Garmin GMA 350 User Manual

GMA 350
pilot’s guide
Copyright © 2011 Garmin Ltd. or its subsidiaries. All rights reserved.
This manual reflects the operation of GMA 350 units with mod level 0 or later. Some differences in operation may be observed when comparing the information in this manual to earlier or later Mod status levels.
Garmin International, Inc., 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. Tel: 913/397.8200 Fax: 913/397.8282
Garmin (Europe) Ltd, Liberty House, Bulls Copse Road, Hounsdown Business Park, Southampton, SO40 9RB, U.K. Tel: 44/0870.8501241 Fax: 44/0870.8501251
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 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® is a registered trademark of Garmin Ltd. or its subsidiaries. These trademarks may not be used without the express permission of Garmin.
September, 2011 190-01134-12 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.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, 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.
GMA 350 Audio Panel
CONTROLS
1
NOTE:
8642 3 5 7 9
14 15 1712 1311 19
GMA 350 Controls
1816
When a key is selected, a triangular annunciator above the key is
10
20
illuminated.
1
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 audio.
2
COM1
– When selected, audio from the #1 COM receiver can be heard. Press and hold to enable/disable monitored COM muting during primary COM reception.
21
3
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.
4
4
NAV1
5
NAV2
– When selected, audio from the #1 NAV receiver can be heard.
– When selected, audio from the #2 NAV receiver can be heard.
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GMA 350 Audio Panel
6
– Selects and deselects audio from a telephone or entertainment device connected to the Front Panel Jack. Audio from a telephone 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
muting during reception.
7
MUS1
– Selects and deselects music entertainment audio. Press and
hold to enable/disable MUS1 muting during reception.
8
MUS2
– Selects and deselects music entertainment audio. Press and
hold to enable/disable MUS2 muting during reception.
9
MAN SQ – Manual Squelch annunciator. When lit, squelch is controlled manually.
10
Volume Indicator
– Indicates volume/squelch setting relative to full
scale.
11
Front Panel Jack
– Used for an entertainment or telephone input.
12
MIC1
is simultaneously selected when this key is pressed allowing received audio from the #1 COM receiver to be heard. COM2 receive can be added by pressing the COM2 Key. Selection of a second MIC button initiates Split-COM mode. When in Split-COM mode, the pilot is using COM1, the copilot is using the COM2.
13
MIC2
is simultaneously selected when this key is pressed allowing received audio from the #2 COM receiver to be heard. COM1 receive can be added by pressing the COM1 Key. Selection of a second MIC button initiates Split-COM mode. When in Split-COM mode, the pilot is using COM1, the copilot is using the COM2.
14
PLAY
while audio is playing begins playing the previously recorded memory block. Each subsequent press thereafter plays the previous block of memory.
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– Selects the #1 transmitter for transmitting. COM1 receive
– Selects the #2 transmitter for transmitting. COM2 receive
– Press once to play the latest recorded memory block. Press
Garmin GMA 350 Pilot’s Guide
5
GMA 350 Audio Panel
15
AUX
– When selected, audio from the AUX inputs can be heard.
16
PILOT
– Controls the pilot intercom system. Press and hold to toggle
3D Audio on/off for all headset positions.
17
COPLT
– Controls the copilot intercom system. Press and hold to
toggle copilot configuration between crew and passenger.
18
PASS
– Controls the passenger intercom system. Press and hold to
enable/disable passenger muting during reception.
19
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.
20
Cursor (CRSR) Control Knob
– Turn to move the cursor (flashing
white or blue annunciator) to the desired source.
21
Volume (VOL) Control Knob
– Turn the smaller knob to control volume or squelch of the selected source (indicated by the flashing white 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 Blue­Select mode).
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Garmin GMA 350 Pilot’s Guide
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GMA 350 Audio Panel
FEATURES AND OPERATION
The GMA 350 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.
Upon installation, the unit may be configured in various ways depending on aircraft type and the needs of the pilot.
POWER-UP
The GMA 350 performs a self-test during power-up. During the self­test 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.
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Garmin GMA 350 Pilot’s Guide
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GMA 350 Audio Panel
MONO/STEREO HEADSETS
Stereo headsets are recommended when using the GMA 350. 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.
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 or #2 COM receiver can be selected independently by
pressing the respective Key(s) (COM1 or COM2).
Pressing MIC1 or MIC2 selects the #1 or #2 transmitter and simultaneously
selects the related COM receiver (COM1 or COM2) allowing received audio to be heard. The other COM receiver can be added by pressing the respective key. During reception of audio from the COM radio selected for transmission, audio from the other COM radio is muted.
ENABLING/DISABLING MONITORED COM MUTING
Press and hold COM1 or COM2 to enable/disable monitored COM muting during reception of audio from the COM radio selected for transmission. The aural message “Monitor Mute Enabled/Disabled” is heard.
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Garmin GMA 350 Pilot’s Guide
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SPLIT-COM MODE
GMA 350 Audio Panel
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 both MIC Keys simultaneously initiates Split-COM Mode
(i.e., COM1/COM2). The respective COM1/MIC1 or COM2/MIC2 annunciators are illuminated indicating Split-COM operation. Split-COM operation is cancelled by pressing one of the selected MIC Keys again.
In Split-COM mode, the pilot is uses COM1 and the copilot is uses
COM2.
COM2 Radio is Selected
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Selecting a COM Radio for Transmit
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GMA 350 Audio Panel
TRANSMIT INDICATIONS
During COM transmission, the active transceiver (MIC1 or MIC2) Key
Annunciator flashes approximately once per second.
During Split-COM transmission, the MIC1 annunciator flashes when the pilot’s microphone PTT is pressed. The MIC2 annunciator flashes when the copilot’s microphone PTT is pressed.
Annunciator
Flashes During
Transmission
COM Radio Transmit Indication
RECEIVERS
NOTE:
Receiver functions may also be accessed via Voice Recognition
commands. Refer to the Voice Recognition section for more information.
Pressing the NAV1 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
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Garmin GMA 350 Pilot’s Guide
190-01134-12 Rev. D
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