Merge pull request #321 from petterreinholdtsen/grgsm-livemon-headless

Provide grgsm_livemon_headless for running from scripts.

4 files changed, 2844 insertions, 0 deletions

diff --git a/apps/CMakeLists.txt b/apps/CMakeLists.txt
index 09e7257..2d29446 100644
--- a/apps/CMakeLists.txt
+++ b/apps/CMakeLists.txt
@@ -23,6 +23,7 @@ add_subdirectory(helpers)
 GR_PYTHON_INSTALL(
     PROGRAMS
     grgsm_livemon
+    grgsm_livemon_headless
     grgsm_scanner
     grgsm_decode
     DESTINATION bin
diff --git a/apps/README b/apps/README
index 39374ce..35bd08b 100644
--- a/apps/README
+++ b/apps/README
@@ -15,3 +15,19 @@ There are following helper programs for grgsm_decode program:
 * grgsm_channelize (old name: gsm_channelize.py) - splits wideband capture file into multiple files - each contain 
                   single GSM channel.
 
+* grgsm_livemon_headless - command line version of grgsm_livemon.  It
+                  is created by changing grgsm_livemon.grc like this:
+
+                   - Change Options block->Generate Options from 'QT
+                     GUI' to 'No GUI'.
+                   - Set Options block->Run Options to 'Run to
+                     Completion'.
+                   - Remove the blocks 'QT GUI Range' (gain_slider,
+                     fc_slider, ppm_slider) and the 'QT GUI Frequency
+                     Sink'.
+                   - Change all occurances of <param>_slider to
+                     <param> in the XML file.
+
+                  After these changes are done, build the
+                  grgsm_livemon_headless python code using the grcc
+                  compiler.
diff --git a/apps/grgsm_livemon_headless b/apps/grgsm_livemon_headless
new file mode 100644
index 0000000..dc36fca
--- /dev/null
+++ b/apps/grgsm_livemon_headless
@@ -0,0 +1,217 @@
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+##################################################
+# GNU Radio Python Flow Graph
+# Title: Gr-gsm Livemon
+# Author: Piotr Krysik
+# Description: Interactive monitor of a single C0 channel with analysis performed by Wireshark (command to run wireshark: sudo wireshark -k -f udp -Y gsmtap -i lo)
+# Generated: Mon Aug 28 10:09:07 2017
+##################################################
+
+from gnuradio import blocks
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio.eng_option import eng_option
+from gnuradio.filter import firdes
+from math import pi
+from optparse import OptionParser
+import grgsm
+import osmosdr
+import pmt
+import time
+
+
+class grgsm_livemon_headless(gr.top_block):
+
+    def __init__(self, args="", collector='localhost', collectorport='4729', fc=941.8e6, gain=30, osr=4, ppm=0, samp_rate=2000000.052982, serverport='4729', shiftoff=400e3):
+        gr.top_block.__init__(self, "Gr-gsm Livemon")
+
+        ##################################################
+        # Parameters
+        ##################################################
+        self.args = args
+        self.collector = collector
+        self.collectorport = collectorport
+        self.fc = fc
+        self.gain = gain
+        self.osr = osr
+        self.ppm = ppm
+        self.samp_rate = samp_rate
+        self.serverport = serverport
+        self.shiftoff = shiftoff
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + args )
+        self.rtlsdr_source_0.set_sample_rate(samp_rate)
+        self.rtlsdr_source_0.set_center_freq(fc-shiftoff, 0)
+        self.rtlsdr_source_0.set_freq_corr(ppm, 0)
+        self.rtlsdr_source_0.set_dc_offset_mode(2, 0)
+        self.rtlsdr_source_0.set_iq_balance_mode(2, 0)
+        self.rtlsdr_source_0.set_gain_mode(False, 0)
+        self.rtlsdr_source_0.set_gain(gain, 0)
+        self.rtlsdr_source_0.set_if_gain(20, 0)
+        self.rtlsdr_source_0.set_bb_gain(20, 0)
+        self.rtlsdr_source_0.set_antenna('', 0)
+        self.rtlsdr_source_0.set_bandwidth(250e3+abs(shiftoff), 0)
+          
+        self.gsm_sdcch8_demapper_0 = grgsm.gsm_sdcch8_demapper(
+            timeslot_nr=1,
+        )
+        self.gsm_receiver_0 = grgsm.receiver(4, ([0]), ([]), False)
+        self.gsm_message_printer_1 = grgsm.message_printer(pmt.intern(""), False,
+            False, False)
+        self.gsm_input_0 = grgsm.gsm_input(
+            ppm=ppm-int(ppm),
+            osr=4,
+            fc=fc,
+            samp_rate_in=samp_rate,
+        )
+        self.gsm_decryption_0 = grgsm.decryption(([]), 1)
+        self.gsm_control_channels_decoder_0_0 = grgsm.control_channels_decoder()
+        self.gsm_control_channels_decoder_0 = grgsm.control_channels_decoder()
+        self.gsm_clock_offset_control_0 = grgsm.clock_offset_control(fc-shiftoff, samp_rate, osr)
+        self.gsm_bcch_ccch_sdcch4_demapper_0 = grgsm.gsm_bcch_ccch_sdcch4_demapper(
+            timeslot_nr=0,
+        )
+        self.blocks_socket_pdu_0_1 = blocks.socket_pdu("UDP_CLIENT", collector, collectorport, 1500, False)
+        self.blocks_socket_pdu_0_0 = blocks.socket_pdu("UDP_SERVER", '127.0.0.1', serverport, 10000, False)
+        self.blocks_rotator_cc_0 = blocks.rotator_cc(-2*pi*shiftoff/samp_rate)
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.msg_connect((self.blocks_socket_pdu_0_0, 'pdus'), (self.gsm_message_printer_1, 'msgs'))    
+        self.msg_connect((self.gsm_bcch_ccch_sdcch4_demapper_0, 'bursts'), (self.gsm_control_channels_decoder_0, 'bursts'))    
+        self.msg_connect((self.gsm_clock_offset_control_0, 'ctrl'), (self.gsm_input_0, 'ctrl_in'))    
+        self.msg_connect((self.gsm_control_channels_decoder_0, 'msgs'), (self.blocks_socket_pdu_0_1, 'pdus'))    
+        self.msg_connect((self.gsm_control_channels_decoder_0_0, 'msgs'), (self.blocks_socket_pdu_0_1, 'pdus'))    
+        self.msg_connect((self.gsm_decryption_0, 'bursts'), (self.gsm_control_channels_decoder_0_0, 'bursts'))    
+        self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_bcch_ccch_sdcch4_demapper_0, 'bursts'))    
+        self.msg_connect((self.gsm_receiver_0, 'measurements'), (self.gsm_clock_offset_control_0, 'measurements'))    
+        self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_sdcch8_demapper_0, 'bursts'))    
+        self.msg_connect((self.gsm_sdcch8_demapper_0, 'bursts'), (self.gsm_decryption_0, 'bursts'))    
+        self.connect((self.blocks_rotator_cc_0, 0), (self.gsm_input_0, 0))    
+        self.connect((self.gsm_input_0, 0), (self.gsm_receiver_0, 0))    
+        self.connect((self.rtlsdr_source_0, 0), (self.blocks_rotator_cc_0, 0))    
+
+    def get_args(self):
+        return self.args
+
+    def set_args(self, args):
+        self.args = args
+
+    def get_collector(self):
+        return self.collector
+
+    def set_collector(self, collector):
+        self.collector = collector
+
+    def get_collectorport(self):
+        return self.collectorport
+
+    def set_collectorport(self, collectorport):
+        self.collectorport = collectorport
+
+    def get_fc(self):
+        return self.fc
