Garmin GMA 240 Pilot's Guide - Page 11

GMA 240 Audio Panel GMA 240 PROGRAMMING OPTIONS Programming options include variable configurations that can be arranged by a Garmin authorized service center. Some options include a Pilot operable pushbutton or toggle switch or might be fixed configurations that are unchangeable. Configurations include the following: • COM Swap - A remote mounted pushbutton is used to transfer the active microphone between COM1 MIC and COM2 MIC. • COM muting on transmit - Audio on the other selected radios is muted while the active transceiver is transmitting. • Deactivate MASQTM (master avionics squelch). Enables/disables master squelch. The threshold level of MASQTM is also adjustable. • Internal Sidetone - Enables/disables internal sidetone for radios that do not provide sidetone during transmission. This can be selected independently for COM1, COM2, and TEL. • Crew Isolation - ICS isolation for the crew in place of Pilot isolation. • PILOT ISO Music - Enable music audio to be heard by the Pilot during PILOT ISO mode. • Button Press Tone - Enable beep tone annunciation of button presses. • Alert Music Mute - Disable music interruption by alert audio. Default operation is recommended. • Jack TEL detect - Phone detection is bypassed. Audio panel assumes a telephone is plugged into the jack whenever the TEL Key is selected. • Music mute by primary COM only - When RADIO Key is selected, music is muted only when active COM is receiving audio. • Enable Keyed ICS - Intercom MIC audio heard only when the corresponding ICS Key for the MIC position is pressed. • Individual volume controls - The volume can be adjusted individually for each alert input, the rear connector pin TEL audio input, and the front accessory jack TEL audio input. 190-00917-00 Rev. A Garmin GMA 240 Pilot's Guide 11