Working on allowing fractional samples per symbol.

1 files changed, 430 insertions, 352 deletions

diff --git a/gnuradio-examples/grc/demod/pam_timing.grc b/gnuradio-examples/grc/demod/pam_timing.grc
index a0dc6642a..d51adb1f2 100644
--- a/gnuradio-examples/grc/demod/pam_timing.grc
+++ b/gnuradio-examples/grc/demod/pam_timing.grc
@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='ASCII'?>
 <flow_graph>
-  <timestamp>Wed Oct  7 20:47:05 2009</timestamp>
+  <timestamp>Thu Oct  8 21:29:27 2009</timestamp>
   <block>
     <key>options</key>
     <param>
@@ -57,29 +57,6 @@
     </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>320000</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(128, 9)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
     <key>gr_uchar_to_float</key>
     <param>
       <key>id</key>
@@ -339,22 +316,54 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_slider</key>
     <param>
       <key>id</key>
-      <value>rrctaps</value>
+      <value>noise_amp</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>label</key>
+      <value>Channel Noise</value>
+    </param>
+    <param>
       <key>value</key>
-      <value>firdes.root_raised_cosine(nfilts,1.0,1.0/(spb*nfilts), .35, 11*spb*nfilts)</value>
+      <value>0</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>1000</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value></value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(513, 679)</value>
+      <value>(168, 684)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -362,61 +371,65 @@
     </param>
   </block>
   <block>
-    <key>root_raised_cosine_filter</key>
+    <key>variable_slider</key>
     <param>
       <key>id</key>
-      <value>root_raised_cosine_filter_0_0</value>
+      <value>interpratio</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>interp_fir_filter_fff</value>
+      <key>label</key>
+      <value>Timing Offset</value>
     </param>
     <param>
-      <key>decim</key>
-      <value>1</value>
+      <key>value</key>
+      <value>1.00</value>
     </param>
     <param>
-      <key>interp</key>
-      <value>spb</value>
+      <key>min</key>
+      <value>0.9</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>2*spb</value>
+      <key>max</key>
+      <value>1.1</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>1.0</value>
+      <key>num_steps</key>
+      <value>1000</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1./spb</value>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>0.35</value>
+      <key>converver</key>
+      <value>float_converter</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>11*spb</value>
+      <key>grid_pos</key>
+      <value></value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(559, 303)</value>
+      <value>(40, 684)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
     </param>
   </block>
   <block>
-    <key>root_raised_cosine_filter</key>
+    <key>wxgui_scopesink2</key>
     <param>
       <key>id</key>
-      <value>root_raised_cosine_filter_0</value>
+      <value>wxgui_scopesink2_0_0_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -424,62 +437,47 @@
     </param>
     <param>
       <key>type</key>
-      <value>interp_fir_filter_fff</value>
-    </param>
-    <param>
-      <key>decim</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>interp</key>
-      <value>spb</value>
+      <value>float</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>2*spb</value>
+      <key>title</key>
+      <value>Scope Plot</value>
     </param>
     <param>
       <key>samp_rate</key>
-      <value>1.0</value>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>sym_rate</key>
-      <value>1./spb</value>
+      <key>v_scale</key>
+      <value>9</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>0.35</value>
+      <key>t_scale</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ntaps</key>
-      <value>11*spb</value>
+      <key>ac_couple</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(557, 140)</value>
+      <key>xy_mode</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>gr_float_to_complex</key>
-    <param>
-      <key>id</key>
-      <value>gr_float_to_complex_0</value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>grid_pos</key>
+      <value></value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>notebook</key>
+      <value>notebook_0,1</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(897, 272)</value>
+      <value>(1115, 961)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -487,42 +485,46 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>wxgui_scopesink2</key>
     <param>
       <key>id</key>
-      <value>noise_amp</value>
+      <value>wxgui_scopesink2_0_0_0_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Channel Noise</value>
+      <key>type</key>
