User manual GARMIN G1000 NON-AIRFRAMESPECIFIC AUDIOPANEL PILOTS GUIDE-02

[. . . ] The intercom provides four selectable modes of isolation (All, Crew, Pilot, Copilot). MASQ (Master Avionics Squelch) processing reduces ambient noise from the avionics inputs. Manual squelch is available by pressing the MAN SQ key. 190-00378-02 Rev. A Garmin G1000 Audio Panel Pilot's Guide 6A-1 DESCRIPTION 6A. 2 UNIT DESCRIPTION The GMA 1347 features three (3) major groups of keys as shown in Figure 6A. 2. 1: · Communication keys · Navigation keys · Intercom system (ICS) keys Each key is labeled to indicate the name of the function. [. . . ] Refer to Table 6A. 3. 1 for a summary of the marker beacon signal characteristics. When the MKR/MUTE key is selected, the annunciator light illuminates and the audio signal can be heard over the speaker or headsets during marker reception. Marker Beacon Signal Sensitivity The HI SENS key can be pressed for increased marker beacon signal sensitivity. The HI SENS function is used to receive an earlier indication of nearing a marker during an approach. Figure 6A. 3. 2 Marker Beacon 190-00378-02 Rev. A Garmin G1000 Audio Panel Pilot's Guide 6A-7 OPERATION Beacon Outer Marker Middle Marker Airway/Inner Marker Audio Frequency 400 Hz 1, 300 Hz 3, 000 Hz Audio Keying ------ ·--·-- ···· Rate 2 dashes per second 95 dot-dash combinations per minute 6 dots per second Lamp Color Blue Amber White Table 6A. 3. 1 Marker Beacon Signal Characteristics Inner Marker Middle Marker Outer Marker Figure 6A. 3. 3 Marker Beacon Signal Indicator Lights on the PFD 6A-8 Garmin G1000 Audio Panel Pilot's Guide 190-00378-02 Rev. A OPERATION NAVIGATION RADIOS Pressing DME, ADF, AUX, NAV1, or NAV2 selects and deselects the radio source and activates the annunciator. All radio keys can be selected individually or together. MUSIC 1 MUSIC 1 can be heard by the pilot in COPILOT mode and in ALL mode, and can be heard by the copilot in PILOT mode and in ALL mode. In PILOT mode, the pilot can hear the selected radios, the copilot can hear MUSIC 1, the passengers can hear MUSIC 2, and the copilot and passengers can communicate with each other. ALL Mode ALL mode is selected when the PILOT and the COPLT keys are not annunciated. In ALL mode, everyone hears the selected radios and is able to communicate with everyone else. In this mode, both the pilot and copilot can hear MUSIC 1, while the passengers hear MUSIC 2. COPILOT Mode COPILOT mode is selected when only the COPLT key is annunciated. The pilot and passengers can hear the selected radios and communicate with each other. In this mode, the pilot can hear MUSIC 1, while the passengers can hear MUSIC 2. Input PILOT Key Press COPLT Key Press PILOT ALL CREW Current ICS Isolation State COPILOT CREW CREW COPILOT ALL PILOT ALL PILOT COPILOT Table 6A. 3. 2 ICS Isolation Mode Transitions 6A-10 Garmin G1000 Audio Panel Pilot's Guide 190-00378-02 Rev. A OPERATION Mode PILOT LED OFF COPLT LED OFF TEL LED OFF Pilot Hears Selected radios; pilot; copilot; passengers; MUSIC 1 Selected radios; pilot; copilot; passengers; MUSIC 1; TEL audio Selected radios; pilot Copilot Hears Selected radios; pilot; copilot; passengers; MUSIC 1 Selected radios; pilot; copilot; passengers; MUSIC 1; TEL audio Copilot; passengers; MUSIC 1; TEL audio Copilot; passengers; MUSIC 1 Copilot; TEL audio ALL OFF OFF ON ON PILOT ON OFF OFF Passenger Hears Selected radios; pilot; copilot; passengers; MUSIC 2 Selected radios; pilot; copilot; passengers; MUSIC 2; TEL audio Copilot; passengers; MUSIC 