About the PILOT button

   
         
   

Pilot audio isolation from the other headsets

   
         
    Pressing the PILOT button isolates the pilot audio. The pilot only hears radio and ADF audio.    
   

Other 3 headsets can talk together but not to the pilot. PAX cannot hear radio audio.

   
         
    This mode is helpful in class C Airspace when passengers need to talk among themselves    
         
    Refer to the GMA 340 Audio Panel pilots guide for further details of this mode    
         
    Deselecting both the CREW and PILOT buttons (With a second press) allows all headsets to talk to each other and hear all selected radios