diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index e4961bea..f2b17682 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -3848,9 +3848,11 @@ void transmit_cw(int freq, float duration) {  // freq in Hz, duration in millise
   else {
     Serial.println("No sr_frs present!");
     unsigned long start = micros();
+    clockgen.enableOutputs(true);	  
     digitalWrite(BPSK_CONTROL_A, HIGH);  	  
     while((micros() - start) < duration_us)  { }
     digitalWrite(BPSK_CONTROL_A, LOW);  	
+    clockgen.enableOutputs(false);		  
   }
 
 //  if (!wifi)