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diff --git a/gr-atsc/include/atsc/GrAtscEqualizer.h b/gr-atsc/include/atsc/GrAtscEqualizer.h
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+++ b/gr-atsc/include/atsc/GrAtscEqualizer.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2002 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _GRATSCEQUALIZER_H_
+#define _GRATSCEQUALIZER_H_
+
+#include <VrHistoryProc.h>
+
+class atsci_equalizer;
+
+/*!
+ * \brief ATSC equalizer (float,syminfo --> float,syminfo)
+ *
+ * first inputs are data samples, second inputs are tags.
+ * first outputs are equalized data samples, second outputs are tags.
+ *
+ * tag values are defined in atsci_syminfo.h
+ */
+
+class GrAtscEqualizer : public VrHistoryProc<float,float>
+{
+
+public:
+
+  GrAtscEqualizer (atsci_equalizer *equalizer);
+  ~GrAtscEqualizer ();
+
+  const char *name () { return "GrAtscEqualizer"; }
+
+  int work (VrSampleRange output, void *o[],
+	    VrSampleRange inputs[], void *i[]);
+
+  // we've got a non-standard forecast routine
+  int forecast (VrSampleRange output, VrSampleRange inputs[]);
+
+protected:
+  atsci_equalizer	*d_equalizer;
+};
+
+#endif /* _GRATSCEQUALIZER_H_ */