9 files changed, 1690 insertions, 1 deletions
diff --git a/gr-filter/examples/CMakeLists.txt b/gr-filter/examples/CMakeLists.txt
index 48b59ef099..a6229f38f4 100644
--- a/gr-filter/examples/CMakeLists.txt
+++ b/gr-filter/examples/CMakeLists.txt
@@ -42,6 +42,7 @@ GR_PYTHON_INSTALL(PROGRAMS
 
 install(
     FILES
+    filter_taps.grc
     resampler_demo.grc
     DESTINATION ${GR_PKG_FILTER_EXAMPLES_DIR}
     COMPONENT "filter_python"
diff --git a/gr-filter/examples/filter_taps.grc b/gr-filter/examples/filter_taps.grc
new file mode 100644
index 0000000000..48d37b228a
--- /dev/null
+++ b/gr-filter/examples/filter_taps.grc
@@ -0,0 +1,1299 @@
+<?xml version='1.0' encoding='ASCII'?>
+<?grc format='1' created='3.7.7'?>
+<flow_graph>
+  <timestamp>Wed Apr  8 11:00:48 2015</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>filter_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value></value>
+    </param>
+    <param>
+      <key>author</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>1280, 1024</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>qt_gui</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>prompt</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>thread_safe_setters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sym_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>samp_rate/sps</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1080, 171)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1016, 171)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>bp_low</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>6000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(120, 139)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>cutoff_high</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>14000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 211)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>32000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 83)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>transition</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 283)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>cutoff_low</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 147)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>bp_high</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>10000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(120, 211)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>len_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>len(lp_taps)</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(288, 35)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_band_pass_filter_taps</key>
+    <param>
+      <key>id</key>
+      <value>bp_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>taps_real</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>low_cutoff_freq</key>
+      <value>bp_low</value>
+    </param>
+    <param>
+      <key>high_cutoff_freq</key>
+      <value>bp_high</value>
+    </param>
+    <param>
+      <key>width</key>
+      <value>transition</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>firdes.WIN_HAMMING</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(696, 35)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_high_pass_filter_taps</key>
+    <param>
+      <key>id</key>
+      <value>hp_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>cutoff_freq</key>
+      <value>cutoff_low</value>
+    </param>
+    <param>
+      <key>width</key>
+      <value>transition</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>firdes.WIN_HAMMING</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(536, 35)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_low_pass_filter_taps</key>
+    <param>
+      <key>id</key>
+      <value>lp_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>cutoff_freq</key>
+      <value>cutoff_high</value>
+    </param>
+    <param>
+      <key>width</key>
+      <value>transition</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>firdes.WIN_HAMMING</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(376, 35)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_band_reject_filter_taps</key>
+    <param>
+      <key>id</key>
+      <value>br_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>low_cutoff_freq</key>
+      <value>bp_low</value>
+    </param>
+    <param>
+      <key>high_cutoff_freq</key>
+      <value>bp_high</value>
+    </param>
+    <param>
+      <key>width</key>
+      <value>transition</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>firdes.WIN_HAMMING</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(856, 35)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>fir_filter_xxx</key>
+    <param>
+      <key>id</key>
+      <value>lp_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fff</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>lp_taps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value>Low-pass filter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(392, 203)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>fir_filter_xxx</key>
+    <param>
+      <key>id</key>
+      <value>hp_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fff</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>hp_taps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value>High-pass filter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(392, 307)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>fir_filter_xxx</key>
+    <param>
+      <key>id</key>
+      <value>bp_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fff</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>bp_taps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value>Band-pass filter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(392, 403)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>fir_filter_xxx</key>
+    <param>
+      <key>id</key>
