diff --git a/config b/config
index aec9bf5f..afc9c020 100755
--- a/config
+++ b/config
@@ -1207,9 +1207,21 @@ elif [ "$1" = "-e" ]; then
 elif [ "$1" = "-n" ]; then
 
 	echo "changing CubeSatSim to Transmit Command and Control mode"
-	sudo echo "n" > /home/pi/CubeSatSim/.mode
 
-	restart=1
+	value=`cat /home/pi/CubeSatSim/.mode`
+	echo "$value" > /dev/null
+	set -- $value
+
+	if [ "$1" = "n" ]; then
+		echo "Turning Transmit Command and Control mode OFF"
+		echo "Switching to FSK mode"
+		sudo echo "f" > /home/pi/CubeSatSim/.mode
+		reboot=1
+	else
+		echo "Turning Transmit Command and Control mode ON"
+		sudo echo "n" > /home/pi/CubeSatSim/.mode
+		restart=1
+	fi
 
 elif [ "$1" = "-A" ]; then