Added examples
diff --git a/examples/gsm_receiver_usrp_channelizer_python.py b/examples/gsm_receiver_usrp_channelizer_python.py
new file mode 100755
index 0000000..e769472
--- /dev/null
+++ b/examples/gsm_receiver_usrp_channelizer_python.py
@@ -0,0 +1,208 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: Gsm Receiver Usrp Channelizer Python
+# Generated: Sun Feb 9 12:46:36 2014
+##################################################
+
+from gnuradio import blocks
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio import uhd
+from gnuradio.eng_option import eng_option
+from gnuradio.filter import firdes
+from gnuradio.filter import pfb
+from optparse import OptionParser
+import gsm
+import time
+from numpy import fft
+
+
+class gsm_receiver_usrp_channelizer_python(gr.top_block):
+
+ def __init__(self, length=0.2, gain=25, channelizer_osr=1, fc=937e6, usrp_decim=4, fs=100e6):
+ gr.top_block.__init__(self, "Gsm Receiver Usrp Channelizer Python")
+
+ ##################################################
+ # Parameters
+ ##################################################
+ self.length = length
+ self.gain = gain
+ self.channelizer_osr = channelizer_osr
+ self.fc = fc
+ self.usrp_decim = usrp_decim
+ self.channels_num = int(round(fs/usrp_decim/200e3))
+ self.fs = fs
+
+ ##################################################
+ # Variables
+ ##################################################
+ self.samp_rate = 100e6/self.usrp_decim
+ self.samp_rate_channelizer_out = self.samp_rate/self.channels_num*channelizer_osr
+ self.freqs = fft.fftfreq(self.channels_num,1/self.samp_rate)+self.fc
+ self.arfcns = get_arfcns_from_freqs(self.freqs,"e")
+ print self.freqs
+ print self.arfcns
+
+ ##################################################
+ # Blocks
+ ##################################################
+ self.uhd_usrp_source_0 = uhd.usrp_source(
+ device_addr="addr=192.168.11.2",
+ stream_args=uhd.stream_args(
+ cpu_format="fc32",
+ otw_format="sc16",
+ channels=range(1),
+ ),
+ )
+ self.uhd_usrp_source_0.set_samp_rate(self.samp_rate)
+ self.uhd_usrp_source_0.set_center_freq(fc, 0)
+ self.uhd_usrp_source_0.set_gain(gain, 0)
+ self.pfb_channelizer_ccf_0 = pfb.channelizer_ccf(
+ self.channels_num,
+ (),
+ channelizer_osr,
+ 100)
+ self.pfb_channelizer_ccf_0.set_channel_map(([]))
+
+ self.blocks_head_0 = blocks.head(gr.sizeof_gr_complex*1, int(self.samp_rate*length))
+ self.gsm_bursts_printer_0 = gsm.bursts_printer()
+
+ self.connect((self.uhd_usrp_source_0, 0), (self.blocks_head_0, 0))
+ self.connect((self.blocks_head_0, 0), (self.pfb_channelizer_ccf_0, 0))
+
+ self.gsm_receiver_hier = {}
+
+ for ii in xrange(0,self.channels_num):
+ self.gsm_receiver_hier[ii] = gsm.receiver_hier(self.samp_rate_channelizer_out, 4, int(self.freqs[ii]/1e5))
+ self.connect((self.pfb_channelizer_ccf_0, ii), (self.gsm_receiver_hier[ii], 0))
+ self.msg_connect(self.gsm_receiver_hier[ii], "bursts", self.gsm_bursts_printer_0, "bursts")
+
+
+# QT sink close method reimplementation
+
+ def get_length(self):
+ return self.length
+
+ def set_length(self, length):
+ self.length = length
+
+ def get_gain(self):
+ return self.gain
+
+ def set_gain(self, gain):
+ self.gain = gain
+ self.uhd_usrp_source_0.set_gain(self.gain, 0)
+
+ def get_channelizer_osr(self):
+ return self.channelizer_osr
+
+ def set_channelizer_osr(self, channelizer_osr):
+ self.channelizer_osr = channelizer_osr
+ self.set_samp_rate_channelizer_out(self.samp_rate/self.channels_num*self.channelizer_osr)
+
+ def get_fc(self):
+ return self.fc
+
+ def set_fc(self, fc):
+ self.fc = fc
+ self.uhd_usrp_source_0.set_center_freq(self.fc, 0)
+
+ def get_usrp_decim(self):
+ return self.usrp_decim
+
+ def set_usrp_decim(self, usrp_decim):
+ self.usrp_decim = usrp_decim
+ self.set_samp_rate(100e6/self.usrp_decim)
+
+ def get_channels_num(self):
+ return self.channels_num
+
+ def set_channels_num(self, channels_num):
+ self.channels_num = channels_num
+ self.set_samp_rate_channelizer_out(self.samp_rate/self.channels_num*self.channelizer_osr)
+
+ def get_fs(self):
+ return self.fs
+
+ def set_fs(self, fs):
+ self.fs = fs
+
+ def get_samp_rate(self):
+ return self.samp_rate
+
+ def set_samp_rate(self, samp_rate):
+ self.samp_rate = samp_rate
+ self.set_samp_rate_channelizer_out(self.samp_rate/self.channels_num*self.channelizer_osr)
+ self.uhd_usrp_source_0.set_samp_rate(self.samp_rate)
+
+ def get_samp_rate_channelizer_out(self):
+ return self.samp_rate_channelizer_out
+
+ def set_samp_rate_channelizer_out(self, samp_rate_channelizer_out):
+ self.samp_rate_channelizer_out = samp_rate_channelizer_out
+
+def get_arfcns_from_freqs(freqs,region):
+ arfcns = {}
+ for ii in xrange(0,len(freqs)):
+ arfcns[ii] = get_arfcn_from_freq(freqs[ii],region)
+
+ return arfcns
+
+def get_arfcn_from_freq(freq,region):
+ freq = freq / 1e6
+ # GSM 450
+ if freq <= 450.6 + 0.2*(293 - 259) + 10:
+ arfcn = ((freq - (450.6 + 10)) / 0.2) + 259
+ # GSM 480
+ elif freq <= 479 + 0.2*(340 - 306) + 10:
+ arfcn = ((freq - (479 + 10)) / 0.2) + 306
+ # GSM 850
+ elif freq <= 824.2 + 0.2*(251 - 128) + 45:
+ arfcn = ((freq - (824.2 + 45)) / 0.2) + 128
+ #E/R-GSM 900
+ elif freq <= 890 + 0.2*(1023 - 1024) + 45:
+ arfcn = ((freq - (890 + 45)) / -0.2) + 955
+ # GSM 900
+ elif freq <= 890 + 0.2*124 + 45:
+ arfcn = (freq - (890 + 45)) / 0.2
+ else:
+ if region is "u":
+ if freq > 1850.2 + 0.2*(810 - 512) + 80:
+ arfcn = 0;
+ else:
+ arfcn = (freq - (1850.2 + 80) / 0.2) + 512
+ elif region is "e":
+ if freq > 1710.2 + 0.2*(885 - 512) + 95:
+ arfcn = 0;
+ else:
+ arfcn = (freq - (1710.2 + 95) / 0.2) + 512
+ else:
+ arfcn = 0
+
+ if arfcn<0:
+ return 255
+ else:
+ return round(arfcn)
+
+
+if __name__ == '__main__':
+ parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+ parser.add_option("", "--length", dest="length", type="eng_float", default=eng_notation.num_to_str(0.2),
+ help="Set length [default=%default]")
+ parser.add_option("", "--gain", dest="gain", type="intx", default=30,
+ help="Set gain [default=%default]")
+ parser.add_option("", "--channelizer-osr", dest="channelizer_osr", type="intx", default=2,
+ help="Set channelizer_osr [default=%default]")
+ parser.add_option("", "--fc", dest="fc", type="eng_float", default=eng_notation.num_to_str(937e6),
+ help="Set fc [default=%default]")
+ parser.add_option("", "--usrp-decim", dest="usrp_decim", type="intx", default=5,
+ help="Set usrp_decim [default=%default]")
+ parser.add_option("", "--fs", dest="fs", type="eng_float", default=eng_notation.num_to_str(100e6),
