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10 SPKR – Selects and deselects the on-side flight deck speaker. COM and NAV receiver audio will be heard on the speaker.
11 MKR/MUTE – Selects marker beacon receiver audio. Mutes the currently received marker beacon receiver audio. Unmutes automatically when new marker beacon audio is received.
12 HI SENS – Press to increase marker beacon receiver sensitivity. Press again to return to low sensitivity.
13 DME – Turns DME audio on or off.
14 NAV1 – When selected, audio from the #1 NAV receiver can be heard.
15 ADF – Turns optional ADF receiver audio on or off.
16 NAV2 – When selected, audio from the #2 NAV receiver can be heard.
17 AUX – Not used in the Cessna Citation Mustang.
18 REC – Press to enable the recording of up to 2.5 minutes of COM receiver audio. When no audio is being received, nothing is recorded. Press again to stop recording.
19 PLAY – Press once to play the last recorded COM audio. Press again to stop playing. Press twice within 0.5 second while audio is playing and the previous block of recorded audio will be played. Each subsequent two presses within 0.5 second plays each previously recorded block.
20 INTR COM – Selects and deselects the pilot/copilot intercom on both Audio Panels.
21 MAN SQ – Enables manual squelch for the intercom. When the intercom is active, press the ICS Knob to illuminate SQ. Turn the ICS Knob to adjust squelch.
22 ICS Knob – Turn to adjust intercom volume or squelch. Press to switch between volume and squelch control as indicated by illumination of VOL or SQ. The MAN SQ Key must be selected to allow squelch adjustment.
23 MSTR Knob – The Master Volume Control adjusts volume for the blended NAV, COM, intercom audio, and alert warnings.
24 DISPLAY BACKUP Button – Manually selects Reversionary Mode.
98 Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 190-00494-02 Rev. B
Audio Panel and CNS
SYSTEM
OVERVIEW
FLIGHT
AUDIO PANEL EICAS INSTRUMENTS
& CNS
FLIGHT
MANAGEMENT
HAZARD
ADDITIONAL AFCS AVOIDANCE
INDEX APPENDICES FEATURES
4.2 COM Operationperation
COM Transceiver Selection and Activationctivationctivation NOTE: During PA Mode, the COM MIC Annunciator is extinguished and the COM active frequency color changes to white, indicating that neither COM transmitter is active. NOTE: When turning on the G1000 for use, the system remembers the last frequencies used and the active COM transceiver state prior to shutdown.
The COM Frequency Box is composed of four fields; the two active frequencies are on the left side and the two standby frequencies are on the right. The COM transceiver is selected for transmitting by pressing the COM MIC Keys on the Audio Panel.
An active COM frequency displayed in green indicates that the COM transceiver is selected on the Audio Panel (COM1 MIC or COM2 MIC Key). Both active COM frequencies appearing in white indicate that no COM radio is selected for transmitting (PA Key is selected on the Audio Panel). Frequencies in the standby fields are also displayed in white.
Active FieldsStandby FieldsTuning BoxCOM2 Radio is Selected on the Audio PanelFigure 4-3 Selecting a COM Radio for TransmitTop Section of the Audio Panel
COM3 is reserved for the optional HF radio. The active HF frequency is not shown on the G1000.
190-00494-02 Rev. B Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang 99
Audio Panel and CNS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS EICAS AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE AFCS ADDITIONAL
FEATURES APPENDICES INDEX
Transmit/Receive Indicationsndications
During COM transmission, a white TX appears by the active COM frequency replacing the Frequency Transfer Arrow. On the Audio Panel, when the active COM is transmitting, the active transceiver COM MIC Key Annunciator flashes approximately once per second.
During COM signal reception, a white RX appears by the active COM frequency replacing the Frequency Transfer Arrow.
Annunciator Flashes During TransmissionTransmit IndicationFigure 4-4 COM Radio Transmit and Receive Indications
When the same COM radio is selected on both Audio Panels, the pilot has transmit priority on COM1, the copilot has transmit priority on COM2.
COM Transceiver Manualanual Tuning
The COM frequency controls and frequency boxes are on the right side of each PFD.
Manually tuning a COM frequency:
1) Turn the COM Knob to tune the desired frequency in the COM Tuning Box (large knob for MHz; small knob for kHz).
2) Press the Frequency Transfer Key to transfer the frequency to the active field.
3) Adjust the volume level with the COM VOL/SQ Knob.
4) Press the COM VOL/SQ Knob to turn automatic squelch on and off.
Press the Frequency Transfer Key to Transfer COM Frequencies Between Active and Standby Frequency BoxesTurn the VOL/SQ Knob to adjust volume. Press the Knob to Turn Automatic Squelch On or OffFigure 4-5 COM Frequency TuningTurn the COM Knob to Tune the Frequency in the Tuning Box
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Cessna Citation Mustang G1000 Integrated Flight Dec(43)