+      <value>br_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fff</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>br_taps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value>Band-reject filter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(392, 499)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_rrc_filter_taps</key>
+    <param>
+      <key>id</key>
+      <value>rrc_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>sym_rate</key>
+      <value>sym_rate</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>0.35</value>
+    </param>
+    <param>
+      <key>ntaps</key>
+      <value>11*sps</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1016, 35)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>analog_fastnoise_source_x</key>
+    <param>
+      <key>id</key>
+      <value>analog_fastnoise_source_x_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>noise_type</key>
+      <value>analog.GR_GAUSSIAN</value>
+    </param>
+    <param>
+      <key>amp</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>seed</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>samples</key>
+      <value>8192</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(176, 387)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>fir_filter_xxx</key>
+    <param>
+      <key>id</key>
+      <value>rrc_filter</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fff</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>rrc_taps</value>
+    </param>
+    <param>
+      <key>samp_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value>RRC filter</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(392, 587)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
+    <param>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>fftsize</key>
+      <value>4096</value>
+    </param>
+    <param>
+      <key>freqhalf</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+    </param>
+    <param>
+      <key>fc</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>0.2</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-140</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>5</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value></value>
+    </param>
+    <param>
+      <key>showports</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
+    </param>
+    <param>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>ctrlpanel</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>legend</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value>Low-pass</value>
+    </param>
+    <param>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>0.9</value>
+    </param>
+    <param>
+      <key>label2</key>
+      <value>High-pass</value>
+    </param>
+    <param>
+      <key>width2</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>alpha2</key>
+      <value>0.9</value>
+    </param>
+    <param>
+      <key>label3</key>
+      <value>Band-pass</value>
+    </param>
+    <param>
+      <key>width3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>alpha3</key>
+      <value>0.9</value>
+    </param>
+    <param>
+      <key>label4</key>
+      <value>Band-reject</value>
+    </param>
+    <param>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color4</key>
+      <value>"cyan"</value>
+    </param>
+    <param>
+      <key>alpha4</key>
+      <value>0.9</value>
+    </param>
+    <param>
+      <key>label5</key>
+      <value>RRC</value>
+    </param>
+    <param>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>0.9</value>
+    </param>
+    <param>
+      <key>label6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"yellow"</value>
+    </param>
+    <param>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"dark blue"</value>
+    </param>
+    <param>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(728, 416)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>bp_filter</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>2</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>analog_fastnoise_source_x_0</source_block_id>
+    <sink_block_id>bp_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>hp_filter</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>analog_fastnoise_source_x_0</source_block_id>
+    <sink_block_id>hp_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>lp_filter</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>analog_fastnoise_source_x_0</source_block_id>
+    <sink_block_id>lp_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>analog_fastnoise_source_x_0</source_block_id>
+    <sink_block_id>br_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>br_filter</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>3</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>rrc_filter</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>4</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>analog_fastnoise_source_x_0</source_block_id>
+    <sink_block_id>rrc_filter</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>
diff --git a/gr-filter/grc/CMakeLists.txt b/gr-filter/grc/CMakeLists.txt
index 575f6675d6..b3bc2e1828 100644
--- a/gr-filter/grc/CMakeLists.txt
+++ b/gr-filter/grc/CMakeLists.txt
@@ -45,6 +45,11 @@ install(FILES
     filter_band_pass_filter.xml
     filter_band_reject_filter.xml
     filter_root_raised_cosine_filter.xml
+    variable_low_pass_filter_taps.xml
+    variable_high_pass_filter_taps.xml
+    variable_band_pass_filter_taps.xml
+    variable_band_reject_filter_taps.xml
+    variable_rrc_filter_taps.xml
     DESTINATION ${GRC_BLOCKS_DIR}
     COMPONENT "filter_python"
 )
diff --git a/gr-filter/grc/filter_block_tree.xml b/gr-filter/grc/filter_block_tree.xml
index fbba9daf09..ea869a75bd 100644
--- a/gr-filter/grc/filter_block_tree.xml
+++ b/gr-filter/grc/filter_block_tree.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 
 <!--
- Copyright 2012 Free Software Foundation, Inc.
+ Copyright 2012,2015 Free Software Foundation, Inc.
