ENT.

2-2

Garmin GNC 255A/255B Pilot’s Guide

190-01182-01 Rev. A

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Contents GNC 255A/255B November Limited Warranty 190-01182-01 Rev. a Iii Operation Product Registration and Support US Toll Free Canada Toll FreeRecord of Revisions Contents 2.1 2.22.3 Index Index-1 This page intentionally left blank Getting Started Product DescriptionPower/Com Volume/Squelch Knob Nav Volume/ID KnobPilot Controls 5 C/N Com/Nav Key Tuning LARGE/SMALL Concentric Cursor KnobsFLIP/FLOP Key OBS KeyUSB Port Func Function KeyMON Monitor Key Power On Com RadioSelecting a Com Frequency Monitoring the Standby Com Channel Saving a Com ChannelAfter selecting the desired characters, press ENT Description After making a selection, press ENTCom Database Look-Up Frequency Database Reverse Look-UpEmergency Channel Stuck MicRemote Frequency Selection Control Nav Radio Selecting a Nav FrequencySaving a Nav Channel Listening to the Nav Audio Channel 01-36OBS Mode 14 CDI DisplayDistance/Speed/Time DST Display 15 DST Data DisplayThis page intentionally left blank Functions Functions DescriptionCom Frequencies Recent Com FrequenciesTurn the Small knob to select an Entry Com User Frequencies Press the CLR key to delete this User frequencyEditing a Com User Frequency Frequencies. Press ENTCom Database Frequencies Com Database FrequenciesCom Nearest Airports APT Nearest APT function. Then, press ENTCom Nearest Area Control Center ACC Frequencies Turn Small Knob To Scroll Through Available FrequenciesCom Nearest Flight Service Station FSS Frequencies 13 Com Nearest FSS FrequenciesCom Nearest Weather WX Frequencies 14 Com Nearest Weather FrequenciesNav Frequencies Recent Nav FrequenciesNav User Frequencies Press the ENT key to delete the displayed frequencyEditing a Nav User Frequency Nav Database Frequencies 21 Nav Database FrequenciesWhen duplicate identifiers are found, press ENT Nav Nearest VORTurn the Small knob to display the available VORs ICS ConfigurationAdjust Intercom Functions displayAux Audio Turn the Small knob to turn the Aux Audio On or OffIntercom On/Off function. Then, press the ENT key Intercom On/OffSpeaker On/Off Speaker On/Off function. Then, press ENTSystem Configuration Com SpacingDisplay Brightness 34 Set Display BrightnessDisplay Contrast function. Then, press the ENT key Display ContrastDatabase Info Database Version function. Then, press the ENT keyLoad Database Load Database function. Then, press the ENT keySoftware Version function. Then, press the ENT key Software VersionSerial Number Press the Func key to return to the main menuTimers Setting Up the Count Down TimerTo select a starting timer value Pressing CLR and then ENT will reset the displayed Timer Setting Up the Count Up TimerViewing Timers in the Com Display Pressing ENT twice will stop the displayed Timer48 Count Down Timer Value Now Counting Up This page intentionally left blank Troubleshooting AppendixIf in Lock Out mode It can be enabledOr disabled via a Remote mounted Calibration error Recalibrate resolverUpdating the Frequency Database Messages Verify glideslope deviation Power has been Re-apply power to the unitSwitch has been Property withRemote com All installationsInstallations Been in pressedNav radio is Contact dealer for service Not communicatingProperty with System This page intentionally left blank Index Remote frequency control 2-5 Reverse look-up 2-4 Revisions