diff --git a/demo.sh b/demo.sh
index 66042de7..328933ee 100755
--- a/demo.sh
+++ b/demo.sh
@@ -41,7 +41,11 @@ else
 	while true; do
        		echo -e "\n Changing mode ******\n\n"
  		/home/pi/CubeSatSim/radioafsk fsk 4 n
-		/home/pi/CubeSatSim/radioafsk bpsk 3 n
+		sudo killall -9 sendiq
+		sudo killall -9 csdr
+		sudo killall -9 rpitx
+		sleep 1
+		/home/pi/CubeSatSim/radioafsk bpsk 4 n
 #		sleep 24 
 		sleep 1 
 		sudo killall -9 sendiq