diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index 54031051..0d189c1e 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -3434,15 +3434,17 @@ bool TimerHandler0(struct repeating_timer *t) {
 //    Serial.println(micros() - micro_timer2);	  
     micro_timer2 = micros();	  	
     if (buffer[wav_position++] > 0) {	  
+      digitalWrite(BPSK_CONTROL_B, LOW);  
       digitalWrite(BPSK_CONTROL_A, HIGH);
 //    delayMicroseconds(2);    	  
-      digitalWrite(BPSK_CONTROL_B, LOW);  
+//      digitalWrite(BPSK_CONTROL_B, LOW);  
 //      Serial.print("-");	    
 //      clockgen.enableOutputOnly(1);	  
     } else {
+      digitalWrite(BPSK_CONTROL_A, LOW);  
       digitalWrite(BPSK_CONTROL_B, HIGH);  
 //    delayMicroseconds(2);    	  
-      digitalWrite(BPSK_CONTROL_A, LOW);	
+//      digitalWrite(BPSK_CONTROL_A, LOW);	
 //      Serial.print("_");	 
 //      clockgen.enableOutputOnly(0);	  
     }