+
+    def set_fc(self, fc):
+        self.fc = fc
+        self.rtlsdr_source_0.set_center_freq(self.fc-self.shiftoff, 0)
+        self.gsm_input_0.set_fc(self.fc)
+
+    def get_gain(self):
+        return self.gain
+
+    def set_gain(self, gain):
+        self.gain = gain
+        self.rtlsdr_source_0.set_gain(self.gain, 0)
+
+    def get_osr(self):
+        return self.osr
+
+    def set_osr(self, osr):
+        self.osr = osr
+
+    def get_ppm(self):
+        return self.ppm
+
+    def set_ppm(self, ppm):
+        self.ppm = ppm
+        self.rtlsdr_source_0.set_freq_corr(self.ppm, 0)
+        self.gsm_input_0.set_ppm(self.ppm-int(self.ppm))
+
+    def get_samp_rate(self):
+        return self.samp_rate
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.rtlsdr_source_0.set_sample_rate(self.samp_rate)
+        self.gsm_input_0.set_samp_rate_in(self.samp_rate)
+        self.blocks_rotator_cc_0.set_phase_inc(-2*pi*self.shiftoff/self.samp_rate)
+
+    def get_serverport(self):
+        return self.serverport
+
+    def set_serverport(self, serverport):
+        self.serverport = serverport
+
+    def get_shiftoff(self):
+        return self.shiftoff
+
+    def set_shiftoff(self, shiftoff):
+        self.shiftoff = shiftoff
+        self.rtlsdr_source_0.set_center_freq(self.fc-self.shiftoff, 0)
+        self.rtlsdr_source_0.set_bandwidth(250e3+abs(self.shiftoff), 0)
+        self.blocks_rotator_cc_0.set_phase_inc(-2*pi*self.shiftoff/self.samp_rate)
+
+
+def argument_parser():
+    description = 'Interactive monitor of a single C0 channel with analysis performed by Wireshark (command to run wireshark: sudo wireshark -k -f udp -Y gsmtap -i lo)'
+    parser = OptionParser(usage="%prog: [options]", option_class=eng_option, description=description)
+    parser.add_option(
+        "", "--args", dest="args", type="string", default="",
+        help="Set Device Arguments [default=%default]")
+    parser.add_option(
+        "", "--collector", dest="collector", type="string", default='localhost',
+        help="Set IP or DNS name of collector point [default=%default]")
+    parser.add_option(
+        "", "--collectorport", dest="collectorport", type="string", default='4729',
+        help="Set UDP port number of collector [default=%default]")
+    parser.add_option(
+        "-f", "--fc", dest="fc", type="eng_float", default=eng_notation.num_to_str(941.8e6),
+        help="Set GSM channel's central frequency [default=%default]")
+    parser.add_option(
+        "-g", "--gain", dest="gain", type="eng_float", default=eng_notation.num_to_str(30),
+        help="Set gain [default=%default]")
+    parser.add_option(
+        "", "--osr", dest="osr", type="intx", default=4,
+        help="Set OverSampling Ratio [default=%default]")
+    parser.add_option(
+        "-p", "--ppm", dest="ppm", type="eng_float", default=eng_notation.num_to_str(0),
+        help="Set ppm [default=%default]")
+    parser.add_option(
+        "-s", "--samp-rate", dest="samp_rate", type="eng_float", default=eng_notation.num_to_str(2000000.052982),
+        help="Set samp_rate [default=%default]")
+    parser.add_option(
+        "", "--serverport", dest="serverport", type="string", default='4729',
+        help="Set UDP server listening port [default=%default]")
+    parser.add_option(
+        "-o", "--shiftoff", dest="shiftoff", type="eng_float", default=eng_notation.num_to_str(400e3),
+        help="Set Frequency Shiftoff [default=%default]")
+    return parser
+
+
+def main(top_block_cls=grgsm_livemon_headless, options=None):
+    if options is None:
+        options, _ = argument_parser().parse_args()
+
+    tb = top_block_cls(args=options.args, collector=options.collector, collectorport=options.collectorport, fc=options.fc, gain=options.gain, osr=options.osr, ppm=options.ppm, samp_rate=options.samp_rate, serverport=options.serverport, shiftoff=options.shiftoff)
+    tb.start()
+    tb.wait()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/apps/grgsm_livemon_headless.grc b/apps/grgsm_livemon_headless.grc
new file mode 100644
index 0000000..de39ad7
--- /dev/null
+++ b/apps/grgsm_livemon_headless.grc
@@ -0,0 +1,2610 @@
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.9'?>
+<flow_graph>
+  <timestamp>Sat Dec 13 10:49:59 2014</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>author</key>
+      <value>Piotr Krysik</value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>2280, 1024</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>description</key>
+      <value>Interactive monitor of a single C0 channel with analysis performed by Wireshark (command to run wireshark: sudo wireshark -k -f udp -Y gsmtap -i lo)</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(16, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>no_gui</value>
+    </param>
+    <param>
+      <key>hier_block_src_path</key>
+      <value>.:</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>grgsm_livemon_headless</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>qt_qss_theme</key>
+      <value></value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>run_command</key>
+      <value>{python} -u {filename}</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>run</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>thread_safe_setters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Gr-gsm Livemon</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(872, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>args</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Device Arguments</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>""</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_rotator_cc</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(256, 300)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_rotator_cc_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>phase_inc</key>
+      <value>-2*pi*shiftoff/samp_rate</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_socket_pdu</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1632, 295)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>host</key>
+      <value>127.0.0.1</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_socket_pdu_0_0</value>
+    </param>
+    <param>
+      <key>mtu</key>
+      <value>10000</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>port</key>
+      <value>serverport</value>
+    </param>
+    <param>
+      <key>tcp_no_delay</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>"UDP_SERVER"</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_socket_pdu</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1504, 295)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>host</key>
+      <value>collector</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_socket_pdu_0_1</value>
+    </param>
+    <param>
+      <key>mtu</key>
+      <value>1500</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>port</key>
+      <value>collectorport</value>
