User manual GARMIN GMA 347

[. . . ] GMA 347 audio panel pilot's guide WARRANTY 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 Copilot mode, the Copilot is isolated, while the Pilot and Passengers share the intercom. Mono/Stereo Headsets The unit can accommodate up to six (6) headsets (pilot, copilot and up to four (4) passengers). NOTE: The use of stereo headsets is highly recommended. However, if monaural headsets are plugged into stereo jacks the unit will not be damaged. 190-00325-00 Rev. A Garmin GMA 347 Pilot's Guide 5 Description In Crew Isolation mode, the Pilot and Copilot can communicate with each other while the passengers are able to communicate only with each other. In All mode, there is no isolation and every occupant can communicate with every other occupant. The passengers cannot transmit over the active COM radio, even if equipped with a PTT key. The unit may be configured with preset volume levels for MUSIC 1, MUSIC 2, UNSWITCHED 1, UNSWITCHED 2, UNSWITCHED 3 and ALTITUDE WARNING. Contact a Garminauthorized service center for volume level adjustment. COM MUTING The COM muting on receive and COM muting on transmit options are enabled in the Configuration mode. COM Muting on Receive The COM Muting on Receive option mutes all secondary COM audio when a primary COM signal is detected. When the COM muting on receive option is enabled, only the primary COM radio audio is recorded by the digital clearance recorder. COM Muting on Transmit The COM Muting on Transmit option mutes all secondary COM audio while the primary COM radio is transmitting. UNMUTED/UNSWITCHED INPUTS The unit provides four (4) unmuted/unswitched inputs that are always present on the headsets or speakers. These inputs are as follows: · ALTITUDE WARNING · UNSWITCHED 1 · UNSWITCHED 2 · UNSWITCHED 3 6 Garmin GMA 347 Pilot's Guide 190-00325-00 Rev. A Description Telephone The GMA 347 provides a 2-way telephone interface. See the ICS Isolation Modes & Telephone Distribution table in the operation section of this manual. Telephone communication is much like using the intercom, allowing both parties to talk at once. Contact a Garmin-authorized service center for details. Only the pilot and copilot hear MUSIC 1. MUSIC 1 and MUSIC 2 characteristics are affected by the active intercom mode. MUSIC 1 is always soft-muted when an interruption occurs from an aircraft radio. Soft muting is the gradual return of MUSIC 1 to its original volume level. When the MKR/MUTE key is pressed and held for two seconds, the pilot hears two beeps to indicate that MUSIC 1 muting by COM has been disabled. Pressing and holding the MKR/MUTE key again for two seconds sends one beep to the pilot to indicate COM muting is restored. Contact a Garmin-authorized service center to configure MUSIC 1 muting by the ICS. Auxiliary Entertainment Inputs The GMA 347 provides two stereo entertainment inputs; MUSIC 1 and MUSIC 2. Two 3. 5 mm stereo phone jacks should be installed in a convenient location for this purpose. [. . . ] Pressing the key again while audio is heard will mute the marker audio until the next beacon is received. Once the MKR/MUTE key is pressed, when a marker beacon tone is received, pressing the MKR/MUTE key during the tone SmartMutes the audio. That is, the audio turns off and returns when the next marker signal is received. 190-00325-00 Rev. A The marker beacon signal sensitivity threshold can be set in Configuration mode. [. . . ]