 
  This file is part of GNU Radio
 
@@ -30,6 +30,12 @@
    <name></name> <!-- Blank for Root Name -->
    <cat>
       <name>Filters</name>
+      <!-- FIR filter tap generators -->
+      <block>variable_low_pass_filter_taps</block>
+      <block>variable_high_pass_filter_taps</block>
+      <block>variable_band_pass_filter_taps</block>
+      <block>variable_band_reject_filter_taps</block>
+      <block>variable_rrc_filter_taps</block>
       <!-- FIR convenience filters -->
       <block>low_pass_filter</block>
       <block>high_pass_filter</block>
diff --git a/gr-filter/grc/variable_band_pass_filter_taps.xml b/gr-filter/grc/variable_band_pass_filter_taps.xml
new file mode 100644
index 0000000000..6cdfcc0373
--- /dev/null
+++ b/gr-filter/grc/variable_band_pass_filter_taps.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0"?>
+<!--
+#######################################################
+# Convenience wrapper for calling firdes.band_pass(...)
+# or firdes.complex_bandpass(...)
+#######################################################
+ -->
+<block>
+  <name>Band-pass Filter Taps</name>
+  <key>variable_band_pass_filter_taps</key>
+  <import>from gnuradio.filter import firdes</import>
+  <var_make>
+self.$(id) = $(id) = firdes.$(type.fcn)($gain, $samp_rate, $low_cutoff_freq, $high_cutoff_freq, $width, $win, $beta)
+  </var_make>
+  <var_value>firdes.$(type.fcn)($gain, $samp_rate, $low_cutoff_freq, $high_cutoff_freq, $width, $win, $beta)</var_value>
+  <make></make>
+
+  <param>
+    <name>Tap Type</name>
+    <key>type</key>
+    <type>enum</type>
+    <option>
+      <name>Real</name>
+      <key>taps_real</key>
+      <opt>fcn:band_pass</opt>
+    </option>
+    <option>
+      <name>Complex</name>
+      <key>taps_complex</key>
+      <opt>fcn:complex_band_pass</opt>
+    </option>
+  </param>
+  <param>
+    <name>Gain</name>
+    <key>gain</key>
+    <value>1.0</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Sample Rate (Hz)</name>
+    <key>samp_rate</key>
+    <value>samp_rate</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Low Cutoff Freq (Hz)</name>
+    <key>low_cutoff_freq</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>High Cutoff Freq (Hz)</name>
+    <key>high_cutoff_freq</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Transition Width (Hz)</name>
+    <key>width</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Window</name>
+    <key>win</key>
+    <value>firdes.WIN_HAMMING</value>
+    <type>int</type>
+    <option>
+      <name>Hamming</name>
+      <key>firdes.WIN_HAMMING</key>
+    </option>
+    <option>
+      <name>Hann</name>
+      <key>firdes.WIN_HANN</key>
+    </option>
+    <option>
+      <name>Blackman</name>
+      <key>firdes.WIN_BLACKMAN</key>
+    </option>
+    <option>
+      <name>Rectangular</name>
+      <key>firdes.WIN_RECTANGULAR</key>
+    </option>
+    <option>
+      <name>Kaiser</name>
+      <key>firdes.WIN_KAISER</key>
+    </option>
+  </param>
+  <param>
+    <name>Beta</name>
+    <key>beta</key>
+    <value>6.76</value>
+    <type>float</type>
+  </param>
+  <doc>
+    This is a convenience wrapper for calling firdes.band_pass() or firdes.complex_band_pass()
+
+    The beta paramater only applies to the Kaiser window.
+  </doc>
+</block>
diff --git a/gr-filter/grc/variable_band_reject_filter_taps.xml b/gr-filter/grc/variable_band_reject_filter_taps.xml
new file mode 100644
index 0000000000..fbf25886d3
--- /dev/null
+++ b/gr-filter/grc/variable_band_reject_filter_taps.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0"?>
+<!--
+#########################################################
+# Convenience wrapper for calling firdes.band_reject(...)
