Garmin GMA 350H Pilot's Guide
Contents
1. MUSIC Toggles MUSIC input MUSIC mute Mutes MUSICon radio reception OR Voice Response Music mute Mute MUSIC enabled MUSIC pj Disable MUSIC We Disables MUSIC mute on radio MUSIC mute disable Peas reception Disable mute MUSIC EE Voice Response Music mute OR i disabled Mute MUSIC disable 24 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA 350H Audio Panel Example Phrase Adin Pilot Toggles PILOT button Copilot Toggles COPLT button Passenger OR kg Toggles PASS button Pass Mutes passengers during radio el reception Mute passenger A OR Voice Response Passenger mute enabled ICS Isolation Mute pass Disable passenger mute Disable pass mute m Kia seko Disables muting of passengers hara ano GN during radio reception Passenger mute disable Voice R mp E ET o assenger Mute passenger disable P OR Mute pass disable Configures Copilot as a Copilot is passenger OR passenger Copilot is pass Voice Response Copilot is Copilot passenger Configuration Configures Copilot as flight crew Voice Response Copilot is crew Copilot is crew 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 25 GMA 350H Audio Panel GARMI N Example Phrase Action Manual squelch OR Toggles manual squelch mode Man squelch 99 q Manual squelch threshold up Man squelch threshold up2. CLEARANCE RECORDER AND PLAYER The GMA 350H contains a digital clearance recorder that records up to 2 5 minutes of the selected COM radio signal Recorded COM audio is stored in separate memory blocks Once 2 5 minutes of recording time have been reached the recorder begins recording over the stored memory blocks starting from the oldest block An optional external Play button controls the play function Pressing the Play button once plays the latest recorded memory block The Play function can also be accessed via Voice Recognition commands Refer to the Voice Recognition section for more information Pressing the MKR MUTE Key during play of a memory block stops play If a COM signal is detected during play of a recorded memory block play is halted Pressing the Play button while audio is playing begins playing the previously recorded memory block Each subsequent press of the Play button selects the previously recorded memory block Powering off the unit automatically clears all recorded blocks Stops Play Marker Mute Key VOICE RECOGNITION Voice Recognition allows the pilot and optionally copilot to control the GMA 350H using spoken commands To activate Voice Recognition push and hold the Push to Command PTC button while speaking a command When the Push to Command button is released the GMA 350H will respond If a command is correctly interpreted by the GMA 350H a positive acknowledgement chime will be
3. Manual squelch volume up Manual OR Squelch Man squelch volume up Manual squelch threshold down Man squelch threshold down Decreases manual squelch Manual squelch voume down threshold OR Man squelch volume down NOTE Finer manual squelch adjustment may be made using the dual concentric knobs on the GMA 350 The voice command Up or Down is equivalent to three clicks of the inner knob Speaker SPKR P A Toggles PA on off Marker Marker Beacon MKR Mute marker OR nae ni Cea EN MUTE Marker mute page COM Play Clearance Read back OR Recorder Say again Cursor off Cursor Cursor cancel OR Cancel cursor Desired selection volume Increases volume of desired Volume selection Adjustments Desired selection volume Decreases volume of desired down selection Increases manual squelch threshold Speaker Toggles SPKR on off Same action as pressing PLAY refer to page 5 Cancels cursor when cursor is flashing 26 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Panel Example Phrase Action Volume Displays the current volume but Adjustments does not change it Desired selection Speaker pilot copilot passenger pass marker aux auxiliary telephone phone jack or music NOTE Finer volume adjustment may be made us
4. ala TG kaosu dadaas iaa adad sanat kadi napadi jadni Marker Beacon Receiver Intercom System ICS sicisssissscascssscdcisteiscassssacsiasascsnsteueansscrsacssats dinaja dana Copilot Configured as Crew or Passenger scssssssssssssssscsssssvsssesesssssssssesssssssssvseessee 10 Intercom MODES Intercom Volume and Squelch vea aan anna anana 15 SPEAKER nes E TAATA 17 BD Adi Onraita aiana A aAA AAAA 18 Clearance Recorder and Player us uessvesserssvsvvesveesversversvessvensversversvensersss rss 21 Voice Recognition sisseseade 21 Entertainment Inputs 0aa aaa naa aaa aaa nana 28 Telephone and Entertainment MUtINg aaeeaanaananao anna 28 Fail Safe Operation siccisicssscecssnccassenicccostscescecanersstcsoncencinenscccnstetdacecacercaccconseneanene 28 190 01134 14 Rev C Garmin GMA 350H Pilot s Guide A Table of Contents GARMIN Blank Page li Garmin GMA 350H Pilot s Guide 190 01134 14 Rev C GARMIN GMA 350H Audio Panel CONTROLS O OOOO OOO OG GARMIN GMA 350 GOOO O OO GO GOGO GMA 350H Controls GARMIN GMA 350 GMA 350H Traffic Controls NOTE When a key is selected a triangular annunciator above the key is illuminated MKR MUTE Selects marker beacon receiver audio Mutes the currently received marker beacon receiver audio Deactivates automatically and marker beacon audio is heard when the next marker beacon signal is received Also stops play of recorded COM a
