diff --git a/schainpy2/Data/JROData.py b/schainpy2/Data/JROData.py
index b288044..8ba62e4 100644
--- a/schainpy2/Data/JROData.py
+++ b/schainpy2/Data/JROData.py
@@ -143,6 +143,8 @@ class Spectra(JROData):
     
     nIncohInt = None
     
+    wavelength = None #Necesario para cacular el rango de velocidad desde la frecuencia
+    
     nCohInt = None #se requiere para determinar el valor de timeInterval
     
     def __init__(self):
@@ -182,6 +184,16 @@ class Spectra(JROData):
         
         self.blocksize = None
         
+        self.nFFTPoints = None
+        
+        self.wavelength = None
+    
+    def getFrequencies(self):
+        
+        xrange = numpy.arange(self.nFFTPoints)
+        xrange = xrange  
+        return None
+        
         
 class SpectraHeis(JROData):
     
diff --git a/schainpy2/Processing/SpectraProcessor.py b/schainpy2/Processing/SpectraProcessor.py
index d6c1236..8231830 100644
--- a/schainpy2/Processing/SpectraProcessor.py
+++ b/schainpy2/Processing/SpectraProcessor.py
@@ -55,7 +55,7 @@ class SpectraProcessor:
         self.firstdatatime = None
         self.profIndex = 0
         
-    def setup(self, dataInObj=None, dataOutObj=None, nFFTPoints=None, pairsList=None):
+    def setup(self, dataInObj=None, dataOutObj=None, nFFTPoints=None, pairsList=None, wavelength=6):
         
         if dataInObj == None:
             raise ValueError, "This SpectraProcessor.setup() function needs dataInObj input variable"
@@ -89,11 +89,19 @@ class SpectraProcessor:
         self.dataOutObj.nFFTPoints = nFFTPoints
         self.dataOutObj.pairsList = pairsList
         self.dataOutObj.nPairs = nPairs
+        self.dataOutObj.wavelength = wavelength
         
         return self.dataOutObj
     
     def init(self):
         
+        """
+        
+        Este metodo reinicia los contadores de los objetos integrator, writer y plotter
+        y actualiza los parametros del objeto de salida dataOutObj a partir del objeto de entrada.       
+        
+        """
+        
         self.dataOutObj.flagNoData = True
         
         if self.dataInObj.flagNoData: