diff --git a/tcp.grc b/tcp.grc
index fafae56..e50c78c 100644
--- a/tcp.grc
+++ b/tcp.grc
@@ -1075,7 +1075,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>0</value>
+      <value>1</value>
     </param>
     <param>
       <key>_coordinate</key>
@@ -1198,7 +1198,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>1</value>
+      <value>0</value>
     </param>
     <param>
       <key>fftsize</key>
diff --git a/top_block.py b/top_block.py
index 41ea3b1..890f791 100644
--- a/top_block.py
+++ b/top_block.py
@@ -2,7 +2,7 @@
 ##################################################
 # GNU Radio Python Flow Graph
 # Title: Top Block
-# Generated: Sun Apr 23 03:36:05 2017
+# Generated: Sun Apr 23 03:37:07 2017
 ##################################################
 
 if __name__ == '__main__':
@@ -18,13 +18,13 @@ if __name__ == '__main__':
 from PyQt4 import Qt
 from gnuradio import eng_notation
 from gnuradio import gr
-from gnuradio import qtgui
 from gnuradio.eng_option import eng_option
 from gnuradio.filter import firdes
 from grc_gnuradio import blks2 as grc_blks2
 from optparse import OptionParser
-import sip
+import osmosdr
 import sys
+import time
 
 
 class top_block(gr.top_block, Qt.QWidget):
@@ -60,41 +60,16 @@ class top_block(gr.top_block, Qt.QWidget):
         ##################################################
         # Blocks
         ##################################################
-        self.qtgui_waterfall_sink_x_0 = qtgui.waterfall_sink_c(
-        	1024, #size
-        	firdes.WIN_BLACKMAN_hARRIS, #wintype
-        	0, #fc
-        	samp_rate, #bw
-        	"", #name
-                1 #number of inputs
-        )
-        self.qtgui_waterfall_sink_x_0.set_update_time(0.10)
-        self.qtgui_waterfall_sink_x_0.enable_grid(False)
-        
-        if not True:
-          self.qtgui_waterfall_sink_x_0.disable_legend()
-        
-        if complex == type(float()):
-          self.qtgui_waterfall_sink_x_0.set_plot_pos_half(not True)
-        
-        labels = ["", "", "", "", "",
-                  "", "", "", "", ""]
-        colors = [0, 0, 0, 0, 0,
-                  0, 0, 0, 0, 0]
-        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
-                  1.0, 1.0, 1.0, 1.0, 1.0]
-        for i in xrange(1):
-            if len(labels[i]) == 0:
-                self.qtgui_waterfall_sink_x_0.set_line_label(i, "Data {0}".format(i))
-            else:
-                self.qtgui_waterfall_sink_x_0.set_line_label(i, labels[i])
-            self.qtgui_waterfall_sink_x_0.set_color_map(i, colors[i])
-            self.qtgui_waterfall_sink_x_0.set_line_alpha(i, alphas[i])
-        
-        self.qtgui_waterfall_sink_x_0.set_intensity_range(-140, 10)
-        
-        self._qtgui_waterfall_sink_x_0_win = sip.wrapinstance(self.qtgui_waterfall_sink_x_0.pyqwidget(), Qt.QWidget)
-        self.top_layout.addWidget(self._qtgui_waterfall_sink_x_0_win)
+        self.osmosdr_sink_0 = osmosdr.sink( args="numchan=" + str(1) + " " + "hackrf=81320f" )
+        self.osmosdr_sink_0.set_sample_rate(samp_rate)
+        self.osmosdr_sink_0.set_center_freq(1575420000, 0)
+        self.osmosdr_sink_0.set_freq_corr(0, 0)
+        self.osmosdr_sink_0.set_gain(14, 0)
+        self.osmosdr_sink_0.set_if_gain(20, 0)
+        self.osmosdr_sink_0.set_bb_gain(20, 0)
+        self.osmosdr_sink_0.set_antenna("1", 0)
+        self.osmosdr_sink_0.set_bandwidth(0, 0)
+          
         self.blks2_tcp_source_0 = grc_blks2.tcp_source(
         	itemsize=gr.sizeof_gr_complex*1,
         	addr="127.0.0.1",
@@ -106,7 +81,7 @@ class top_block(gr.top_block, Qt.QWidget):
         ##################################################
         # Connections
         ##################################################
-        self.connect((self.blks2_tcp_source_0, 0), (self.qtgui_waterfall_sink_x_0, 0))    
+        self.connect((self.blks2_tcp_source_0, 0), (self.osmosdr_sink_0, 0))    
 
     def closeEvent(self, event):
         self.settings = Qt.QSettings("GNU Radio", "top_block")
@@ -118,7 +93,7 @@ class top_block(gr.top_block, Qt.QWidget):
 
     def set_samp_rate(self, samp_rate):
         self.samp_rate = samp_rate
-        self.qtgui_waterfall_sink_x_0.set_frequency_range(0, self.samp_rate)
+        self.osmosdr_sink_0.set_sample_rate(self.samp_rate)
 
 
 if __name__ == '__main__':