+    </param>
+    <param>
+      <key>tcp_no_delay</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>"UDP_CLIENT"</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1240, 7)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>collector</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>IP or DNS name of collector point</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>localhost</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1240, 95)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>collectorport</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>UDP port number of collector</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>4729</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(624, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>fc</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>GSM channel's central frequency</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>f</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>941.8e6</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(552, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>g</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>30</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_bcch_ccch_sdcch4_demapper</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(920, 284)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_bcch_ccch_sdcch4_demapper_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>timeslot_nr</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_clock_offset_control</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(552, 411)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_clock_offset_control_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>osr</key>
+      <value>osr</value>
+    </param>
+    <param>
+      <key>fc</key>
+      <value>fc-shiftoff</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_control_channels_decoder</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1264, 289)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_control_channels_decoder_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_control_channels_decoder</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>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1264, 345)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_control_channels_decoder_0_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_decryption</key>
+    <param>
+      <key>a5_version</key>
+      <value>1</value>
+    </param>
+    <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>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1104, 333)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_decryption_0</value>
+    </param>
+    <param>
+      <key>k_c</key>
+      <value>[]</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_input</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(488, 305)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_input_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>osr</key>
+      <value>4</value>
+    </param>
+    <param>
+      <key>fc</key>
+      <value>fc</value>
+    </param>
+    <param>
+      <key>ppm</key>
+      <value>ppm-int(ppm)</value>
+    </param>
+    <param>
+      <key>samp_rate_in</key>
+      <value>samp_rate</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_message_printer</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1776, 302)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_message_printer_1</value>
+    </param>
+    <param>
+      <key>prepend_frame_count</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>prepend_fnr</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>prepend_string</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>print_gsmtap_header</key>
+      <value>False</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_receiver</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>cell_allocation</key>
+      <value>[0]</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(672, 289)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_receiver_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>num_streams</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>osr</key>
+      <value>4</value>
+    </param>
+    <param>
+      <key>tseq_nums</key>
+      <value>[]</value>
+    </param>
+  </block>
+  <block>
+    <key>gsm_sdcch8_demapper</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>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(896, 340)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>gsm_sdcch8_demapper_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>timeslot_nr</key>
+      <value>1</value>
+    </param>
+  </block>
+  <block>
+    <key>import</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1016, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>import_0</value>
+    </param>
+    <param>
+      <key>import</key>
+      <value>from math import pi</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1088, 7)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>osr</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>OverSampling Ratio</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>intx</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>4</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(712, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>ppm</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>ppm</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>p</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>rtlsdr_source</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ant0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain0</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw0</key>
+      <value>250e3+abs(shiftoff)</value>
+    </param>
+    <param>
+      <key>dc_offset_mode0</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>corr0</key>
+      <value>ppm</value>
+    </param>
+    <param>
+      <key>freq0</key>
+      <value>fc-shiftoff</value>
+    </param>
+    <param>
