diff --git a/op25Handler.py b/op25Handler.py
index aed587b..67cdd9b 100644
--- a/op25Handler.py
+++ b/op25Handler.py
@@ -25,9 +25,10 @@ class OP25Handler(threading.Thread):
 
         print(os.getcwd())
 
-        self.OP25Proc = subprocess.call(["python3", f"{self.OP25Dir}/rx.py", "--args", "'rtl'", "-N", "'LNA:49'", "-s", "200000", "-o",
-                                         "25600", "-U", "-f", f"{self.Frequency}e6", "-X", "-2", "-l" "http:0.0.0.0:8080"], shell=True,
-                                         stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        self.OP25Proc = subprocess.Popen(["python3", f"{self.OP25Dir}/rx.py", "--args", "'rtl'", "-N", "'LNA:49'", "-s",
+                                          "200000", "-o","25600", "-U", "-f", f"{self.Frequency}e6", "-X", "-2",
+                                          "-l" "http:0.0.0.0:8080"], shell=True, stdout=subprocess.PIPE,
+                                         stderr=subprocess.PIPE)
 
     def close_op25(self):
         print(f"Closing OP25")