+ help="Set fs [default=%default]")
+ (options, args) = parser.parse_args()
+ tb = gsm_receiver_usrp_channelizer_python(length=options.length, gain=options.gain, channelizer_osr=options.channelizer_osr, fc=options.fc, usrp_decim=options.usrp_decim, fs=options.fs)
+ tb.start()
+ tb.wait()
+
+
diff --git a/examples/receiver_file.grc b/examples/receiver_file.grc
new file mode 100644
index 0000000..e277cd8
--- /dev/null
+++ b/examples/receiver_file.grc
@@ -0,0 +1,207 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+ <timestamp>Sat Feb 8 13:47:51 2014</timestamp>
+ <block>
+ <key>options</key>
+ <param>
+ <key>id</key>
+ <value>gsm_receiver_test</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>no_gui</value>
+ </param>
+ <param>
+ <key>category</key>
+ <value>Custom</value>
+ </param>
+ <param>
+ <key>run_options</key>
+ <value>run</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>_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>samp_rate</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>1625000/6*4</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(10, 170)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>blocks_file_source</key>
+ <param>
+ <key>id</key>
+ <value>blocks_file_source_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>file</key>
+ <value>/home/piotr/Odbiornik_gsm/reconstr_signal</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>repeat</key>
+ <value>False</value>
+ </param>
+ <param>
+ <key>vlen</key>
+ <value>1</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>_coordinate</key>
+ <value>(267, 220)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gsm_receiver_hier</key>
+ <param>
+ <key>id</key>
+ <value>gsm_receiver_hier_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>input_rate</key>
+ <value>samp_rate</value>
+ </param>
+ <param>
+ <key>osr</key>
+ <value>4</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>_coordinate</key>
+ <value>(539, 220)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>blocks_message_debug</key>
+ <param>
+ <key>id</key>
+ <value>blocks_message_debug_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>affinity</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(905, 249)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <connection>
+ <source_block_id>blocks_file_source_0</source_block_id>
+ <sink_block_id>gsm_receiver_hier_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>gsm_receiver_hier_0</source_block_id>
+ <sink_block_id>blocks_message_debug_0</sink_block_id>
+ <source_key>bursts</source_key>
+ <sink_key>print</sink_key>
+ </connection>
+</flow_graph>
diff --git a/examples/receiver_usrp.grc b/examples/receiver_usrp.grc
new file mode 100644
index 0000000..b3be775
--- /dev/null
+++ b/examples/receiver_usrp.grc
@@ -0,0 +1,984 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+ <timestamp>Sat Feb 8 22:28:34 2014</timestamp>
+ <block>
+ <key>options</key>
+ <param>
+ <key>id</key>
+ <value>gsm_receiver_usrp_test</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>wx_gui</value>
+ </param>
+ <param>
+ <key>category</key>
+ <value>Custom</value>
+ </param>
+ <param>
+ <key>run_options</key>
+ <value>run</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>_coordinate</key>
+ <value>(0, -1)</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>100e6/80</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(-1, 160)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>parameter</key>
+ <param>
+ <key>id</key>
+ <value>length</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value></value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>30</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>eng_float</value>
+ </param>
+ <param>
+ <key>short_id</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(486, 10)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value></value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>25</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>50</value>
+ </param>
+ <param>
+ <key>num_steps</key>
+ <value>100</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>(368, -1)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>fc</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value></value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>930</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>800</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>1900</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>(236, 0)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gsm_receiver_hier</key>
+ <param>
+ <key>id</key>
+ <value>gsm_receiver_hier_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>input_rate</key>
+ <value>samp_rate</value>
+ </param>
+ <param>
+ <key>osr</key>
+ <value>4</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>_coordinate</key>
+ <value>(523, 275)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>uhd_usrp_source</key>
+ <param>
+ <key>id</key>
+ <value>uhd_usrp_source_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>fc32</value>
+ </param>
+ <param>
+ <key>otw</key>
+ <value>sc16</value>
+ </param>
+ <param>
+ <key>stream_args</key>
+ <value></value>
+ </param>
+ <param>
+ <key>stream_chans</key>
+ <value>[]</value>
+ </param>
+ <param>
+ <key>dev_addr</key>
+ <value>addr=192.168.11.2</value>
+ </param>
+ <param>
+ <key>sync</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_rate</key>
+ <value>0.0</value>
+ </param>
+ <param>
+ <key>num_mboards</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>clock_source0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>nchan</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>samp_rate</value>
+ </param>
+ <param>
+ <key>center_freq0</key>
+ <value>fc*1e6</value>
+ </param>
+ <param>
