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diff --git a/gr-atsc/src/lib/atsc_equalizer.h b/gr-atsc/src/lib/atsc_equalizer.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2006 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 2, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#ifndef INCLUDED_ATSC_EQUALIZER_H
+#define INCLUDED_ATSC_EQUALIZER_H
+
+#include <gr_sync_block.h>
+#include <atsci_equalizer.h>
+
+class atsc_equalizer;
+typedef boost::shared_ptr<atsc_equalizer> atsc_equalizer_sptr;
+
+atsc_equalizer_sptr atsc_make_equalizer();
+
+/*!
+ * \brief ATSC equalizer (float,syminfo --> float,syminfo)
+ * \ingroup atsc
+ *
+ * first inputs are data samples, second inputs are tags.
+ * first outputs are equalized data samples, second outputs are tags.
+ */
+class atsc_equalizer : public gr_sync_block
+{
+  friend atsc_equalizer_sptr atsc_make_equalizer();
+
+  atsc_equalizer();
+
+public:
+  void forecast (int noutput_items, gr_vector_int &ninput_items_required);
+  int work (int noutput_items,
+	    gr_vector_const_void_star &input_items,
+	    gr_vector_void_star &output_items);
+
+  void reset() { /* nop */ }
+
+  ~atsc_equalizer ();
+
+
+protected:
+  atsci_equalizer	*d_equalizer;
+
+};
+
+
+#endif /* INCLUDED_ATSC_EQUALIZER_H */