diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index 5d85bf62..f402767c 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -136,7 +136,7 @@ void loop() {
   else if (mode == AFSK)
 	  send_packet();
 	
-//  test_radio();
+  test_radio();
 	
   digitalWrite(LED_BUILTIN, LOW);