diff --git a/schainpy/model/proc/jroproc_spectra.py b/schainpy/model/proc/jroproc_spectra.py
index 135cb93..4a18f26 100644
--- a/schainpy/model/proc/jroproc_spectra.py
+++ b/schainpy/model/proc/jroproc_spectra.py
@@ -698,6 +698,30 @@ class removeInterference(Operation):
         return self.dataOut
 
 
+class deflip(Operation):
+       
+    def run(self, dataOut):
+        # arreglo 1: (num_chan, num_profiles, num_heights)
+        self.dataOut = dataOut 
+ 
+        # JULIA-oblicua, indice 2
+        # arreglo 2: (num_profiles, num_heights)
+        jspectra = self.dataOut.data_spc[2]
+        jspectra_tmp=numpy.zeros(jspectra.shape)
+        num_profiles=jspectra.shape[0]
+        freq_dc = int(num_profiles / 2)
+        # Flip con for
+        for j in range(num_profiles):
+         jspectra_tmp[num_profiles-j-1]= jspectra[j]
+        # Intercambio perfil de DC con perfil inmediato anterior
+        jspectra_tmp[freq_dc-1]= jspectra[freq_dc-1]
+        jspectra_tmp[freq_dc]= jspectra[freq_dc]
+        # canal modificado es re-escrito en el arreglo de canales
+        self.dataOut.data_spc[2] = jspectra_tmp
+
+        return self.dataOut
+ 
+ 
 class IncohInt(Operation):
 
     __profIndex = 0