diff --git a/schainpy/model/io/jroIO_base.py b/schainpy/model/io/jroIO_base.py
index 749ccb9..0b2e559 100644
--- a/schainpy/model/io/jroIO_base.py
+++ b/schainpy/model/io/jroIO_base.py
@@ -639,7 +639,7 @@ class JRODataReader(JRODataIO):
 
             skippedFileList = []
 
-            if cursor is not None andk skip is not None:
+            if cursor is not None and skip is not None:
 
                 if skip == 0:
                     skippedFileList = []
diff --git a/schainpy/model/io/jroIO_digitalRF.py b/schainpy/model/io/jroIO_digitalRF.py
index 84338f1..45233b8 100644
--- a/schainpy/model/io/jroIO_digitalRF.py
+++ b/schainpy/model/io/jroIO_digitalRF.py
@@ -106,7 +106,7 @@ class DigitalRFReader(ProcessingUnit):
 
         # self.dataOut.nHeights = 0
 
-        self.dataOut.nProfiles = nProfiles
+        self.dataOut.nProfiles = int(nProfiles)
 
         self.dataOut.heightList = self.__firstHeigth + numpy.arange(self.__nSamples, dtype = numpy.float)*self.__deltaHeigth