5. played and the pilot should verify that the correct button selection is indicated by the triangular annunciator lights 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 21 GMA 350H Audio Panel GARMI N Alternatively some commands will be indicated by a voice response from the GMA 350H If the desired modes are not indicated by annunciator lights or a voice response the pilot should repeat the command by using the Push to Command button or by manually using the front panel controls of the GMA 350H If a command is incorrectly interpreted by the GMA 350H a negative acknowledgement tone will be played The pilot should repeat the command by using the Push to Command button or by manually using the front panel controls of the GMA 350H In the event of any abnormal Voice Recognition operation the front panel controls may be used to override Voice Recognition and manually control the GMA 350H The following table lists the available Voice Recognition commands the associated actions and the voice response if applicable 22 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D A GARMIN Example Phrase COM one MIC COM two MIC COM three MIC Split COM Split COM one two or Split one two Split COM one three or Split one three Split COM two three or Split two three Monitored COM mute OR Mute Monitored COM Disable monitored COM mute Monitored COM mute d
6. the cause may be aircraft wiring or headset settings Refer to the following table if a headset or aircraft wiring problem is suspected 3D Audio Troubleshooting Symptom s Solution s 3D audio 1 Mono headset in use 1 Use a stereo headset left message heard in both 2 Stereo headset in use 2 Set mono stereo switch on headset ears with mono stereo to stereo 3D audio switch set to mono right message 3 Aircraft wiring has 3 If after checking solutions 1 and not heard left audio wired to 2 see a service center as soon as both left and right possible to inspect correct wiring channels of stereo This wiring fault can cause fail safe headset jack audio not to function 3D audio 1 Mono headset in use 1 Use a stereo headset left message 2 Stereo headset in use 2 Set mono stereo switch on headset heard in both with mono stereo to stereo ears followed switch set to mono by 3D audio right message heard in both ears 3 Incorrect aircraft 3 If after checking solutions 1 and wiring left right 2 see a service center as soon as shorted together possible to inspect correct wiring This wiring fault can cause fail safe audio not to function 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 19 GMA 350H Audio Panel A GARMIN 3D Audio Troubleshooting 3D audio right message heard in both ears 3D audio left not heard 1 Incorrect aircraft wiring rig
7. 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA 350H Audio Panel Copitot amp PASSENGER ISoLATE MODE In Copilot amp Passenger Isolate mode the Pilot can hear the aircraft audio The Copilot has the option to use Split COM mode The Passengers hear each other Split COM Aircraft Audio Optional 1 I eee 200 ICS Keys Mode Operation INTERCOM VOLUME AND SQUELCH The VOL CRSR Knob controls selection and volume or manual squelch adjustment for audio sources that may not be adjustable anywhere else in the system The small knob controls the volume or squelch Turning the large knob activates and or moves the cursor flashing green annunciator or flashing blue annunciator in Blue Select Mode to select the audio source to adjust The cursor will time out after a few seconds and the position of the cursor will always default back to the PILOT Key Pressing the small knob cancels the cursor BLue SELECT MODE TELEPHONE ENTERTAINMENT DISTRIBUTION The music MUSIC and telephone entertainment 2 audio are distributed using the Blue Select Mode The following example indicates that the pilot copilot and passengers will all hear the telephone entertainment audio 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 15 GMA 350H Audio Panel GARMI N Blue Select Mode Telephone Entertainment Distribution The Blue Select Mode is entered by pressing the small knob when the volume control cursor flashing green annu
