diff --git a/examples/ofdm_rx.grc b/examples/ofdm_rx.grc
index aaf6921..47cfb81 100644
--- a/examples/ofdm_rx.grc
+++ b/examples/ofdm_rx.grc
@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='ASCII'?>
 <flow_graph>
-  <timestamp>Thu Apr  4 09:07:45 2013</timestamp>
+  <timestamp>Fri May  3 14:41:28 2013</timestamp>
   <block>
     <key>options</key>
     <param>
@@ -53,7 +53,7 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(293, 15)</value>
+      <value>(291, 45)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1232,52 +1232,6 @@
       <value>180</value>
     </param>
   </block>
-  <block>
-    <key>ieee802_1_ofdm_equalize_symbols</key>
-    <param>
-      <key>id</key>
-      <value>ieee802_1_ofdm_equalize_symbols_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>debug</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(465, 729)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>ieee802_1_ofdm_decode_signal</key>
-    <param>
-      <key>id</key>
-      <value>ieee802_1_ofdm_decode_signal_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>debug</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(825, 729)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
   <block>
     <key>variable_chooser</key>
     <param>
@@ -1512,22 +1466,96 @@
     </param>
   </block>
   <block>
-    <key>ieee802_1_ofdm_decode_mac</key>
+    <key>variable</key>
     <param>
       <key>id</key>
-      <value>ieee802_1_ofdm_decode_mac_0</value>
+      <value>window_size</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>debug</key>
-      <value>False</value>
+      <key>value</key>
+      <value>48</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1069, 729)</value>
+      <value>(562, 49)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sync_length</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>320 - 64</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(459, 46)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_chooser</key>
+    <param>
+      <key>id</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Channel</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>5.22e9</value>
+    </param>
+    <param>
+      <key>choices</key>
+      <value>[2412000000.0, 2417000000.0, 2422000000.0, 2427000000.0, 2432000000.0, 2437000000.0, 2442000000.0, 2447000000.0, 2452000000.0, 2457000000.0, 2462000000.0, 2467000000.0, 2472000000.0, 2484000000.0, 5170000000.0, 5180000000.0, 5190000000.0, 5200000000.0, 5210000000.0, 5220000000.0, 5230000000.0, 5240000000.0, 5260000000.0, 5280000000.0, 5300000000.0, 5320000000.0, 5500000000.0, 5520000000.0, 5540000000.0, 5560000000.0, 5580000000.0, 5600000000.0, 5620000000.0, 5640000000.0, 5660000000.0, 5680000000.0, 5700000000.0, 5745000000.0, 5765000000.0, 5785000000.0, 5805000000.0, 5825000000.0, 5860000000.0, 5870000000.0, 5880000000.0, 5890000000.0, 5900000000.0, 5910000000.0, 5920000000.0]</value>
+    </param>
+    <param>
+      <key>labels</key>
+      <value>['  1 | 2412.0 | 11g', '  2 | 2417.0 | 11g', '  3 | 2422.0 | 11g', '  4 | 2427.0 | 11g', '  5 | 2432.0 | 11g', '  6 | 2437.0 | 11g', '  7 | 2442.0 | 11g', '  8 | 2447.0 | 11g', '  9 | 2452.0 | 11g', ' 10 | 2457.0 | 11g', ' 11 | 2462.0 | 11g', ' 12 | 2467.0 | 11g', ' 13 | 2472.0 | 11g', ' 14 | 2484.0 | 11g', ' 34 | 5170.0 | 11a', ' 36 | 5180.0 | 11a', ' 38 | 5190.0 | 11a', ' 40 | 5200.0 | 11a', ' 42 | 5210.0 | 11a', ' 44 | 5220.0 | 11a', ' 46 | 5230.0 | 11a', ' 48 | 5240.0 | 11a', ' 52 | 5260.0 | 11a', ' 56 | 5280.0 | 11a', ' 58 | 5300.0 | 11a', ' 60 | 5320.0 | 11a', '100 | 5500.0 | 11a', '104 | 5520.0 | 11a', '108 | 5540.0 | 11a', '112 | 5560.0 | 11a', '116 | 5580.0 | 11a', '120 | 5600.0 | 11a', '124 | 5620.0 | 11a', '128 | 5640.0 | 11a', '132 | 5660.0 | 11a', '136 | 5680.0 | 11a', '140 | 5700.0 | 11a', '149 | 5745.0 | 11a', '153 | 5765.0 | 11a', '157 | 5785.0 | 11a', '161 | 5805.0 | 11a', '165 | 5825.0 | 11a', '172 | 5860.0 | 11p', '174 | 5870.0 | 11p', '176 | 5880.0 | 11p', '178 | 5890.0 | 11p', '180 | 5900.0 | 11p', '182 | 5910.0 | 11p', '184 | 5920.0 | 11p']</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>drop_down</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.RA_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value></value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(808, 20)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1593,22 +1621,22 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>ieee802_1_ofdm_equalize_symbols</key>
     <param>
       <key>id</key>
-      <value>window_size</value>
+      <value>ieee802_1_ofdm_equalize_symbols_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>48</value>
+      <key>debug</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(562, 49)</value>
+      <value>(465, 729)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1616,22 +1644,45 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>ieee802_1_ofdm_decode_signal</key>
     <param>
       <key>id</key>
-      <value>sync_length</value>
+      <value>ieee802_1_ofdm_decode_signal_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>320 - 64</value>
+      <key>debug</key>
+      <value>False</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(459, 46)</value>
+      <value>(825, 729)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>ieee802_1_ofdm_decode_mac</key>
+    <param>
+      <key>id</key>
+      <value>ieee802_1_ofdm_decode_mac_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>debug</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1069, 729)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1658,7 +1709,7 @@
     </param>
     <param>
       <key>max_samples</key>
-      <value>80 * 80</value>
+      <value>80 * 160</value>
     </param>
     <param>
       <key>min_plateau</key>
@@ -1673,57 +1724,6 @@
       <value>0</value>
     </param>
   </block>
-  <block>
-    <key>variable_chooser</key>
-    <param>
-      <key>id</key>
-      <value>freq</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Channel</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>5.22e9</value>
-    </param>
-    <param>
-      <key>choices</key>
-      <value>[2412000000.0, 2417000000.0, 2422000000.0, 2427000000.0, 2432000000.0, 2437000000.0, 2442000000.0, 2447000000.0, 2452000000.0, 2457000000.0, 2462000000.0, 2467000000.0, 2472000000.0, 2484000000.0, 5170000000.0, 5180000000.0, 5190000000.0, 5200000000.0, 5210000000.0, 5220000000.0, 5230000000.0, 5240000000.0, 5260000000.0, 5280000000.0, 5300000000.0, 5320000000.0, 5500000000.0, 5520000000.0, 5540000000.0, 5560000000.0, 5580000000.0, 5600000000.0, 5620000000.0, 5640000000.0, 5660000000.0, 5680000000.0, 5700000000.0, 5745000000.0, 5765000000.0, 5785000000.0, 5805000000.0, 5825000000.0, 5860000000.0, 5870000000.0, 5880000000.0, 5890000000.0, 5900000000.0, 5910000000.0, 5920000000.0]</value>
-    </param>
-    <param>
-      <key>labels</key>
-      <value>['  1 | 2412.0 | 11g', '  2 | 2417.0 | 11g', '  3 | 2422.0 | 11g', '  4 | 2427.0 | 11g', '  5 | 2432.0 | 11g', '  6 | 2437.0 | 11g', '  7 | 2442.0 | 11g', '  8 | 2447.0 | 11g', '  9 | 2452.0 | 11g', ' 10 | 2457.0 | 11g', ' 11 | 2462.0 | 11g', ' 12 | 2467.0 | 11g', ' 13 | 2472.0 | 11g', ' 14 | 2484.0 | 11g', ' 34 | 5170.0 | 11a', ' 36 | 5180.0 | 11a', ' 38 | 5190.0 | 11a', ' 40 | 5200.0 | 11a', ' 42 | 5210.0 | 11a', ' 44 | 5220.0 | 11a', ' 46 | 5230.0 | 11a', ' 48 | 5240.0 | 11a', ' 52 | 5260.0 | 11a', ' 56 | 5280.0 | 11a', ' 58 | 5300.0 | 11a', ' 60 | 5320.0 | 11a', '100 | 5500.0 | 11a', '104 | 5520.0 | 11a', '108 | 5540.0 | 11a', '112 | 5560.0 | 11a', '116 | 5580.0 | 11a', '120 | 5600.0 | 11a', '124 | 5620.0 | 11a', '128 | 5640.0 | 11a', '132 | 5660.0 | 11a', '136 | 5680.0 | 11a', '140 | 5700.0 | 11a', '149 | 5745.0 | 11a', '153 | 5765.0 | 11a', '157 | 5785.0 | 11a', '161 | 5805.0 | 11a', '165 | 5825.0 | 11a', '172 | 5860.0 | 11p', '174 | 5870.0 | 11p', '176 | 5880.0 | 11p', '178 | 5890.0 | 11p', '180 | 5900.0 | 11p', '182 | 5910.0 | 11p', '184 | 5920.0 | 11p']</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>drop_down</value>
-    </param>
-    <param>
-      <key>style</key>
-      <value>wx.RA_HORIZONTAL</value>
-    </param>
-    <param>
-      <key>grid_pos</key>
-      <value></value>
-    </param>
-    <param>
-      <key>notebook</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(808, 20)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
   <connection>
     <source_block_id>uhd_usrp_source_0</source_block_id>
     <sink_block_id>gr_skiphead_0</sink_block_id>
@@ -1850,12 +1850,6 @@
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
-  <connection>
-    <source_block_id>gr_divide_xx_0</source_block_id>
-    <sink_block_id>ieee802_1_ofdm_sync_short_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
   <connection>
     <source_block_id>gr_delay_0_0</source_block_id>
     <sink_block_id>ieee802_1_ofdm_sync_long_0</sink_block_id>
@@ -1874,22 +1868,28 @@
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
-  <connection>
-    <source_block_id>ieee802_1_ofdm_decode_mac_0</source_block_id>
-    <sink_block_id>ieee802_11_ofdm_parse_mac_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>in</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>ieee802_11_ofdm_parse_mac_0</source_block_id>
-    <sink_block_id>gr_socket_pdu_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>pdus</sink_key>
-  </connection>
   <connection>
     <source_block_id>gr_stream_to_vector_0</source_block_id>
     <sink_block_id>fft_vxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
+  <connection>
+    <source_block_id>ieee802_1_ofdm_decode_mac_0</source_block_id>
+    <sink_block_id>ieee802_11_ofdm_parse_mac_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>ieee802_11_ofdm_parse_mac_0</source_block_id>
+    <sink_block_id>gr_socket_pdu_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_divide_xx_0</source_block_id>
+    <sink_block_id>ieee802_1_ofdm_sync_short_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>1</sink_key>
+  </connection>
 </flow_graph>