About the SPKR button

    
         
   

VHF Comm - Icom A200 - both units, ADF audio and UHF FM

    
         
    Pressing the SPKR button turns on the cabin Speaker    
   

Pressing again deselects the Speaker

    
         
    Refer to the GMA 340 Audio Panel pilots guide for further details of this mode    
         
    Pilots should use suitable noise suppression head sets while in flight