8. GMA 350H Pilot s Guide lt sv es v wa a M JA muse so Se v SPIR pror copu PASS at NE A GARMIN Copyright O 2011 2013 Garmin Ltd or its subsidiaries All rights reserved This manual reflects the operation of GMA 350H Audio Panel Some differences in operation may be observed when comparing the information in this manual to some installations as configuration changes can be made by the installer Garmin International Inc 1200 Fast 151st Street Olathe Kansas 66062 U S A Tel 913 397 8200 Fax 913 397 8282 Garmin AT Inc 2345 Turner Road SE Salem OR 97302 U S A Tel 503 391 3411 Fax 503 364 2138 Garmin Europe Ltd Liberty House Bulls Copse Road Hounsdown Business Park Southampton S040 9RB U K Tel 44 0870 8501241 Fax 44 0870 8501251 Garmin Corporation No 68 Jangshu 2nd Road Shijr Taipei County Taiwan Tel 886 02 2642 9199 Fax 886 02 2642 9099 Web Site Address www garmin com Except as expressly provided herein no part of this manual may be reproduced copied transmitted disseminated downloaded or stored in any storage medium for any purpose without the express written permission of Garmin Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed for personal use provided that such electronic or printed copy of this manual or revision must contain the
9. L SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHETHER RESULTING FROM THE USE MISUSE OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT Some states do not allow the exclusion of incidental or consequential damages so the above limitations may not apply to you Garmin retains the exclusive right to repair or replace the unit or software or to offer a full refund of the purchase price at its sole discretion SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY To obtain warranty service contact your local Garmin Authorized Service Center For assistance in locating a Service Center near you visit the Garmin Web site at http www garmin com or contact Garmin Customer Service at 800 800 1020 CAUTION Incorrect aircraft wiring could short the left channel or both channels to ground if a monaural headset is plugged into the stereo jacks If wired incorrectly fail safe operation will not work a GARMIN Table of Contents du e a m m e eo 1 Features and Operation ne ssesuesevsvesseesserseesvveseeesversversvessvensversvessvensersersnsser 5 POWEr UP aaa REMEBER EMERIK KAREEM RER ER Radan 5 Mono Stereo Headsets nc seevvevsvanvevversvvsvenvensessvenvensessvssvevvensvssvevvensessvenvensennner 5 I LETT m 6 Enabling Disabling Monitored COM Muting sssoesveverssssverssrrsvrrssrrsvrrsssrsvrrsssssvnnnenne 6 Split COM Mode Tr nsmit IND CATIONS Lana ea
10. Southampton S040 9RB U K Toll free within U K 0808 2380000 p 44 0870 8501241 f 44 0870 8501251 Garmin Corporation No 68 Jangshu 2nd Road Shijr Taipei County Taiwan p 886 2 2642 9199 f 886 2 2642 9099 www garmin com 2011 2013 Garmin Ltd or its subsidiaries 190 01134 14 Rev D
11. UX fa or MUSIC the Volume Control Knob adjusts the individual volume of the selected source Manual Squelch Annunciator Off for Relative Volume Automatic Squelch On for Manual Squelch sau Scale GARMIN GMA 350 Volume or Manual Squelch Cursor Volume Squelch Control SPEAKER All of the radios can be heard over the cabin speaker Pressing the SPKR Key selects and deselects the cabin speaker Speaker audio is muted when the PTT is pressed Certain aural alerts and warnings autopilot traffic altitude are always heard on the speaker even when the speaker is not selected Speaker Key 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 17 GMA 350H Audio Panel GARMI N PASSENGER DDRESS Mope PA Mone Press and hold the SPKR Key for 2 seconds to initiate Passenger Address Mode PA Mode is annunciated by a rapid blinking of the SPKR annunciator When in PA Mode the crew can use the PTT Push to Talk button to deliver announcements over the speaker to the passenger headsets or both depending on configuration SPLiT PA Mope During Split PA Mode the pilot can continue to use the radio s while the copilot delivers PA announcements To initiate Split PA Mode first enter Split COM Mode by pressing more that one MIC Keys simultaneously then press and hold the SPKR Key for 2 seconds 3D AUDIO 3D Audio is useful when multiple audio sources are present By using different responses in each ear 3D audio process
12. complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited Garmin amp is a registered trademark of Garmin Ltd or its subsidiaries These trademarks may not be used without the express permission of Garmin January 2013 190 01134 14 Rev D Printed in the U S A LIMITED WARRANTY This Garmin product is warranted to be free from defects in materials or workmanship for two years from the date of purchase Within this period Garmin will at its sole option repair or replace any components that fail in normal use Such repairs or replacement will be made at no charge to the customer for parts and labor provided that the customer shall be responsible for any transportation cost This warranty does not cover failures due to abuse misuse accident or unauthorized alterations or repairs In addition Garmin reserves the right to refuse warranty claims against products or services that are obtained and or used in contravention of the law of any country THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE STATUTORY OR OTHERWISE THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS WHICH MAY VARY FROM STATE TO STATE INNO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTA
13. eception of audio from the COM radio selected for transmission audio from the other COM radio s are muted ENABLING DISABLING MONITORED COM MUTING Press and hold COM1 COM2 or COM3 to enable disable monitored COM muting during reception of audio from the COM radio selected for transmission The aural message Mute Monitored COM on Primary COM Reception Enabled Disabled is heard SPLIT COM MODE NOTE Split COM performance is affected by the distance between the COM antennas and the separation of the tuned frequencies If the selected COM frequencies are too close together interference may be heard during transmission on the other radio During Split COM operation both the pilot and the copilot can transmit simultaneously over separate radios Pressing more than one MIC Keys simultaneously initiates Split COM Mode iee COMI COM2 COMI COM3 or COM2 COM3 The respective COMI MICI COM2 MIC2 or COM3 MIC3 annunciators are illuminated indicating Split COM operation Split COM operation is cancelled by pressing one of the selected MIC Keys again 6 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Panel When in Split COM mode the pilot is using the lower numbered COM the copilot is using the higher numbered COM COM2 Radio is Selected Selecting a COM Radio for Transmit TRANSMIT INDICATIONS During COM transmission the active transceiver MIC1 MIC2 or MIC3 Key Annunciator flashe
14. el 12 MICI Selects the 1 transmitter for transmitting COMI receive is simultaneously selected when this key is pressed allowing received audio from the 1 COM receiver to be heard COM2 or COM3 receive can be added by pressing the COM2 or COM3 Key Selection of a second MIC button initiates Split COM mode using COM1 COM2 or COM1 COM3 When in Split COM mode the pilot is using the lower numbered COM the copilot is using the higher numbered COM MIC2 Selects the 2 transmitter for transmitting COM2 receive is simultaneously selected when this key is pressed allowing received audio from the 2 COM receiver to be heard COM1 or COM3 receive can be added by pressing the COMI or COM3 Key Selection of a second MIC button initiates Split COM mode using COM1 COM2 or COM2 COM3 When in Split COM mode the pilot is using the lower numbered COM the copilot is using the higher numbered COM MIC3 Selects the 3 transmitter for transmitting COM3 receive is simultaneously selected when this key is pressed allowing received audio from the 3 COM receiver to be heard COM1 or COM2 receive can be added by pressing the COMI or COM2 Key Selection of a second MIC button initiates Split COM mode using COM1 COM3 or COM2 COM3 When in Split COM mode the pilot is using the lower numbered COM the copilot is using the higher numbered COM 15 NAV2 When selected audio from the 2 NAV receiver can be heard PILOT Controls the pilot in
15. ht channel used for mono instead of left or left right swapped 1 See a service center as soon as possible to inspect correct wiring This wiring fault can cause fail safe audio not to function Symptom s Solution s 3D audio left message heard in right ear only followed by 3D audio right message heard in left ear only 3D audio left message heard in left ear only no audio heard in right ear 3D audio right message heard in right ear only no audio heard in left ear 20 1 Stereo headset is on backwards Incorrect aircraft wiring left right channels swapped Aircraft wired for mono intercom Incorrect aircraft wiring right channel used for mono instead of left or left right swapped 1 Verify correct orientation from the left right indication on each side of the headset or the position of the boom mic usually attached on left side If the headset is backwards left right position information will be swapped See a service center as soon as possible to inspect correct wiring This wiring fault can cause fail safe audio not to function See a service center to wire the installation for stereo headsets See a service center as soon as possible to inspect correct wiring This wiring fault can cause fail safe audio not to function 3D Audio Troubleshooting Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA 350H Audio Panel
