diff --git a/boswatch/processManager.py b/boswatch/processManager.py
index 27d5f05..6f6840d 100644
--- a/boswatch/processManager.py
+++ b/boswatch/processManager.py
@@ -37,14 +37,17 @@ class ProcessManager:
 
         @param arg: argument to add as string"""
         logging.debug("add argument to process: %s -> %s", self._args[0], arg)
-        self._args.append(arg.split())
+        for splitArg in arg.split():
+            self._args.append(splitArg)
 
     def clearArguments(self):
         """!clear all arguments"""
         self._args = self._args[0:1]  # kept first element (process name)
 
     def start(self):
-        """!start the new process"""
+        """!start the new process
+
+        @return: True or False"""
         logging.debug("start new process: %s", self._args)
         try:
             self._processHandle = subprocess.Popen(self._args,
@@ -52,17 +55,24 @@ class ProcessManager:
                                                    stdout=self._stdout,
                                                    stderr=self._stderr,
                                                    universal_newlines=self._textMode)
+            if not self.isRunning:
+                logging.error("cannot start")
+                return False
+            return True
+
         except FileNotFoundError:
             logging.error("File not found: %s", self._args[0])
+            return False
 
     def stop(self):
         """!Stop the process by sending SIGTERM and wait for ending"""
-        if self._processHandle and self.isRunning:
-            logging.debug("stopping process: %s", self._args[0])
+        logging.debug("stopping process: %s", self._args[0])
+        if self.isRunning:
             self._processHandle.terminate()
             while self.isRunning:
                 pass
-        logging.debug("cannot stop - process not running: %s", self._args[0])
+        else:
+            logging.debug("process not running: %s", self._args[0])
 
     def readline(self):
         """!Read one line from stdout stream
diff --git a/bw_client.py b/bw_client.py
index 58cc0e5..2ae2162 100644
--- a/bw_client.py
+++ b/bw_client.py
@@ -47,23 +47,52 @@ from boswatch.processManager import ProcessManager
 header.logoToLog()
 header.infoToLog()
 
+# sox = ProcessManager("_bin/win/sox/sox.exe")
+# rtl = ProcessManager("_bin/win/rtl_fm/rtl_fm.exe")
 # multimon = ProcessManager("_bin/win/multimon/multimon-ng.exe", True)
-# multimon.addArgument("-a POCSAG1200")
-# multimon.addArgument("-t raw")
-# multimon.addArgument("-v 3")
-# multimon.addArgument("poc1200.raw")
 #
-# multimon.setStderr(None)
-# multimon.start()
 #
-# logging.debug("go")
+# try:
+#     rtl.addArgument("-f 85.235MHz")
+#     rtl.addArgument("-d 1")
+#     rtl.addArgument("-M fm -s 22050 -g 100")
+#     rtl.setStderr(None)
+#     #rtl.start()
 #
-# while multimon.isRunning:
-#     data = multimon.readline()
-#     if data is not None:
-#         print(data)
+#     sox.addArgument("-t ogg 88022.ogg -esigned-integer -b16 -r 22050 -t raw -")
+#     sox.setStderr(None)
+#     sox.start()
 #
 #
+#     #.\_bin\win\sox\sox.exe -t ogg -esigned-integer -b16 -r 22050 88022.ogg -
+#
+#     multimon.addArgument("-a ZVEI1 -a FMSFSK")
+#     multimon.addArgument("-t raw")
+#     #multimon.addArgument("-v 3")
+#     multimon.addArgument("-")
+#     multimon.setStdin(sox.stdout)
+#     multimon.setStderr(None)
+#
+#     multimon.start()
+#
+#     logging.debug("go")
+#
+#     while multimon.isRunning:
+#         data = multimon.readline()
+#         if data is not None:
+#             print(data)
+#
+#     logging.debug("end")
+#
+# except:
+#     logging.exception("batsch")
+#
+# finally:
+#
+#     sox.stop()
+#     multimon.stop()
+#     rtl.stop()
+#
 # exit()
 
 logging.debug("parse args")