Simulations Versuch von AM und SSB

7 files changed, 2621 insertions, 1 deletions

diff --git a/tests/Simulation/AM&DSB_SC/AM_Resiver.py b/tests/Simulation/AM&DSB_SC/AM_Resiver.py
new file mode 100755
index 0000000..e25d7de
--- /dev/null
+++ b/tests/Simulation/AM&DSB_SC/AM_Resiver.py
@@ -0,0 +1,374 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+#
+# SPDX-License-Identifier: GPL-3.0
+#
+# GNU Radio Python Flow Graph
+# Title: AM resiver
+# GNU Radio version: 3.8.2.0
+
+from distutils.version import StrictVersion
+
+if __name__ == '__main__':
+    import ctypes
+    import sys
+    if sys.platform.startswith('linux'):
+        try:
+            x11 = ctypes.cdll.LoadLibrary('libX11.so')
+            x11.XInitThreads()
+        except:
+            print("Warning: failed to XInitThreads()")
+
+from PyQt5 import Qt
+from gnuradio import qtgui
+from gnuradio.filter import firdes
+import sip
+from gnuradio import analog
+from gnuradio import blocks
+from gnuradio import filter
+from gnuradio import gr
+import sys
+import signal
+from argparse import ArgumentParser
+from gnuradio.eng_arg import eng_float, intx
+from gnuradio import eng_notation
+
+from gnuradio import qtgui
+
+class AM_Resiver(gr.top_block, Qt.QWidget):
+
+    def __init__(self):
+        gr.top_block.__init__(self, "AM resiver")
+        Qt.QWidget.__init__(self)
+        self.setWindowTitle("AM resiver")
+        qtgui.util.check_set_qss()
+        try:
+            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
+        except:
+            pass
+        self.top_scroll_layout = Qt.QVBoxLayout()
+        self.setLayout(self.top_scroll_layout)
+        self.top_scroll = Qt.QScrollArea()
+        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
+        self.top_scroll_layout.addWidget(self.top_scroll)
+        self.top_scroll.setWidgetResizable(True)
+        self.top_widget = Qt.QWidget()
+        self.top_scroll.setWidget(self.top_widget)
+        self.top_layout = Qt.QVBoxLayout(self.top_widget)
+        self.top_grid_layout = Qt.QGridLayout()
+        self.top_layout.addLayout(self.top_grid_layout)
+
+        self.settings = Qt.QSettings("GNU Radio", "AM_Resiver")
+
+        try:
+            if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+                self.restoreGeometry(self.settings.value("geometry").toByteArray())
+            else:
+                self.restoreGeometry(self.settings.value("geometry"))
+        except:
+            pass
+
+        ##################################################
+        # Variables
+        ##################################################
+        self.samp_rate = samp_rate = 768000
+        self.decim = decim = 16
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self.qtgui_time_sink_x_0_0_0_0 = qtgui.time_sink_f(
+            256, #size
+            samp_rate, #samp_rate
+            "Demodulated", #name
+            1 #number of inputs
+        )
+        self.qtgui_time_sink_x_0_0_0_0.set_update_time(0.10)
+        self.qtgui_time_sink_x_0_0_0_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0_0_0_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0_0_0_0.enable_tags(True)
+        self.qtgui_time_sink_x_0_0_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
+        self.qtgui_time_sink_x_0_0_0_0.enable_autoscale(False)
+        self.qtgui_time_sink_x_0_0_0_0.enable_grid(False)
+        self.qtgui_time_sink_x_0_0_0_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0_0_0_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0_0_0_0.enable_stem_plot(False)
+
+
+        labels = ['Signal 1', 'Signal 2', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0_0_0_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0_0_0_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0_0_0_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0_0_0_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0_0_0_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0_0_0_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0_0_0_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_0_0_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0_0_0_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_0_0_0_win)
+        self.qtgui_time_sink_x_0_0_0 = qtgui.time_sink_f(
+            256, #size
+            samp_rate, #samp_rate
+            "Demodulated nach Band Pass", #name
+            1 #number of inputs
+        )
+        self.qtgui_time_sink_x_0_0_0.set_update_time(0.10)
+        self.qtgui_time_sink_x_0_0_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0_0_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0_0_0.enable_tags(True)
+        self.qtgui_time_sink_x_0_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
+        self.qtgui_time_sink_x_0_0_0.enable_autoscale(False)
+        self.qtgui_time_sink_x_0_0_0.enable_grid(False)
+        self.qtgui_time_sink_x_0_0_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0_0_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0_0_0.enable_stem_plot(False)
+
+
+        labels = ['Signal 1', 'Signal 2', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0_0_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0_0_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0_0_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0_0_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0_0_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0_0_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0_0_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_0_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0_0_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_0_0_win)
+        self.qtgui_time_sink_x_0_0 = qtgui.time_sink_f(
+            1024, #size