16. ing creates the illusion that each audio source is coming from a unique location or seat position Because this feature uses different signals for left and right channels it requires wiring for stereo intercom and stereo headsets If 3D audio is activated when mono headsets are in use the listener will still hear all audio sources however there is no benefit from location separation With a single COM selected and 3D Audio enabled the listener hears the audio source at the 12 o clock position If all three COMS are selected the listener hears the audio sources at the 11 12 and 1 o clock positions with the COM numbers increasing clockwise If two COMs are selected the listener hears COM1 at the 11 o clock position and COM2 at the 1 o clock position All other intercom positions are processed to sound like their relative seat location By default the GMA 350H assumes the pilot sits in the right seat A Garmin authorized service center can make changes to the default configuration 18 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Panel ENABLING 3D Aupio Press and hold the PILOT Key to toggle 3D audio processing on and off for all headset positions When 3D Audio is enabled the aural message 3D audio left is heard in the left ear followed by 3D audio right in the right ear 3D Aupio TROUBLESHOOTING If the aural messages are not heard in only the left and then the right ear respectively
17. ing the dual concentric knobs on the GMA 350 The voice command Up or Down is equivalent to three clicks of the inner knob Desired selection volume Distribute telephone to desired position s OR Distribute phone to desired Distributes TEL JACK to desired Distribution position s positions Blue Mode OR Distribute jack to desired position s Distribute music to desired Distributes MUSIC to desired position s position s Desired position s All none pilot copilot passenger pass or any combination of pilot copilot passenger or pass NOTE The word to may be omitted from distribution phrases Enables 3D audio refer to page 21 Voice Response Three D audio left three D audio right Enables standard audio disables 3D audio Voice Response Standard Audio Voice Recognition Commands Three D audio 3D Audio Standard audio 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 21 GMA 350H Audio Panel GARMI N ENTERTAINMENT INPUTS The GMA 350H provides two stereo telephone entertainment inputs The telephone entertainment 12 Key controls a telephone or entertainment device connected to the rear of the audio panel or to the Front Panel Jack The MUSIC Key controls the Entertainment Music audio input The Front Panel Jack can be used as an entertainment input or a telephone input i
18. io Frequency Audio Keying pe The GMA 350H provides three states of marker beacon operation On Muted and Deselected The MKR MUTE key annunciator indicates when marker beacon audio is selected Marker beacon audio is not heard when the annunciator is off or when the annunciator is on with the marker beacon audio muted TuRNING MARKER Beacon Aupio On With the MKR MUTE annunciator off press the MKR MUTE Key to enable marker beacon audio MurTiNG MARKER Beacon Aupio During marker beacon audio reception press the MKR MUTE Key to mute the audio The MKR MUTE annunciator remains lit but the current marker tone is silenced Audio muting deactivates automatically and marker beacon audio is heard when the next marker beacon signal is received DEsELECTING MARKER Beacon Aupio To deselect marker beacon audio press the MKR MUTE Key twice during marker beacon reception or once if a marker beacon signal is not detected Marker Beacon Key 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 9 GMA 350H Audio Panel GARMI N INTERCOM SYSTEM ICS NOTE Intercom functions may also be accessed via Voice Recognition commands Refer to the Voice Recognition section for more information The GMA 350H includes a six position intercom system ICS one MUSIC input and one telephone entertainment input for the pilot copilot and passengers The intercom provides Pilot Copilot and Passenger audio isolation Intercom Control
