diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index 819b6635..838e5fe2 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -4101,7 +4101,7 @@ void program_radio() {
 //     mySerial.println("AT+DMOSETGROUP=0,432.2510,432.2510,0,8,0,0\r");  
      mySerial.println("AT+DMOSETGROUP=0,432.2500,432.2500,0,8,0,0\r");  
 //   sleep(0.5);	  
-   mySerial.println("AT+DMOSETMIC=8,0\r");  	
+   mySerial.println("AT+DMOSETMIC=3,0\r");  // was 8
 	
   }
 }