+      <value>float</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>title</key>
+      <value>Scope Plot</value>
     </param>
     <param>
-      <key>min</key>
-      <value>0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>max</key>
-      <value>1.0</value>
+      <key>v_scale</key>
+      <value>1.25</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>1000</value>
+      <key>t_scale</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>ac_couple</key>
+      <value>False</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>xy_mode</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
       <key>grid_pos</key>
@@ -530,11 +532,11 @@
     </param>
     <param>
       <key>notebook</key>
-      <value></value>
+      <value>notebook_0,2</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(168, 684)</value>
+      <value>(1113, 844)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -542,65 +544,46 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>wxgui_scopesink2</key>
     <param>
       <key>id</key>
-      <value>nfilts</value>
+      <value>wxgui_scopesink2_0_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>32</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(435, 686)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_slider</key>
-    <param>
-      <key>id</key>
-      <value>beta</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>type</key>
+      <value>float</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Timing Beta</value>
+      <key>title</key>
+      <value>Error</value>
     </param>
     <param>
-      <key>value</key>
-      <value>20e-3</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>min</key>
-      <value>0.0</value>
+      <key>v_scale</key>
+      <value>.5</value>
     </param>
     <param>
-      <key>max</key>
-      <value>0.1</value>
+      <key>t_scale</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>1000</value>
+      <key>ac_couple</key>
+      <value>False</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>xy_mode</key>
+      <value>False</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
       <key>grid_pos</key>
@@ -608,66 +591,69 @@
     </param>
     <param>
       <key>notebook</key>
-      <value></value>
+      <value>notebook_0,0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(668, 5)</value>
+      <value>(1113, 724)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>180</value>
+      <value>0</value>
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>notebook</key>
     <param>
       <key>id</key>
-      <value>alpha</value>
+      <value>notebook_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Timing Alpha</value>
+      <key>style</key>
+      <value>wx.NB_TOP</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2</value>
+      <key>labels</key>
+      <value>['error', 'phase', 'freq', 'FFT', 'Costas error']</value>
     </param>
     <param>
-      <key>min</key>
-      <value>0</value>
+      <key>grid_pos</key>
+      <value></value>
     </param>
     <param>
-      <key>max</key>
-      <value>10</value>
+      <key>notebook</key>
+      <value></value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>1000</value>
+      <key>_coordinate</key>
+      <value>(729, 769)</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>id</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>value</key>
+      <value>32000</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(552, 4)</value>
+      <value>(128, 9)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -675,10 +661,10 @@
     </param>
   </block>
   <block>
-    <key>wxgui_scopesink2</key>
+    <key>gr_throttle</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0</value>
+      <value>gr_throttle_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -689,44 +675,55 @@
       <value>complex</value>
     </param>
     <param>
-      <key>title</key>
-      <value>Scope Plot</value>
+      <key>samples_per_second</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
     <param>
-      <key>v_scale</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1129, 462)</value>
     </param>
     <param>
-      <key>t_scale</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>gr_costas_loop_cc</key>
     <param>
-      <key>ac_couple</key>
-      <value>False</value>
+      <key>id</key>
+      <value>gr_costas_loop_cc_0</value>
     </param>
     <param>
-      <key>xy_mode</key>
+      <key>_enabled</key>
       <value>False</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>alpha</key>
+      <value>alpha_0</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>beta</key>
+      <value>beta_0</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>max_freq</key>
+      <value>5</value>
+    </param>
+    <param>
+      <key>min_freq</key>
+      <value>-5</value>