19. isable Disable mute monitored COM OR Mute monitored COM disable AUX OR Auxiliary 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide GMA 350H Audio Panel Action Selects MIC1 COM1 audio Selects MIC2 COM2 audio Selects MIC2 COM2 audio Selects MIC3 COM3 audio 1 Selects split COM 1 2 mode Selects split COM 1 3 mode Selects split COM2 3 mode Mutes monitored COM on primary COM reception refer to Page 8 Voice Response Monitor mute enabled Disables monitored COM mute on primary COM reception refer to Page 8 Voice Response Monitored mute disabled oggles AUX audio oggles NAV1 audio oggles NAV2 audio oggles NAV audio 23 GMA 350H Audio Panel GARMI N Example Phrase Action m Toggles TRFC audio GMA dodi Vet 350H Traffic only Telephone Phone OR Toggles MAES TEL JACK input Telephone mute Mute telephone Mutes TEL JACK on radio Phone mute reception Mute phone Vore R s a Sep mute ponse Tel and jack OR mute enabled Mute Jack Disable telephone mute Mute telephone disable Disable phone mute Mute phone disable Disable jack mute Disables TELIJACK mute on Mute jack disable radio reception Telephone mute disable a Disable mute telephone Voice Response Tel and jack Phone mute disable mae Disable mute phone Jack mute disable OR Disable mute jack
20. n which case it operates simultaneously with the rear telephone interface The Front Panel Jack is a 3 5 mm stereo jack that is compatible with popular portable entertainment devices such as MP3s CD players and cell phones The headphone outputs of the entertainment devices are plugged into the Front Panel Jack Distribution of the entertainment inputs are configured in Blue Select Mode TELEPHONE AND ENTERTAINMENT MUTING Telephone and entertainment muting can be enabled or disabled by the user however it is always muted during alerts ENABLING DISABLING MUTING Press and hold the MUSIC or 12 Key for two seconds to toggle muting on and off The aural message Mute Music on Reception Enabled Disabled or Mute Tel and Jack on Reception Enabled Disabled is heard FAIL SAFE OPERATION If there is a failure of the GMA 350H or when power is not applied a fail safe circuit connects the pilots headset and microphone directly to the COMI transceiver Audio is not available on the speaker during Fail safe operation 28 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D A GARMIN Garmin International Inc 1200 East 151st Street Olathe KS 66062 U S A Toll free 800 800 1020 or 866 739 5687 p 913 397 8200 f 913 397 8282 Garmin AT Inc 2345 Turner Road SE Salem OR 97302 U S A Toll free 800 525 6726 p 503 391 3411 f 503 364 2138 Garmin Europe Ltd Liberty House Bulls Copse Road Hounsdown Business Park
21. nciator is not active If the volume control cursor is active press the small knob twice The first press will cancel the volume control cursor the second will activate Blue Select Mode The annunciator over the amp Key will be flashing blue Any combination of the annunciators over the PILOT COPLT and PASS buttons may be blue Select the desired button to turn the blue annunciator on or off to distribute the telephone audio to selected crew passenger positions Turn the large knob to select MUSIC and select the crew positions to receive the music audio Selecting any key other than PILOT COPLT PASS MUSIC or will cancel Blue Select Mode Pressing the small knob will also cancel Blue Select Mode After approximately ten seconds with no input the Blue Select Mode will automatically cancel ADJUSTING INTERCOM VOLUME When the cursor is on PILOT COPLT or PASS the Volume Control Knob adjusts the intercom volume for the listener ADJUSTING MANUAL SQUELCH When the cursor is on MAN SQ the Volume Control Knob adjusts the ICS Squelch Threshold the volume level that must be exceeded to be heard over the intercom Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Panel DJUSTING SPEAKER VOLUME When the cursor is on SPKR the Volume Control Knob adjusts the speaker volume of the selected sources COM NAV AUX MKR Apuustinc MKR AUX En AND MUSIC Votume When the cursor is on MKR A
