added 5 dummy packets at start of APRS

rpitx.py

@@ -24,8 +24,6 @@ else:
 	txLedOn = 1 
 	txLedOff = 0
 
-time.sleep(15)  // delay to cover cubesatsim initialization time
-
 GPIO.setup(txLed, GPIO.OUT)
 print(txLedOn)
 print(txLed)
@@ -55,7 +53,10 @@ if __name__ == "__main__":
 		if (len(sys.argv)) > 1:
 #        		print("There are arguments!")
 			if (('a' == sys.argv[1]) or ('afsk' in sys.argv[1])):
-				print("AFSK") 
+				print("AFSK")
+				for x in range(5):
+					time.sleep(5);
+					system("sudo gen_packets -o /home/pi/CubeSatSim/telem.wav /home/pi/CubeSatSim/t.txt -r 48000 > /dev/null 2>&1 && cat /home/pi/CubeSatSim/telem.wav | csdr convert_i16_f | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 | sudo /home/pi/rpitx/rpitx -i- -m RF -f 434.9e3 > /dev/null 2>&1")
 				while True:
 					try:
 						f = open("/home/pi/CubeSatSim/ready")