diff --git a/rpitx.py b/rpitx.py
index ccdb6038..41df0ec1 100644
--- a/rpitx.py
+++ b/rpitx.py
@@ -153,14 +153,6 @@ GPIO.setup(27, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 GPIO.setup(txc_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 GPIO.setup(green, GPIO.OUT)
 
-GPIO.setup(squelch, GPIO.IN, pull_up_down=GPIO.PUD_UP)  ## pull up in case pin is not connected
-
-if GPIO.input(squelch) == False:
-	print("squelch not set correctly, no command input!")
-	no_command = True
-else:
-	no_command = False
-
 transmit = False
 if GPIO.input(12) == False:
 	print("Version is v1 with UHF BPF")
@@ -311,6 +303,23 @@ if __name__ == "__main__":
 		if (debug_mode == 1):
 			print("Can't read callsign from sim.cfg file, defaulting to AMSAT")	
 	file.close()
+
+	try:
+		f = open("/home/pi/CubeSatSim/command_control", "r")
+		f.close()
+		GPIO.setmode(GPIO.BCM)
+		GPIO.setwarnings(False)
+		GPIO.setup(squelch, GPIO.IN, pull_up_down=GPIO.PUD_UP)  ## pull up in case pin is not connected
+		if GPIO.input(squelch) == False:
+			print("squelch not set correctly, no command input!")
+			no_command = True
+		else:
+			print("command and control is activated")
+			no_command = False
+	except:
+		print("command and control not activated")
+		no_command = True
+	
 	print(callsign)
 	GPIO.setmode(GPIO.BCM)  # added to make Tx LED work on Pi 4
 	GPIO.setup(txLed, GPIO.OUT)