22. ngers also hear each other Aircraft Audio __ ICS Keys Mode Operation PAsSENGER CREW IsoLATE MODE In Passenger Crew Isolate mode the Pilot and Copilot hear the aircraft audio and each other The Passengers hear each other Aircraft Audio ICS Keys Mode Operation Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D A GARMIN GMA 350H Audio Panel Copitot IsoLATE MODE In Copilot Isolate mode the Pilot and Passengers hear the aircraft audio and each other The Copilot has the option to use Split COM mode Split COM Mode Optional Aircraft Audio VE ICS Keys Mode Operation ALL IsoLATE MoDE In All Isolate mode the Pilot hears the aircraft audio The Copilot has the option to use Split COM mode The Passengers hear each other Split COM Aircraft Audio Optional 4 eee 000 Mode Operation ICS Keys 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide GMA 350H Audio Panel GARMI N Pitot amp CoPiLoT IsoLaTE MODE In Pilot amp Copilot Isolate mode the Pilot and Passengers hear the aircraft audio The Copilot has the option to use Split COM mode Split COM Aircraft Audio Optional ICS Keys Mode Operation Pitot amp PASSENGER ISOLATE IMODE In Pilot amp Passenger Isolate mode the Pilot and Copilot hear the aircraft audio The Passengers hear each other Aircraft Audio ICS Keys Mode Operation 14 Garmin GMA
23. ring power up During the self test all Audio Panel annunciator lights illuminate for approximately two seconds Once the self test is completed most of the settings are restored to those in use before the unit was last turned off For the GMA 350H Traffic unit the TRFC audio is automatically enabled when the unit is powered up regardless of its state prior to the power cycle MONO STEREO HEADSETS Stereo headsets are recommended when using the GMA 350H Using a monaural headset in a stereo jack shorts the right headset channel output to ground While this does not damage the Audio Panel a person listening on a monaural headset hears only the left channel in both ears If a monaural headset is used at one of the passenger positions any other passenger using a stereo headset hears audio in the left ear only 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 5 GMA 350H Audio Panel GARMI N TRANSCEIVERS NOTE Transceiver functions may also be accessed via Voice Recognition commands Refer to the Voice Recognition section for more information Audio from the 1 2 or 3 COM receiver can be selected independently by pressing the respective Key s COM1 COM2 or COM3 Pressing MIC1 MIC2 or MIC3 selects the 1 2 or 3 transmitter and simultaneously selects the related COM receiver COM1 COM2 or COM3 allowing received audio to be heard The remaining COM receivers can be added by pressing their respective keys During r
24. s Press the PILOT COPLT and or PASS Keys to distribute as required If the annunciators are lit those positions will share intercom audio Ifan annunciator is NOT lit that position is isolated from the others COPILOT CONFIGURED AS CREW OR PASSENGER NOTE When the copilot position is configured as a passenger the COPLT Key is disabled and the copilot headset is treated as a passenger for intercom and entertainment audio distribution The copilot position can be configured as crew COPLT Key enabled or as a passenger COPLT Key disabled Pressing and holding the COPLT Key toggles the copilot position configuration between passenger and crew The aural message Copilot Configured as Passenger or Copilot Configured as Crew is heard 10 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Panel INTERCOM MODES A NOTE In the following modes the copilot position is configured as crew NOTE In the default ICS configuration only the pilot and copilot positions can hear aircraft alerts ALL INTERCOM MoDE In All Intercom mode the Pilot Copilot and Passengers hear each other and hear the aircraft audio Aircraft Audio ICS Keys Mode Operation 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 11 GMA 350H Audio Panel A GARMIN Pitot IsoLATE MODE In Pilot Isolate mode the Pilot Copilot and Passengers hear the aircraft audio The Copilot and Passe
25. s approximately once per second During Split COM transmission the MICI or MIC2 annunciator flashes when the pilots microphone PTT is pressed The MIC2 or MIC3 annunciator flashes when the copilot s microphone PTT is pressed Annunciato Flashes During Transmission COM Radio Transmit Indication 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 7 GMA 350H Audio Panel GARMI N RECEIVERS NOTE Receiver functions may also be accessed via Voice Recognition commands Refer to the Voice Recognition section for more information Pressing the NAVI and or NAV2 Key s selects deselects the receiver audio for the corresponding navigation radio source The selected audio source can be heard over the headset and the speaker if selected All radios can be selected individually or simultaneously Selecting a NAV Radio Receiver MARKER BEACON RECEIVER The marker beacon receiver detects any marker beacon signal within the reception range of the aircralt The GMA 350H has the ability to drive optional external marker lamps Marker beacon lamps operate independently of any audio selection and cannot be turned off The marker beacon signal sensitivity threshold can be set to High Low or User Selectable toggle switch required The receiver detects the three marker tones outer middle and inner Audio Frequency Audio Keying gn 8 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Panel Aud