+#########################################################
+ -->
+<block>
+  <name>Band-reject Filter Taps</name>
+  <key>variable_band_reject_filter_taps</key>
+  <import>from gnuradio.filter import firdes</import>
+  <var_make>
+self.$(id) = $(id) = firdes.band_reject($gain, $samp_rate, $low_cutoff_freq, $high_cutoff_freq, $width, $win, $beta)
+  </var_make>
+  <var_value>firdes.band_reject($gain, $samp_rate, $low_cutoff_freq, $high_cutoff_freq, $width, $win, $beta)</var_value>
+  <make></make>
+
+  <param>
+    <name>Gain</name>
+    <key>gain</key>
+    <value>1.0</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Sample Rate (Hz)</name>
+    <key>samp_rate</key>
+    <value>samp_rate</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Low Cutoff Freq (Hz)</name>
+    <key>low_cutoff_freq</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>High Cutoff Freq (Hz)</name>
+    <key>high_cutoff_freq</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Transition Width (Hz)</name>
+    <key>width</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Window</name>
+    <key>win</key>
+    <value>firdes.WIN_HAMMING</value>
+    <type>int</type>
+    <option>
+      <name>Hamming</name>
+      <key>firdes.WIN_HAMMING</key>
+    </option>
+    <option>
+      <name>Hann</name>
+      <key>firdes.WIN_HANN</key>
+    </option>
+    <option>
+      <name>Blackman</name>
+      <key>firdes.WIN_BLACKMAN</key>
+    </option>
+    <option>
+      <name>Rectangular</name>
+      <key>firdes.WIN_RECTANGULAR</key>
+    </option>
+    <option>
+      <name>Kaiser</name>
+      <key>firdes.WIN_KAISER</key>
+    </option>
+  </param>
+  <param>
+    <name>Beta</name>
+    <key>beta</key>
+    <value>6.76</value>
+    <type>float</type>
+  </param>
+  <doc>
+    This is a convenience wrapper for calling firdes.band_reject().
+
+    The beta paramater only applies to the Kaiser window.
+  </doc>
+</block>
diff --git a/gr-filter/grc/variable_high_pass_filter_taps.xml b/gr-filter/grc/variable_high_pass_filter_taps.xml
new file mode 100644
index 0000000000..08768d808a
--- /dev/null
+++ b/gr-filter/grc/variable_high_pass_filter_taps.xml
@@ -0,0 +1,75 @@
+<?xml version="1.0"?>
+<!--
+######################################################
+## Convenience wrapper around call to fides.high_pass()
+######################################################
+ -->
+<block>
+  <name>High-pass Filter Taps</name>
+  <key>variable_high_pass_filter_taps</key>
+  <import>from gnuradio.filter import firdes</import>
+  <var_make>
+self.$(id) = $(id) = firdes.high_pass($gain, $samp_rate, $cutoff_freq, $width, $win, $beta)
+  </var_make>
+  <var_value>firdes.high_pass($gain, $samp_rate, $cutoff_freq, $width, $win, $beta)</var_value>
+  <make></make>
+  <param>
+    <name>Gain</name>
+    <key>gain</key>
+    <value>1.0</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Sample Rate (Hz)</name>
+    <key>samp_rate</key>
+    <value>samp_rate</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Cutoff Freq (Hz)</name>
+    <key>cutoff_freq</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Transition Width (Hz)</name>
+    <key>width</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Window</name>
+    <key>win</key>
+    <value>firdes.WIN_HAMMING</value>
+    <type>int</type>
+    <option>
+      <name>Hamming</name>
+      <key>firdes.WIN_HAMMING</key>
+    </option>
+    <option>
+      <name>Hann</name>
+      <key>firdes.WIN_HANN</key>
+    </option>
+    <option>
+      <name>Blackman</name>
+      <key>firdes.WIN_BLACKMAN</key>
+    </option>
+    <option>
+      <name>Rectangular</name>
+      <key>firdes.WIN_RECTANGULAR</key>
+    </option>
+    <option>
+      <name>Kaiser</name>
+      <key>firdes.WIN_KAISER</key>
+    </option>
+  </param>
+  <param>
+    <name>Beta</name>
+    <key>beta</key>
+    <value>6.76</value>
+    <type>float</type>
+  </param>
+  <doc>
+    This variable is a convenience wrapper around a call to firdes.high_pass(...).
+
+    The beta paramater only applies to the Kaiser window.