+ <key>gain0</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>ant0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw0</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq1</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain1</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw1</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq2</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain2</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw2</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq3</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain3</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw3</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq4</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain4</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw4</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq5</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain5</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw5</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq6</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain6</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw6</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq7</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain7</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw7</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq8</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain8</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant8</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw8</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq9</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain9</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant9</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw9</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq10</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain10</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant10</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw10</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq11</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain11</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant11</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw11</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq12</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain12</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant12</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw12</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq13</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain13</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant13</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw13</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq14</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain14</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant14</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw14</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq15</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain15</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant15</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw15</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq16</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain16</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant16</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw16</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq17</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain17</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant17</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw17</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq18</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain18</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant18</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw18</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq19</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain19</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant19</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw19</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq20</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain20</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant20</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw20</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq21</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain21</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant21</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw21</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq22</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain22</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant22</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw22</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq23</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain23</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant23</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw23</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq24</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain24</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant24</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw24</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq25</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain25</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant25</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw25</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq26</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain26</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant26</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw26</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq27</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain27</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant27</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw27</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq28</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain28</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant28</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw28</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq29</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain29</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant29</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw29</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq30</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain30</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant30</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw30</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq31</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain31</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant31</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw31</key>
+ <value>0</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>_coordinate</key>
+ <value>(235, 251)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gsm_bursts_printer</key>
+ <param>
+ <key>id</key>
