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diff --git a/gr-analog/include/gnuradio/analog/sig_source.h b/gr-analog/include/gnuradio/analog/sig_source.h
new file mode 100644
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+++ b/gr-analog/include/gnuradio/analog/sig_source.h
@@ -0,0 +1,79 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2012,2018 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 SIG_SOURCE_H
+#define SIG_SOURCE_H
+
+#include <gnuradio/analog/api.h>
+#include <gnuradio/analog/sig_source_waveform.h>
+#include <gnuradio/sync_block.h>
+
+namespace gr {
+  namespace analog {
+
+    /*!
+     * \brief signal generator with T output.
+     * \ingroup waveform_generators_blk
+     */
+template<class T>
+    class ANALOG_API sig_source : virtual public sync_block
+    {
+    public:
+      // gr::analog::sig_source::sptr
+      typedef boost::shared_ptr< sig_source<T> > sptr;
+
+      /*!
+       * Build a signal source block.
+       *
+       * \param sampling_freq Sampling rate of signal.
+       * \param waveform wavetform type.
+       * \param wave_freq Frequency of waveform (relative to sampling_freq).
+       * \param ampl Signal amplitude.
+       * \param offset offset of signal.
+       */
+      static sptr make(double sampling_freq,
+		       gr::analog::gr_waveform_t waveform,
+		       double wave_freq,
+		       double ampl, T offset = 0);
+
+      virtual double sampling_freq() const = 0;
+      virtual gr::analog::gr_waveform_t waveform() const = 0;
+      virtual double frequency() const = 0;
+      virtual double amplitude() const = 0;
+      virtual T offset() const = 0;
+
+      virtual void set_sampling_freq(double sampling_freq) = 0;
+      virtual void set_waveform(gr::analog::gr_waveform_t waveform) = 0;
+      virtual void set_frequency(double frequency) = 0;
+      virtual void set_amplitude(double ampl) = 0;
+      virtual void set_offset(T offset) = 0;
+    };
+
+    typedef sig_source<std::int16_t> sig_source_s;
+    typedef sig_source<std::int32_t> sig_source_i;
+    typedef sig_source<float> sig_source_f;
+    typedef sig_source<gr_complex> sig_source_c;
+  } /* namespace analog */
+} /* namespace gr */
+
+#endif /* SIG_SOURCE_H */