+  </doc>
+</block>
diff --git a/gr-filter/grc/variable_low_pass_filter_taps.xml b/gr-filter/grc/variable_low_pass_filter_taps.xml
new file mode 100644
index 0000000000..e3367b1ec5
--- /dev/null
+++ b/gr-filter/grc/variable_low_pass_filter_taps.xml
@@ -0,0 +1,75 @@
+<?xml version="1.0"?>
+<!--
+######################################################
+## Convenience wrapper around call to fides.low_pass()
+######################################################
+ -->
+<block>
+  <name>Low-pass Filter Taps</name>
+  <key>variable_low_pass_filter_taps</key>
+  <import>from gnuradio.filter import firdes</import>
+  <var_make>
+self.$(id) = $(id) = firdes.low_pass($gain, $samp_rate, $cutoff_freq, $width, $win, $beta)
+  </var_make>
+  <var_value>firdes.low_pass($gain, $samp_rate, $cutoff_freq, $width, $win, $beta)</var_value>
+  <make></make>
+  <param>
+    <name>Gain</name>
+    <key>gain</key>
+    <value>1.0</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Sample Rate (Hz)</name>
+    <key>samp_rate</key>
+    <value>samp_rate</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Cutoff Freq (Hz)</name>
+    <key>cutoff_freq</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Transition Width (Hz)</name>
+    <key>width</key>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Window</name>
+    <key>win</key>
+    <value>firdes.WIN_HAMMING</value>
+    <type>int</type>
+    <option>
+      <name>Hamming</name>
+      <key>firdes.WIN_HAMMING</key>
+    </option>
+    <option>
+      <name>Hann</name>
+      <key>firdes.WIN_HANN</key>
+    </option>
+    <option>
+      <name>Blackman</name>
+      <key>firdes.WIN_BLACKMAN</key>
+    </option>
+    <option>
+      <name>Rectangular</name>
+      <key>firdes.WIN_RECTANGULAR</key>
+    </option>
+    <option>
+      <name>Kaiser</name>
+      <key>firdes.WIN_KAISER</key>
+    </option>
+  </param>
+  <param>
+    <name>Beta</name>
+    <key>beta</key>
+    <value>6.76</value>
+    <type>float</type>
+  </param>
+  <doc>
+    This variable is a convenience wrapper around a call to firdes.low_pass(...).
+
+    The beta paramater only applies to the Kaiser window.
+  </doc>
+</block>
diff --git a/gr-filter/grc/variable_rrc_filter_taps.xml b/gr-filter/grc/variable_rrc_filter_taps.xml
new file mode 100644
index 0000000000..2824ba75b2
--- /dev/null
+++ b/gr-filter/grc/variable_rrc_filter_taps.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0"?>
+<!--
+########################################################################
+## Convenience wrapper for calling firdes.root_raised_cosine_filter(...)
+########################################################################
+ -->
+<block>
+  <name>RRC Filter Taps</name>
+  <key>variable_rrc_filter_taps</key>
+  <import>from gnuradio.filter import firdes</import>
+  <var_make>
+self.$(id) = $(id) = firdes.root_raised_cosine($gain, $samp_rate, $sym_rate, $alpha, $ntaps)
+  </var_make>
+  <var_value>firdes.root_raised_cosine($gain, $samp_rate, $sym_rate, $alpha, $ntaps)</var_value>
+  <make></make>
+
+  <param>
+    <name>Gain</name>
+    <key>gain</key>
+    <value>1.0</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Sample Rate (Hz)</name>
+    <key>samp_rate</key>
+    <value>samp_rate</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Symbol Rate (Hz)</name>
+    <key>sym_rate</key>
+    <value></value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Excess BW</name>
+    <key>alpha</key>
+    <value>0.35</value>
+    <type>float</type>
+  </param>
+  <param>
+    <name>Num Taps</name>
+    <key>ntaps</key>
+    <value>11*sps</value>
+    <type>int</type>
+  </param>
+  <doc>
+    This is a convenience wrapper for calling firdes.root_raised_cosine(...).
+  </doc>
+</block>