diff --git a/schainpy/model/proc/jroproc_spectra.py b/schainpy/model/proc/jroproc_spectra.py
index 192cafa..ab81733 100644
--- a/schainpy/model/proc/jroproc_spectra.py
+++ b/schainpy/model/proc/jroproc_spectra.py
@@ -64,6 +64,8 @@ class SpectraProc(ProcessingUnit):
         self.dataOut.beam.codeList = self.dataIn.beam.codeList
         self.dataOut.beam.azimuthList = self.dataIn.beam.azimuthList
         self.dataOut.beam.zenithList = self.dataIn.beam.zenithList
+        self.dataOut.h0 = self.dataIn.h0
+
 
     def __getFft(self):
         """