+    </param>
+    <param>
+      <key>order</key>
+      <value>4</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1133, 325)</value>
+      <value>(299, 453)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -792,7 +789,7 @@
     <key>variable</key>
     <param>
       <key>id</key>
-      <value>spb</value>
+      <value>rrctaps</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -800,11 +797,11 @@
     </param>
     <param>
       <key>value</key>
-      <value>4</value>
+      <value>firdes.root_raised_cosine(nfilts,1.0,1.0/(spb*nfilts), .35, int(11*spb*nfilts))</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(436, 752)</value>
+      <value>(513, 679)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -812,10 +809,10 @@
     </param>
   </block>
   <block>
-    <key>wxgui_fftsink2</key>
+    <key>root_raised_cosine_filter</key>
     <param>
       <key>id</key>
-      <value>wxgui_fftsink2_0</value>
+      <value>root_raised_cosine_filter_0_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -823,67 +820,39 @@
     </param>
     <param>
       <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>title</key>
-      <value>FFT Plot</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
-    </param>
-    <param>
-      <key>baseband_freq</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>y_per_div</key>
-      <value>10</value>
-    </param>
-    <param>
-      <key>y_divs</key>
-      <value>10</value>
-    </param>
-    <param>
-      <key>ref_level</key>
-      <value>50</value>
-    </param>
-    <param>
-      <key>ref_scale</key>
-      <value>2.0</value>
+      <value>interp_fir_filter_fff</value>
     </param>
     <param>
-      <key>fft_size</key>
-      <value>1024</value>
+      <key>decim</key>
+      <value>1</value>
     </param>
     <param>
-      <key>fft_rate</key>
-      <value>30</value>
+      <key>interp</key>
+      <value>spb_gen</value>
     </param>
     <param>
-      <key>peak_hold</key>
-      <value>False</value>
+      <key>gain</key>
+      <value>2*spb_gen</value>
     </param>
     <param>
-      <key>average</key>
-      <value>False</value>
+      <key>samp_rate</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>avg_alpha</key>
-      <value>0</value>
+      <key>sym_rate</key>
+      <value>1./spb_gen</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>alpha</key>
+      <value>0.35</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value>notebook_0,3</value>
+      <key>ntaps</key>
+      <value>11*spb_gen</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(517, 767)</value>
+      <value>(564, 301)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -894,7 +863,7 @@
     <key>variable_slider</key>
     <param>
       <key>id</key>
-      <value>interpratio</value>
+      <value>alpha</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -902,19 +871,19 @@
     </param>
     <param>
       <key>label</key>
-      <value>Timing Offset</value>
+      <value>Timing Alpha</value>
     </param>
     <param>
       <key>value</key>
-      <value>1.00</value>
+      <value>0</value>
     </param>
     <param>
       <key>min</key>
-      <value>0.9</value>
+      <value>0</value>
     </param>
     <param>
       <key>max</key>
-      <value>1.1</value>
+      <value>10</value>
     </param>
     <param>
       <key>num_steps</key>
@@ -938,18 +907,18 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(40, 684)</value>
+      <value>(552, 4)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>180</value>
+      <value>0</value>
     </param>
   </block>
   <block>
     <key>variable_slider</key>
     <param>
       <key>id</key>
-      <value>beta_0</value>
+      <value>beta</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -957,11 +926,11 @@
     </param>
     <param>
       <key>label</key>
-      <value>Freq Beta</value>
+      <value>Timing Beta</value>
     </param>
     <param>
       <key>value</key>
-      <value>0.001</value>
+      <value>0</value>
     </param>
     <param>
       <key>min</key>
@@ -969,7 +938,7 @@
     </param>
     <param>
       <key>max</key>
-      <value>0.01</value>
+      <value>0.1</value>
     </param>
     <param>
       <key>num_steps</key>
@@ -993,7 +962,7 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(919, 7)</value>
+      <value>(668, 5)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1008,7 +977,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>label</key>
@@ -1056,46 +1025,42 @@
     </param>
   </block>
   <block>
-    <key>wxgui_scopesink2</key>
+    <key>variable_slider</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0_0_0</value>
+      <value>beta_0</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>float</value>
+      <value>False</value>
     </param>
     <param>
-      <key>title</key>
-      <value>Scope Plot</value>