+      <key>gain_mode0</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain0</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode0</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>gain0</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>ant10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain10</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq10</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode10</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain10</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain10</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant11</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain11</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq11</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode11</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain11</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain11</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant12</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain12</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq12</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode12</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain12</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain12</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant13</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain13</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq13</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode13</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain13</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain13</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant14</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain14</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq14</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode14</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain14</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain14</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant15</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain15</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq15</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode15</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain15</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain15</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant16</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain16</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq16</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode16</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain16</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain16</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant17</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain17</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq17</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode17</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain17</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain17</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant18</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain18</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq18</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode18</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain18</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain18</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant19</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain19</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq19</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode19</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain19</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain19</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain1</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq1</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode1</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>if_gain1</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain1</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant20</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain20</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq20</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode20</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain20</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain20</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant21</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain21</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq21</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode21</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain21</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain21</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant22</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain22</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq22</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode22</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain22</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain22</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant23</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain23</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq23</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode23</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain23</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain23</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant24</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain24</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq24</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode24</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain24</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain24</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant25</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain25</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq25</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode25</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain25</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain25</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant26</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain26</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq26</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode26</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain26</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain26</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant27</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain27</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq27</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode27</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain27</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain27</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant28</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain28</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq28</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode28</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain28</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain28</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant29</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain29</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq29</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode29</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain29</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain29</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain2</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq2</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode2</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>if_gain2</