diff --git a/rpitx.py b/rpitx.py
index 2a989e0a..45268738 100644
--- a/rpitx.py
+++ b/rpitx.py
@@ -728,7 +728,7 @@ if __name__ == "__main__":
 			print("Turning LED on/off and listening for carrier")
 			while 1:
 				output(txLed, txLedOff)
-				sleep(0.5)
+				sleep(0.4)
 #				if (command_tx == False):
 #					output(txLed, txLedOn)
 #					sleep(0.03)
@@ -737,7 +737,7 @@ if __name__ == "__main__":
 				
 				if (command_tx == True):		
 					output(txLed, txLedOn)
-				sleep(4.0)
+				sleep(4.2)
 		else:
 			print("FSK") 
 			print("turn on FM rx")
@@ -748,7 +748,7 @@ if __name__ == "__main__":
 			print("Turning LED on/off and listening for carrier")
 			while 1:
 				output(txLed, txLedOff)
-				sleep(0.5)
+				sleep(0.4)
 #				if (command_tx == False):
 #					output(txLed, txLedOn)
 #					sleep(0.03)
@@ -756,7 +756,7 @@ if __name__ == "__main__":
 				command_control_check()
 				if (command_tx == True):		
 					output(txLed, txLedOn)
-				sleep(4.0)
+				sleep(4.2)
 	else:
 		print("No Low Pass Filter so no telemetry transmit.  See http://cubesatsim.org/wiki for instructions on how to build the BPF.")
 		while 1: