Update transmit.py send both SR105U and SA818 strings

transmit.py

@@ -361,12 +361,16 @@ if __name__ == "__main__":
 	try:
 		ser = serial.Serial("/dev/ttyAMA0", 9600)
 		print(ser.portstr)
-#		uhf_string = "AT+DMOSETGROUP=0," + rx +"," + tx + ",0,3,0,0\r\n"
-		uhf_string = "AT+DMOSETGROUP=0," + rx + "," + tx + "," + rxpl_value + "," + sq + "," + txpl_value + ",0\r\n"
-		print(uhf_string)
+		uhf_string1 = "AT+DMOSETGROUP=0," + rx + "," + tx + "," + rxpl_value + "," + sq + "," + txpl_value + ",0\r\n"
+		uhf_string2 = "AT+DMOSETGROUP=0," + tx + "," + rx + ",0000," + sq + ",0000\r\n"			
+		connect_string = "AT+DMOCONNECT\r\n"
+		
+		print(uhf_string2)
 		for i in range(6):
 #			ser.write(b"AT+DMOSETGROUP=0,435.0000,434.9000,0,3,0,0\r\n")
-			ser.write(uhf_string.encode())
+			ser.write(uhf_string1.encode())
+			ser.write(connect_string.encode())
+			ser.write(uhf_string2.encode())
 			sleep(0.1)
 		ser.close()
 		ser = serial.Serial("/dev/ttyAMA0", 115200) # reset back to 115200 for cubesatsim code for payload sensor data