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diff --git a/gnuradio-runtime/include/gnuradio/fxpt_vco.h b/gnuradio-runtime/include/gnuradio/fxpt_vco.h
new file mode 100644
index 0000000000..77d58677ce
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+++ b/gnuradio-runtime/include/gnuradio/fxpt_vco.h
@@ -0,0 +1,80 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2002,2004,2005,2013 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 INCLUDED_GR_FXPT_VCO_H
+#define INCLUDED_GR_FXPT_VCO_H
+
+#include <gnuradio/api.h>
+#include <gnuradio/fxpt.h>
+#include <gnuradio/gr_complex.h>
+
+namespace gr {
+
+  /*!
+   * \brief Voltage Controlled Oscillator (VCO)
+   * \ingroup misc
+   */
+  class /*GR_RUNTIME_API*/ fxpt_vco {
+    gr_int32 d_phase;
+
+  public:
+    fxpt_vco () : d_phase(0) {}
+
+    ~fxpt_vco() {}
+
+    // radians
+    void set_phase(float angle) {
+      d_phase = fxpt::float_to_fixed(angle);
+    }
+
+    void adjust_phase(float delta_phase) {
+      d_phase += fxpt::float_to_fixed(delta_phase);
+    }
+
+    float get_phase() const { 
+      return fxpt::fixed_to_float(d_phase);
+    }
+
+    // compute sin and cos for current phase angle
+    void sincos(float *sinx, float *cosx) const
+    {
+      *sinx = fxpt::sin(d_phase);
+      *cosx = fxpt::cos(d_phase);
+    }
+
+    // compute a block at a time
+    void cos(float *output, const float *input, int noutput_items, float k, float ampl = 1.0)
+    {
+      for(int i = 0; i < noutput_items; i++) {
+        output[i] = (float)(fxpt::cos(d_phase) * ampl);
+        adjust_phase(input[i] * k);
+      }
+    }
+
+    // compute cos or sin for current phase angle
+    float cos() const { return fxpt::cos(d_phase); }
+    float sin() const { return fxpt::sin(d_phase); }
+  };
+
+} /* namespace gr */
+
+#endif /* INCLUDED_GR_FXPT_VCO_H */