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain2</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant30</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain30</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq30</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode30</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain30</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain30</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant31</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain31</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq31</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode31</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain31</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain31</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain3</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq3</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode3</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>if_gain3</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain3</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain4</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq4</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode4</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>if_gain4</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain4</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain5</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq5</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode5</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain5</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain5</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain6</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq6</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode6</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain6</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain6</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain7</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq7</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode7</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain7</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain7</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain8</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq8</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode8</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain8</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain8</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ant9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bb_gain9</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>bw9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>dc_offset_mode9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>corr9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>freq9</key>
+      <value>100e6</value>
+    </param>
+    <param>
+      <key>gain_mode9</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>if_gain9</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>iq_balance_mode9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain9</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>args</key>
+      <value>args</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(8, 237)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>rtlsdr_source_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>clock_source0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>nchan</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>num_mboards</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fc32</value>
+    </param>
+    <param>
+      <key>sample_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>sync</key>
+      <value></value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(16, 115)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2000000.052982</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1400, 7)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>serverport</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>UDP server listening port</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>4729</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(784, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>shiftoff</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Frequency Shiftoff</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>o</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>400e3</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>blocks_rotator_cc_0</source_block_id>
+    <sink_block_id>gsm_input_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blocks_socket_pdu_0_0</source_block_id>
+    <sink_block_id>gsm_message_printer_1</sink_block_id>
+    <source_key>pdus</source_key>
+    <sink_key>msgs</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_bcch_ccch_sdcch4_demapper_0</source_block_id>
+    <sink_block_id>gsm_control_channels_decoder_0</sink_block_id>
+    <source_key>bursts</source_key>
+    <sink_key>bursts</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_clock_offset_control_0</source_block_id>
+    <sink_block_id>gsm_input_0</sink_block_id>
+    <source_key>ctrl</source_key>
+    <sink_key>ctrl_in</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_control_channels_decoder_0</source_block_id>
+    <sink_block_id>blocks_socket_pdu_0_1</sink_block_id>
+    <source_key>msgs</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_control_channels_decoder_0_0</source_block_id>
+    <sink_block_id>blocks_socket_pdu_0_1</sink_block_id>
+    <source_key>msgs</source_key>
+    <sink_key>pdus</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_decryption_0</source_block_id>
+    <sink_block_id>gsm_control_channels_decoder_0_0</sink_block_id>
+    <source_key>bursts</source_key>
+    <sink_key>bursts</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_input_0</source_block_id>
+    <sink_block_id>gsm_receiver_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_receiver_0</source_block_id>
+    <sink_block_id>gsm_bcch_ccch_sdcch4_demapper_0</sink_block_id>
+    <source_key>C0</source_key>
+    <sink_key>bursts</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_receiver_0</source_block_id>
+    <sink_block_id>gsm_sdcch8_demapper_0</sink_block_id>
+    <source_key>C0</source_key>
+    <sink_key>bursts</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_receiver_0</source_block_id>
+    <sink_block_id>gsm_clock_offset_control_0</sink_block_id>
+    <source_key>measurements</source_key>
+    <sink_key>measurements</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gsm_sdcch8_demapper_0</source_block_id>
+    <sink_block_id>gsm_decryption_0</sink_block_id>
+    <source_key>bursts</source_key>
+    <sink_key>bursts</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>rtlsdr_source_0</source_block_id>
+    <sink_block_id>blocks_rotator_cc_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>