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7

PILOT mode

isolates the pilot from everyone else and dedicates the aircraft radios to the

pilot exclusively.  The copilot and passengers share communication between themselves but
cannot communicate with the pilot or hear the aircraft radios.

CREW mode

places the pilot and copilot on a common ICS communication channel.

The passengers are on their own intercom channel and can communicate with each other, but
cannot communicate with the crew or hear the aircraft radios.

ALL mode

allows full intercom communication between everyone plugged in to the GMA

340.  Aircraft radios are heard by all.

MUSIC 1 and MUSIC 2

 stereo entertainment inputs are affected by the intercom mode

selected.

The following table summarizes the ICS operation for the different modes supported by the

GMA 340:

MUSIC 1 is normally muted during ICS activity.  However an installation option is available to disable

ICS MUTE.  Then muting of MUSIC 1 will not occur due to ICS activity.  A panel mounted switch may be
installed for this function.  The MUSIC 1 mute trip level is adjustable by the installing agency.

Mono/Stereo Headset

The use of stereo headsets is highly recommended.

If monaural headsets are plugged into stereo jacks that do not have a switch

installed, the unit will not be damaged.
If the pilot uses a monaural headset in a stereo jack, no audio will be heard

during failsafe operation.  When using a monaural headset the pilot’s jack must

be equipped with a stereo/mono switch and it must be set to the ‘mono’ position

for proper failsafe operation.

A person listening on a monaural headset will hear only the left channel from the GMA 340 in both ears.  If

a monaural headset is used at one of the passenger positions, any other passenger listening on a stereo headset
will hear audio in their left ear only, unless their headset has a stereo/mono switch and it is set for mono.

PILOT HEARS

COPILOT HEARS

PASSENGER

HEARS

MUSIC 1 MUTING

TRIGGERED BY

Selected Radios.
Pilot.

Copilot.

Passengers.

MUSIC  1.

Passengers.

Copilot.

MUSIC  1.

Copilot or passenger

ICS activity.

Selected Radios.

Pilot.

Copilot.

MUSIC  1.

Selected Radios.

Copilot. Pilot.

MUSIC  1.

Passengers.

MUSIC  2.

(MUSIC 1 in Dual

ADF)

Aircraft radio activity.

MKR activity.

Pilot or Copilot ICS

activity.

Selected Radios.

Pilot.

Copilot.

Passengers.

MUSIC  1.

Selected Radios.

Pilot.

Copilot.

Passengers.

MUSIC  1.

Selected Radios.

Pilot.

Copilot.

Passengers.

MUSIC  1.

Aircraft radio activity.

MKR activity.

ICS activity.

MODE

ALL
LED's
OFF)

CREW
(LED
LIT)

PILOT
(LED
LIT)

Содержание GMA 340

Страница 1: ...1 Audio Panel pilot s guide GMA 340...

Страница 2: ...2 Front Panel Controls GMA 340 Front Panel Controls GMA 340 Dual ADF Front Panel Controls GMA 340H...

Страница 3: ...Level 7 CopilotandPassengerICSVolumeControl PulloutforPassengerVolume 8 CopilotandPassengerVOXIntercomSquelchLevel 9 CrewIsolationIntercomModeButton 10 PilotIsolationIntercomModeButton 11 PassengerAdd...

Страница 4: ...htransceiverhas beenselectedformicrophoneuse Whenamicrophoneiskeyed theactivetransceiver sMICbuttonLEDblinksapproximatelyonceper secondtoindicatethattheradioistransmitting Split COM Not Available on D...

Страница 5: ...allingagency PA Function ThePAmodeisactivatedbypressingthePAbutton 11 Then wheneitherthepilot sorcopilot s microphoneiskeyed thecorrespondingmicaudioisheardoverthecabinspeaker IftheSPKRbuttonis alsoac...

Страница 6: ...achofthesixmicrophoneinputshavededicatedVOXcircuitsensuringthatonlytheactive microphone s is areheardwhensquelchisbroken Thisrepresentsavastimprovementovertheparty linesystemsandreducestheamountofback...

Страница 7: ...headsets are plugged into stereo jacks that do not have a switch installed the unit will not be damaged If the pilot uses a monaural headset in a stereo jack no audio will be heard during failsafe op...

Страница 8: ...sedonILSapproacheswhilehighsensitivityallowsoperationoverairway markersortogetanearlierindicationofnearingtheoutermarkerduringanapproach ThemarkeraudioisselectedinitiallybypressingtheMKR mutebutton 2...

Страница 9: ...SPECIFICLEGALRIGHTS WHICHMAYVARYFROM STATETOSTATE INNOEVENTSHALLGARMINBELIABLEFORANYINCIDENTAL SPECIAL INDIRECTOR CONSEQUENTIALDAMAGES WHETHERRESULTINGFROMTHEUSE MISUSEORINABILITYTO USETHISPRODUCTORFR...

Страница 10: ...10...

Страница 11: ...11 GMA 340 GMA 340 Dual ADF GMA 340H...

Страница 12: ...Inc 1200East151st Street Olathe Kansas 66062 U S A GARMIN Europe Ltd Unit5 TheQuadrangle AbbeyParkIndustrialEstate Romsey SO519AQ U K GARMINCorporation No 68 Jangshu2nd Road Shijr TaipeiCounty Taiwan...

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