+ <value>gsm_bursts_printer_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>affinity</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(776, 287)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <connection>
+ <source_block_id>gsm_receiver_hier_0</source_block_id>
+ <sink_block_id>gsm_bursts_printer_0</sink_block_id>
+ <source_key>bursts</source_key>
+ <sink_key>bursts</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>uhd_usrp_source_0</source_block_id>
+ <sink_block_id>gsm_receiver_hier_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+</flow_graph>
diff --git a/examples/receiver_usrp_channelizer.grc b/examples/receiver_usrp_channelizer.grc
new file mode 100644
index 0000000..bae5c32
--- /dev/null
+++ b/examples/receiver_usrp_channelizer.grc
@@ -0,0 +1,1064 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+ <timestamp>Sun Feb 9 11:14:11 2014</timestamp>
+ <block>
+ <key>options</key>
+ <param>
+ <key>id</key>
+ <value>gsm_receiver_usrp_channelizer</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>wx_gui</value>
+ </param>
+ <param>
+ <key>category</key>
+ <value>Custom</value>
+ </param>
+ <param>
+ <key>run_options</key>
+ <value>run</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>_coordinate</key>
+ <value>(0, -1)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable</key>
+ <param>
+ <key>id</key>
+ <value>samp_rate2</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>samp_rate/25</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(-1, 160)</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>100e6/10</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(2, 223)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>parameter</key>
+ <param>
+ <key>id</key>
+ <value>length</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value></value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>30</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>eng_float</value>
+ </param>
+ <param>
+ <key>short_id</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(486, 10)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value></value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>25</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>50</value>
+ </param>
+ <param>
+ <key>num_steps</key>
+ <value>100</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>(368, -1)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>uhd_usrp_source</key>
+ <param>
+ <key>id</key>
+ <value>uhd_usrp_source_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>fc32</value>
+ </param>
+ <param>
+ <key>otw</key>
+ <value>sc16</value>
+ </param>
+ <param>
+ <key>stream_args</key>
+ <value></value>
+ </param>
+ <param>
+ <key>stream_chans</key>
+ <value>[]</value>
+ </param>
+ <param>
+ <key>dev_addr</key>
+ <value>addr=192.168.11.2</value>
+ </param>
+ <param>
+ <key>sync</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_rate</key>
+ <value>0.0</value>
+ </param>
+ <param>
+ <key>num_mboards</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>clock_source0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>clock_source7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>time_source7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>sd_spec7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>nchan</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>samp_rate</value>
+ </param>
+ <param>
+ <key>center_freq0</key>
+ <value>fc*1e6</value>
+ </param>
+ <param>
+ <key>gain0</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>ant0</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw0</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq1</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain1</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant1</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw1</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq2</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain2</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant2</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw2</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq3</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain3</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant3</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw3</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq4</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain4</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant4</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw4</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq5</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain5</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant5</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw5</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq6</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain6</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant6</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw6</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq7</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain7</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant7</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw7</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq8</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain8</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant8</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw8</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq9</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain9</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant9</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw9</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq10</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain10</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant10</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw10</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq11</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain11</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant11</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw11</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq12</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain12</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant12</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw12</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq13</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain13</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant13</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw13</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq14</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain14</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant14</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw14</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq15</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain15</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant15</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw15</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq16</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain16</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant16</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw16</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq17</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain17</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant17</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw17</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq18</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain18</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant18</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw18</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq19</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain19</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant19</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw19</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq20</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain20</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant20</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw20</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq21</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain21</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant21</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw21</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq22</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain22</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant22</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw22</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq23</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain23</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant23</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw23</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq24</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain24</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant24</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw24</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq25</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain25</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant25</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw25</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq26</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain26</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant26</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw26</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq27</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain27</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant27</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw27</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq28</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain28</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant28</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw28</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq29</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain29</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant29</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw29</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq30</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain30</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant30</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw30</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>center_freq31</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>gain31</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>ant31</key>
+ <value></value>
+ </param>
+ <param>
+ <key>bw31</key>
+ <value>0</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>_coordinate</key>
+ <value>(126, 251)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gsm_bursts_printer</key>
+ <param>
+ <key>id</key>
+ <value>gsm_bursts_printer_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>affinity</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(1019, 136)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>fc</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value></value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>957</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>800</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>1000</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>(236, 0)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gsm_receiver_hier</key>
+ <param>
+ <key>id</key>
+ <value>gsm_receiver_hier_0_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>input_rate</key>
+ <value>samp_rate2</value>
+ </param>
+ <param>
+ <key>osr</key>
+ <value>4</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>_coordinate</key>
+ <value>(755, 130)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>pfb_channelizer_ccf</key>
+ <param>
+ <key>id</key>
+ <value>pfb_channelizer_ccf_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>nchans</key>
+ <value>25</value>
+ </param>
+ <param>
+ <key>taps</key>
+ <value></value>
+ </param>
+ <param>
+ <key>osr</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>atten</key>
+ <value>100</value>
+ </param>
+ <param>
+ <key>ch_map</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>_coordinate</key>
+ <value>(373, 282)</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>pfb_channelizer_ccf_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>gsm_receiver_hier_0_0</source_block_id>
+ <sink_block_id>gsm_bursts_printer_0</sink_block_id>
+ <source_key>bursts</source_key>
+ <sink_key>bursts</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>pfb_channelizer_ccf_0</source_block_id>
+ <sink_block_id>gsm_receiver_hier_0_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+</flow_graph>