2; TEL audio Copilot; passengers; MUSIC 2 Selected radios; pilot; passengers; MUSIC 2 Selected radios; pilot; passengers; MUSIC 2; TEL audio Passengers; MUSIC 2; TEL audio Passengers; MUSIC 2 Input to Phone None Pilot; copilot; passengers Copilot; passengers OFF ON Selected radios; pilot; TEL audio Selected radios; pilot; passengers; MUSIC 1 Selected radios; pilot; passengers; MUSIC 1; TEL audio Selected radios; pilot; copilot Selected radios; pilot; copilot; TEL audio Pilot OFF COPILOT OFF ON OFF Copilot ON ON Copilot Pilot; passengers ON CREW ON ON OFF Selected radios; pilot; copilot Selected radios; pilot; copilot; TEL audio Passengers ON ON Pilot; copilot Table 6A. 3. 3 ICS Isolation Modes & Telephone Distribution 190-00378-02 Rev. A Garmin G1000 Audio Panel Pilot's Guide 6A-11 OPERATION VOLUME/SQUELCH CONTROL When the GMA 1347 MAN SQ key is selected, pressing the VOL/SQ knob toggles between volume and squelch adjustment. When the unit is in volume adjustment mode, the VOL annunciation on the lower left of the VOL/SQ knob is lit and volume can be adjusted. When the unit is in squelch mode, the SQ annunciation on the lower right of the VOL/SQ knob is lit and squelch threshold level can be adjusted. NOTE: When the MAN SQ key is not selected (auto-squelch is active), pressing the VOL/SQ knob has no effect on the VOL/SQ selection state and VOL is automatically annunciated. When transitioning from auto to manual squelch, the unit returns to the previous VOL/SQ selection (see table below). NOTE: The volume and squelch controls for the COM and NAV radios are located on the PFD and MFD bezels (refer to the VHF NAV/COM Pilot's Guide for details). Intercom VOL/SQ Intercom Volume Control Intercom volume can be controlled with the VOL/SQ knob. When MAN SQ is off (key not annunciated) volume adjustment is automatically selected and the VOL annunciation is lit. Current VOL/SQ State Manual, VOL selected Manual, SQ selected Figure 6A. 3. 6 Volume/Squelch Control Input Previous State: Manual, VOL selected MAN SQ Key Press Previous State: Manual, SQ selected GMA 1347 VOL/SQ Knob Press Auto, VOL selected Manual, VOL selected Auto, VOL selected Manual, SQ selected Auto, VOL selected Manual, SQ selected Auto, VOL selected Manual, VOL selected Table 6A. 3. 5 Transitioning from Auto to Manual Squelch Mode 6A-12 Garmin G1000 Audio Panel Pilot's Guide 190-00378-02 Rev. A OPERATION To adjust ICS volume when MAN SQ is OFF (key not annunciated): 1. To adjust ICS volume when MAN SQ is ON (key annunciated), do one of the following: 1a. If the unit is in manual squelch threshold adjustment mode (SQ annunciation at the lower right of the VOL/SQ knob is lit), press the VOL/SQ knob to toggle to ICS volume adjustment mode, and turn the appropriate VOL/SQ knob. If the unit is already in ICS volume adjustment mode (VOL annunciation at at the lower left of the VOL/SQ knob is lit), turn the appropriate VOL/SQ knob. To adjust squelch threshold level manually when MAN SQ is OFF (key not annunciated): 1. [. . . ] Both the pilot and the copilot can transmit at the same time from either the pilot side unit or copilot side unit. 190-00378-02 Rev. A Garmin G1000 Audio Panel Pilot's Guide 6A-15 OPERATION If transmit-interlock is not activated, all the selected receivers are heard at all times. Without transmit-interlock, during simultaneous transmission, interference may be heard on the COM receivers. Transmission by one radio produces static or squeal, resulting in loss of communication on other radios. [. . . ]