About the COM1/2 button

    
         
   

VHF Comm - Icom A200 - both units

    
         
    Pressing the COM1/2 button selects the Com 1 transmitter and receiver for the pilot    
   

and the Com 2 transmitter and receiver for the copilot

    
         
    Refer to the GMA 340 Audio Panel pilots guide for further details of this mode    
         
    Use of this mode for normal operations will not be required during standard flights