diff --git a/apps/fft-multi-decoder_auto_freqs_slider-update.grc b/apps/fft-multi-decoder_auto_freqs_slider-update.grc
index f10d783..6573564 100644
--- a/apps/fft-multi-decoder_auto_freqs_slider-update.grc
+++ b/apps/fft-multi-decoder_auto_freqs_slider-update.grc
@@ -1014,7 +1014,7 @@
     </param>
     <param>
       <key>value</key>
-      <value>11.3e6</value>
+      <value>14.3e6</value>
     </param>
   </block>
   <block>
@@ -1891,37 +1891,6 @@
       <value>fft_len</value>
     </param>
   </block>
-  <block>
-    <key>blocks_message_debug</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(2148, 870)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>blocks_message_debug_0</value>
-    </param>
-  </block>
   <block>
     <key>blocks_multiply_const_vxx</key>
     <param>
@@ -1946,7 +1915,7 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1821, 1401)</value>
+      <value>(1821, 1393)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -3080,7 +3049,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>debug</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -3500,7 +3469,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1709, 1146)</value>
+      <value>(1725, 1138)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -3629,7 +3598,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(1709, 1066)</value>
+      <value>(1725, 1058)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -6346,369 +6315,6 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
       <value>dB</value>
     </param>
   </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
-    <param>
-      <key>autoscale</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>axislabels</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>ctrlpanel</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>entags</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(1238, 1050)</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>grid</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_0</value>
-    </param>
-    <param>
-      <key>legend</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>alpha1</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color1</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>label1</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker1</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha10</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color10</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>label10</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker10</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style10</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width10</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha2</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>label2</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker2</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha3</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color3</key>
-      <value>"green"</value>
-    </param>
-    <param>
-      <key>label3</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker3</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha4</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color4</key>
-      <value>"black"</value>
-    </param>
-    <param>
-      <key>label4</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker4</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha5</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color5</key>
-      <value>"cyan"</value>
-    </param>
-    <param>
-      <key>label5</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker5</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha6</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
-    </param>
-    <param>
-      <key>label6</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker6</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha7</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color7</key>
-      <value>"yellow"</value>
-    </param>
-    <param>
-      <key>label7</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker7</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha8</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color8</key>
-      <value>"dark red"</value>
-    </param>
-    <param>
-      <key>label8</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker8</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>alpha9</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"dark green"</value>
-    </param>
-    <param>
-      <key>label9</key>
-      <value></value>
-    </param>
-    <param>
-      <key>marker9</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>style9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>nconnections</key>
-      <value>3</value>
-    </param>
-    <param>
-      <key>size</key>
-      <value>1024</value>
-    </param>
-    <param>
-      <key>srate</key>
-      <value>2375</value>
-    </param>
-    <param>
-      <key>tr_chan</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
-    </param>
-    <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_tag</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>ylabel</key>
-      <value>Amplitude</value>
-    </param>
-    <param>
-      <key>yunit</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-1</value>
-    </param>
-  </block>
   <block>
     <key>qtgui_tab_widget</key>
     <param>
@@ -7196,12 +6802,6 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     <source_key>rds</source_key>
     <sink_key>in8</sink_key>
   </connection>
-  <connection>
-    <source_block_id>multirds_max_freq_0</source_block_id>
-    <sink_block_id>blocks_message_debug_0</sink_block_id>
-    <source_key>out</source_key>
-    <sink_key>print</sink_key>
-  </connection>
   <connection>
     <source_block_id>multirds_max_freq_0</source_block_id>
     <sink_block_id>multirds_variable_setter_0</sink_block_id>
diff --git a/apps/ifft-RDS-decoder_hier-block.grc b/apps/ifft-RDS-decoder_hier-block.grc
index 7c37d66..441d0ea 100644
--- a/apps/ifft-RDS-decoder_hier-block.grc
+++ b/apps/ifft-RDS-decoder_hier-block.grc
@@ -615,6 +615,57 @@
       <value>1</value>
     </param>
   </block>
+  <block>
+    <key>blocks_keep_one_in_n</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1206, 335)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_keep_one_in_n_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>n</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+  </block>
   <block>
     <key>blocks_null_sink</key>
     <param>
@@ -2386,7 +2437,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>True</value>
+      <value>1</value>
     </param>
     <param>
       <key>_coordinate</key>
@@ -3266,6 +3317,12 @@
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
+  <connection>
+    <source_block_id>blocks_complex_to_real_0</source_block_id>
+    <sink_block_id>blocks_keep_one_in_n_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
   <connection>
     <source_block_id>blocks_complex_to_real_0</source_block_id>
     <sink_block_id>multirds_sync_decim_0</sink_block_id>
@@ -3290,6 +3347,18 @@
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
+  <connection>
+    <source_block_id>blocks_keep_one_in_n_0</source_block_id>
+    <sink_block_id>blocks_file_sink_0_0_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_keep_one_in_n_0</source_block_id>
+    <sink_block_id>digital_binary_slicer_fb_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
   <connection>
     <source_block_id>blocks_null_source_0</source_block_id>
     <sink_block_id>multirds_rds_decoder_3</sink_block_id>
diff --git a/apps/read_sync_decim.grc b/apps/read_sync_decim.grc
index 57b5d2f..c8b4e2c 100644
--- a/apps/read_sync_decim.grc
+++ b/apps/read_sync_decim.grc
@@ -344,7 +344,7 @@
     </param>
     <param>
       <key>file</key>
-      <value>/tmp/cr/rds_rec_all_1500news/sync_decim_out_5888.0</value>
+      <value>/tmp/cr/sync_decim_out_11221</value>
     </param>
     <param>
       <key>_coordinate</key>
@@ -777,7 +777,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>writeDB</key>
-      <value>False</value>
+      <value>True</value>
     </param>
   </block>
   <block>
@@ -836,7 +836,7 @@ class blk(gr.sync_block):  # other base classes are basic_block, decim_block, in
     </param>
     <param>
       <key>writeDB</key>
-      <value>False</value>
+      <value>True</value>
     </param>
   </block>
   <block>