+            samp_rate, #samp_rate
+            "Modulated", #name
+            1 #number of inputs
+        )
+        self.qtgui_time_sink_x_0_0.set_update_time(0.10)
+        self.qtgui_time_sink_x_0_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0_0.enable_tags(True)
+        self.qtgui_time_sink_x_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
+        self.qtgui_time_sink_x_0_0.enable_autoscale(False)
+        self.qtgui_time_sink_x_0_0.enable_grid(False)
+        self.qtgui_time_sink_x_0_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0_0.enable_stem_plot(False)
+
+
+        labels = ['Signal 1', 'Signal 2', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_0_win)
+        self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
+            1024, #size
+            samp_rate, #samp_rate
+            "Source", #name
+            1 #number of inputs
+        )
+        self.qtgui_time_sink_x_0.set_update_time(0.10)
+        self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0.enable_tags(True)
+        self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
+        self.qtgui_time_sink_x_0.enable_autoscale(True)
+        self.qtgui_time_sink_x_0.enable_grid(True)
+        self.qtgui_time_sink_x_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0.enable_stem_plot(False)
+
+
+        labels = ['Signal 1', 'Signal 2', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
+        self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_fcf(decim, firdes.low_pass(1,samp_rate,samp_rate/(2*decim), 2000), 48e3, samp_rate)
+        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, samp_rate,True)
+        self.blocks_repeat_1 = blocks.repeat(gr.sizeof_float*1, 16)
+        self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
+        self.blocks_multiply_const_vxx_0 = blocks.multiply_const_ff(0.8)
+        self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
+        self.blocks_add_const_vxx_0 = blocks.add_const_ff(1)
+        self.band_pass_filter_0 = filter.fir_filter_fff(
+            1,
+            firdes.band_pass(
+                1,
+                samp_rate,
+                500,
+                60000,
+                400,
+                firdes.WIN_HAMMING,
+                6.76))
+        self.analog_sig_source_x_0_0 = analog.sig_source_f(samp_rate, analog.GR_COS_WAVE, 48000, 1, 0, 0)
+        self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate, analog.GR_COS_WAVE, 48e3, 500e-3, 0, 0)
+        self.analog_agc_xx_0 = analog.agc_cc(625e-6, 1.0, 1.0)
+        self.analog_agc_xx_0.set_max_gain(65536)
+
+
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.analog_agc_xx_0, 0), (self.blocks_complex_to_mag_0, 0))
+        self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 1))
+        self.connect((self.analog_sig_source_x_0_0, 0), (self.blocks_repeat_1, 0))
+        self.connect((self.analog_sig_source_x_0_0, 0), (self.qtgui_time_sink_x_0, 0))
+        self.connect((self.band_pass_filter_0, 0), (self.qtgui_time_sink_x_0_0_0, 0))
+        self.connect((self.blocks_add_const_vxx_0, 0), (self.blocks_multiply_xx_0, 0))
+        self.connect((self.blocks_complex_to_mag_0, 0), (self.band_pass_filter_0, 0))
+        self.connect((self.blocks_complex_to_mag_0, 0), (self.qtgui_time_sink_x_0_0_0_0, 0))
+        self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_add_const_vxx_0, 0))
+        self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_throttle_0, 0))
+        self.connect((self.blocks_repeat_1, 0), (self.blocks_multiply_const_vxx_0, 0))
+        self.connect((self.blocks_throttle_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
+        self.connect((self.blocks_throttle_0, 0), (self.qtgui_time_sink_x_0_0, 0))
+        self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.analog_agc_xx_0, 0))
+
+
+    def closeEvent(self, event):
+        self.settings = Qt.QSettings("GNU Radio", "AM_Resiver")
+        self.settings.setValue("geometry", self.saveGeometry())
+        event.accept()
+
+    def get_samp_rate(self):
+        return self.samp_rate
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
+        self.analog_sig_source_x_0_0.set_sampling_freq(self.samp_rate)
+        self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, 500, 60000, 400, firdes.WIN_HAMMING, 6.76))
+        self.blocks_throttle_0.set_sample_rate(self.samp_rate)
+        self.freq_xlating_fir_filter_xxx_0.set_taps(firdes.low_pass(1,self.samp_rate,self.samp_rate/(2*self.decim), 2000))
+        self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
+        self.qtgui_time_sink_x_0_0.set_samp_rate(self.samp_rate)
+        self.qtgui_time_sink_x_0_0_0.set_samp_rate(self.samp_rate)
+        self.qtgui_time_sink_x_0_0_0_0.set_samp_rate(self.samp_rate)
+
+    def get_decim(self):
+        return self.decim
+
+    def set_decim(self, decim):
+        self.decim = decim
+        self.freq_xlating_fir_filter_xxx_0.set_taps(firdes.low_pass(1,self.samp_rate,self.samp_rate/(2*self.decim), 2000))
+
+
+
+
+
+def main(top_block_cls=AM_Resiver, options=None):
+
+    if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+        style = gr.prefs().get_string('qtgui', 'style', 'raster')
+        Qt.QApplication.setGraphicsSystem(style)
+    qapp = Qt.QApplication(sys.argv)
+
+    tb = top_block_cls()
+
+    tb.start()
+
+    tb.show()
+
+    def sig_handler(sig=None, frame=None):
+        Qt.QApplication.quit()
+
+    signal.signal(signal.SIGINT, sig_handler)
+    signal.signal(signal.SIGTERM, sig_handler)
+
+    timer = Qt.QTimer()
+    timer.start(500)
+    timer.timeout.connect(lambda: None)
+
+    def quitting():
+        tb.stop()
+        tb.wait()
+