26. tercom system Press and hold to toggle 3D audio on off for all headset positions 7 COPLT Controls the copilot intercom system Press and hold to toggle copilot configuration between crew and passenger PASS Controls the passenger intercom system Press and hold to enable disable passenger muting during reception 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 3 GD GMA 350H Audio Panel GARMI N SPKR Selects and deselects the cabin speaker COM NAV AUX and MKR receiver audio can be heard on the speaker Press and hold for 2 seconds for Passenger Address PA The SPKR key flashes during PA Cursor CRSR Control Knob Turn to move the cursor flashing green or blue annunciator to the desired source Volume VOL Control Knob Turn the smaller knob to control volume or squelch of the selected source indicated by the flashing green or blue annunciator When the volume control cursor is not active press to switch to Blue Select mode If the volume control cursor is active press twice once to cancel the cursor twice to activate Blue Select mode NAV GMA 350 H Traffic only When selected audio from the NAV receiver can be heard TRFC GMA 350 H Traffic only When selected audio from the traffic audio source can be heard This is usually the TIS Traffic audio other traffic alerts maybe heard on other alert inputs regardless of the state of this audio selection TRFC audio is enabled b
27. udio 190 01134 14 Rev D Garmin GMA 350H Pilot s Guide 1 GMA 350H Audio Panel GARMI N COMI When selected audio from the 1 COM receiver can be heard Press and hold to enable disable monitored COM muting during primary COM reception G COM2 When selected audio from the 2 COM receiver can be heard Press and hold to enable disable monitored COM muting during primary COM reception COM3 When selected audio from the 3 COM receiver can be heard Press and hold to enable disable monitored COM muting during primary COM reception G NAVI When selected audio from the 1 NAV receiver can be heard O AUX When selected audio from the AUX inputs can be heard amp Selects and deselects audio from a telephone or entertainment device connected to the Front Panel Jack Audio from a telephone device connected to the rear of the audio panel is used if a device is not connected to the Front Panel Jack Press and hold to enable disable 22 muting during reception MUSIC Selects and deselects music entertainment audio Press and hold to enable disable MUSIC muting during reception MAN SQ Manual Squelch annunciator When lit squelch is controlled manually Volume Indicator Indicates volume squelch setting relative to full scale 1 Front Panel Jack Used for an entertainment or telephone input 2 Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA350H Audio Pan
28. y default on each power cycle Garmin GMA 350H Pilot s Guide 190 01134 14 Rev D GARMIN GMA 350H Audio Panel FEATURES AND OPERATION The GMA 350H Audio Panel provides the traditional audio selector functions of microphone and receiver audio selection The Audio Panel includes an intercom system ICS a marker beacon receiver and a COM clearance recorder Ambient noise from the aircraft radios is reduced by Avionics Squelch ASQ When no audio is detected ASQ processing further reduces the amount of background noise The MAN SQ Key toggles between manual and automatic intercom system ICS squelch In automatic ICS squelch mode threshold adjustments are handled automatically by the system In manual ICS squelch mode individual threshold adjustments can be made for the pilot copilot and passenger microphones by the crew The ability to adjust individual thresholds for each ICS position further reduces the amount of background noise from the radios Pushbutton keys control audio selection When a key is selected a triangular annunciator above the key is illuminated Annunciator brightness is adjusted automatically by photocell dimming Key brightness is adjusted by the radio dimming bus control Three Aux inputs are available for additional avionics or audio devices During installation the unit may be configured in various ways depending on aircraft type and the needs of the pilot POWER UP The GMA 350H performs a self test du
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