+      <key>label</key>
+      <value>Freq Beta</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>value</key>
+      <value>0.001</value>
     </param>
     <param>
-      <key>v_scale</key>
-      <value>9</value>
+      <key>min</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>t_scale</key>
-      <value>0</value>
+      <key>max</key>
+      <value>0.01</value>
     </param>
     <param>
-      <key>ac_couple</key>
-      <value>False</value>
+      <key>num_steps</key>
+      <value>1000</value>
     </param>
     <param>
-      <key>xy_mode</key>
-      <value>False</value>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>converver</key>
+      <value>float_converter</value>
     </param>
     <param>
       <key>grid_pos</key>
@@ -1103,22 +1068,22 @@
     </param>
     <param>
       <key>notebook</key>
-      <value>notebook_0,1</value>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1115, 961)</value>
+      <value>(919, 7)</value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>0</value>
+      <value>180</value>
     </param>
   </block>
   <block>
     <key>wxgui_scopesink2</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0_0_0_0</value>
+      <value>wxgui_scopesink2_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -1126,7 +1091,7 @@
     </param>
     <param>
       <key>type</key>
-      <value>float</value>
+      <value>complex</value>
     </param>
     <param>
       <key>title</key>
@@ -1138,7 +1103,7 @@
     </param>
     <param>
       <key>v_scale</key>
-      <value>1.25</value>
+      <value>0</value>
     </param>
     <param>
       <key>t_scale</key>
@@ -1162,11 +1127,11 @@
     </param>
     <param>
       <key>notebook</key>
-      <value>notebook_0,2</value>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1113, 844)</value>
+      <value>(1145, 258)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1177,7 +1142,7 @@
     <key>wxgui_scopesink2</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0_0</value>
+      <value>wxgui_scopesink2_0_0_1</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -1185,7 +1150,7 @@
     </param>
     <param>
       <key>type</key>
-      <value>float</value>
+      <value>complex</value>
     </param>
     <param>
       <key>title</key>
@@ -1221,11 +1186,11 @@
     </param>
     <param>
       <key>notebook</key>
-      <value>notebook_0,0</value>
+      <value>notebook_0,4</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1113, 724)</value>
+      <value>(1107, 533)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1233,58 +1198,96 @@
     </param>
   </block>
   <block>
-    <key>wxgui_scopesink2</key>
+    <key>variable</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0_0_1</value>
+      <value>spb_gen</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>value</key>
+      <value>4</value>
     </param>
     <param>
-      <key>title</key>
-      <value>Error</value>
+      <key>_coordinate</key>
+      <value>(119, 841)</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>gr_float_to_complex</key>
     <param>
-      <key>v_scale</key>
-      <value>.5</value>
+      <key>id</key>
+      <value>gr_float_to_complex_0</value>
     </param>
     <param>
-      <key>t_scale</key>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(904, 184)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>root_raised_cosine_filter</key>
     <param>
-      <key>ac_couple</key>
-      <value>False</value>
+      <key>id</key>
+      <value>root_raised_cosine_filter_0</value>
     </param>
     <param>
-      <key>xy_mode</key>
-      <value>False</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>num_inputs</key>
+      <key>type</key>
+      <value>interp_fir_filter_fff</value>
+    </param>
+    <param>
+      <key>decim</key>
       <value>1</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>interp</key>
+      <value>spb_gen</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value>notebook_0,4</value>
+      <key>gain</key>
+      <value>2*spb_gen</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>sym_rate</key>
+      <value>1./spb_gen</value>
+    </param>
+    <param>
+      <key>alpha</key>
+      <value>0.35</value>
+    </param>
+    <param>
+      <key>ntaps</key>
+      <value>11*spb_gen</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1111, 518)</value>
+      <value>(557, 140)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1292,34 +1295,22 @@
     </param>
   </block>
   <block>
-    <key>notebook</key>
+    <key>variable</key>
     <param>
       <key>id</key>
-      <value>notebook_0</value>
+      <value>spb</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.NB_TOP</value>
-    </param>
-    <param>
-      <key>labels</key>
-      <value>['error', 'phase', 'freq', 'FFT', 'Costas error']</value>
-    </param>
