4 files changed, 17 insertions, 0 deletions
diff --git a/gr-blocks/grc/blocks_plateau_detector_fb.xml b/gr-blocks/grc/blocks_plateau_detector_fb.xml
index 90f67a4cf5..77d0183af5 100644
--- a/gr-blocks/grc/blocks_plateau_detector_fb.xml
+++ b/gr-blocks/grc/blocks_plateau_detector_fb.xml
@@ -4,6 +4,7 @@
   <key>blocks_plateau_detector_fb</key>
   <import>from gnuradio import blocks</import>
   <make>blocks.plateau_detector_fb($max_len, $threshold)</make>
+  <callback>set_threshold($threshold)</callback>
   <param>
     <name>Max. plateau length</name>
     <key>max_len</key>
diff --git a/gr-blocks/include/gnuradio/blocks/plateau_detector_fb.h b/gr-blocks/include/gnuradio/blocks/plateau_detector_fb.h
index cb43625c1f..9a9d7c8a16 100644
--- a/gr-blocks/include/gnuradio/blocks/plateau_detector_fb.h
+++ b/gr-blocks/include/gnuradio/blocks/plateau_detector_fb.h
@@ -61,6 +61,9 @@ namespace gr {
 	* \param threshold Anything above this value is considered a plateau
 	*/
        static sptr make(int max_len, float threshold=0.9);
+
+       virtual void set_threshold(float threshold) = 0;
+       virtual float threshold() const = 0;
     };
 
   } // namespace blocks
diff --git a/gr-blocks/lib/plateau_detector_fb_impl.cc b/gr-blocks/lib/plateau_detector_fb_impl.cc
index 14d52b392c..f074f30131 100644
--- a/gr-blocks/lib/plateau_detector_fb_impl.cc
+++ b/gr-blocks/lib/plateau_detector_fb_impl.cc
@@ -86,6 +86,16 @@ namespace gr {
       return i;
     }
 
+    void plateau_detector_fb_impl::set_threshold(float threshold)
+    {
+      d_threshold = threshold;
+    }
+
+    float plateau_detector_fb_impl::threshold() const
+    {
+      return d_threshold;
+    }
+
   } /* namespace blocks */
 } /* namespace gr */
 
diff --git a/gr-blocks/lib/plateau_detector_fb_impl.h b/gr-blocks/lib/plateau_detector_fb_impl.h
index 906891d62b..1a99745104 100644
--- a/gr-blocks/lib/plateau_detector_fb_impl.h
+++ b/gr-blocks/lib/plateau_detector_fb_impl.h
@@ -44,6 +44,9 @@ class plateau_detector_fb_impl : public plateau_detector_fb
                       gr_vector_int &ninput_items,
                       gr_vector_const_void_star &input_items,
                       gr_vector_void_star &output_items);
+
+  virtual void set_threshold(float threshold);
+  virtual float threshold() const;
 };
 
   } // namespace blocks