-    <param>
-      <key>grid_pos</key>
-      <value></value>
-    </param>
-    <param>
-      <key>notebook</key>
-      <value></value>
+      <key>value</key>
+      <value>4.01</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(729, 769)</value>
+      <value>(32, 842)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1334,7 +1325,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>noise_voltage</key>
@@ -1350,7 +1341,7 @@
     </param>
     <param>
       <key>taps</key>
-      <value>1.0 + 1.0j</value>
+      <value>1.0</value>
     </param>
     <param>
       <key>seed</key>
@@ -1358,7 +1349,38 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(65, 542)</value>
+      <value>(59, 543)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>blks2_pfb_arb_resampler_ccf</key>
+    <param>
+      <key>id</key>
+      <value>blks2_pfb_arb_resampler_ccf_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>rate</key>
+      <value>float(spb)/float(spb_gen)</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>firdes.low_pass(320, 320, 0.45, 0.1)</value>
+    </param>
+    <param>
+      <key>size</key>
+      <value>320</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(874, 374)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1409,69 +1431,101 @@
     </param>
   </block>
   <block>
-    <key>gr_throttle</key>
+    <key>wxgui_fftsink2</key>
     <param>
       <key>id</key>
-      <value>gr_throttle_0</value>
+      <value>wxgui_fftsink2_0</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>samples_per_second</key>
+      <key>title</key>
+      <value>FFT Plot</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
       <value>samp_rate</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>baseband_freq</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1129, 462)</value>
+      <key>y_per_div</key>
+      <value>10</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>y_divs</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>50</value>
+    </param>
+    <param>
+      <key>ref_scale</key>
+      <value>2.0</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>gr_costas_loop_cc</key>
     <param>
-      <key>id</key>
-      <value>gr_costas_loop_cc_0</value>
+      <key>grid_pos</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>notebook</key>
+      <value>notebook_0,3</value>
     </param>
     <param>
-      <key>alpha</key>
-      <value>alpha_0</value>
+      <key>_coordinate</key>
+      <value>(517, 767)</value>
     </param>
     <param>
-      <key>beta</key>
-      <value>beta_0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>max_freq</key>
-      <value>5</value>
+      <key>id</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>min_freq</key>
-      <value>-5</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>order</key>
-      <value>4</value>
+      <key>value</key>
+      <value>64</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(916, 473)</value>
+      <value>(435, 686)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1569,14 +1623,20 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>gr_float_to_complex_0</source_block_id>
-    <sink_block_id>gr_channel_model_0</sink_block_id>
+    <source_block_id>gr_channel_model_0</source_block_id>
+    <sink_block_id>wxgui_fftsink2_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>gr_channel_model_0</source_block_id>
-    <sink_block_id>wxgui_fftsink2_0</sink_block_id>
+    <sink_block_id>gr_costas_loop_cc_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_costas_loop_cc_0</source_block_id>
+    <sink_block_id>gr_pfb_clock_sync_ccf_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -1587,20 +1647,38 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
+    <source_block_id>gr_pfb_clock_sync_ccf_0</source_block_id>
+    <sink_block_id>gr_throttle_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
     <source_block_id>gr_channel_model_0</source_block_id>
     <sink_block_id>gr_pfb_clock_sync_ccf_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>gr_pfb_clock_sync_ccf_0</source_block_id>
-    <sink_block_id>gr_costas_loop_cc_0</sink_block_id>
+    <source_block_id>gr_float_to_complex_0</source_block_id>
+    <sink_block_id>blks2_pfb_arb_resampler_ccf_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>gr_costas_loop_cc_0</source_block_id>
-    <sink_block_id>gr_throttle_0</sink_block_id>
+    <source_block_id>blks2_pfb_arb_resampler_ccf_0</source_block_id>
+    <sink_block_id>gr_channel_model_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blks2_pfb_arb_resampler_ccf_0</source_block_id>
+    <sink_block_id>wxgui_scopesink2_0_0_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blks2_pfb_arb_resampler_ccf_0</source_block_id>
+    <sink_block_id>gr_pfb_clock_sync_ccf_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>