+    qapp.aboutToQuit.connect(quitting)
+    qapp.exec_()
+
+if __name__ == '__main__':
+    main()
diff --git a/tests/Simulation/AM&DSB_SC/AM_Resiver_Transmitter.grc b/tests/Simulation/AM&DSB_SC/AM_Resiver_Transmitter.grc
new file mode 100644
index 0000000..b038a2e
--- /dev/null
+++ b/tests/Simulation/AM&DSB_SC/AM_Resiver_Transmitter.grc
@@ -0,0 +1,681 @@
+options:
+  parameters:
+    author: ''
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: AM_Resiver
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: AM resiver
+    window_size: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: decim
+  id: variable
+  parameters:
+    comment: ''
+    value: '16'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [272, 12.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '768000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 12]
+    rotation: 0
+    state: enabled
+- name: analog_agc_xx_0
+  id: analog_agc_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    gain: '1.0'
+    max_gain: '65536'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    rate: 625e-6
+    reference: '1.0'
+    type: complex
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1400, 276.0]
+    rotation: 0
+    state: true
+- name: analog_sig_source_x_0
+  id: analog_sig_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: 500e-3
+    comment: ''
+    freq: 48e3
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    phase: '0'
+    samp_rate: samp_rate
+    type: float
+    waveform: analog.GR_COS_WAVE
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [488, 332.0]
+    rotation: 0
+    state: true
+- name: analog_sig_source_x_0_0
+  id: analog_sig_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: '1'
+    comment: ''
+    freq: '48000'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    phase: '0'
+    samp_rate: samp_rate
+    type: float
+    waveform: analog.GR_COS_WAVE
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [16, 228.0]
+    rotation: 0
+    state: true
+- name: band_pass_filter_0
+  id: band_pass_filter
+  parameters:
+    affinity: ''
+    alias: ''
+    beta: '6.76'
+    comment: ''
+    decim: '1'
+    gain: '1'
+    high_cutoff_freq: '60000'
+    interp: '1'
+    low_cutoff_freq: '500'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samp_rate: samp_rate
+    type: fir_filter_fff
+    width: '400'
+    win: firdes.WIN_HAMMING
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1792, 244.0]
+    rotation: 0
+    state: true
+- name: blocks_add_const_vxx_0
+  id: blocks_add_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [600, 268.0]
+    rotation: 0
+    state: true
+- name: blocks_complex_to_mag_0
+  id: blocks_complex_to_mag
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1584, 304.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_vxx_0
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '0.8'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [400, 268.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_xx_0
+  id: blocks_multiply_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [752, 272.0]
+    rotation: 0
+    state: true
+- name: blocks_repeat_1
+  id: blocks_repeat
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    interp: '16'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [240, 268.0]
+    rotation: 0
+    state: true
+- name: blocks_throttle_0
+  id: blocks_throttle
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    ignoretag: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samples_per_second: samp_rate
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [896, 284.0]
+    rotation: 0
+    state: true
+- name: freq_xlating_fir_filter_xxx_0
+  id: freq_xlating_fir_filter_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    center_freq: 48e3
+    comment: ''
+    decim: decim
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samp_rate: samp_rate
+    taps: firdes.low_pass(1,samp_rate,samp_rate/(2*decim), 2000)
+    type: fcf
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1136, 276.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_sink_x_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'True'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'True'
+    grid: 'True'
+    gui_hint: ''
+    label1: Signal 1
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '"Source"'
+    nconnections: '1'
+    size: '1024'
+    srate: samp_rate
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [240, 108.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_sink_x_0_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label1: Signal 1
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '"Modulated"'
+    nconnections: '1'
+    size: '1024'
+    srate: samp_rate
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1088, 156.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_sink_x_0_0_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label1: Signal 1
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '"Demodulated nach Band Pass"'
+    nconnections: '1'
+    size: '256'
+    srate: samp_rate
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2000, 276.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_sink_x_0_0_0_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label1: Signal 1
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '"Demodulated"'
+    nconnections: '1'
+    size: '256'
+    srate: samp_rate
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1800, 460.0]
+    rotation: 0
+    state: true
+
+connections:
+- [analog_agc_xx_0, '0', blocks_complex_to_mag_0, '0']
+- [analog_sig_source_x_0, '0', blocks_multiply_xx_0, '1']
+- [analog_sig_source_x_0_0, '0', blocks_repeat_1, '0']
+- [analog_sig_source_x_0_0, '0', qtgui_time_sink_x_0, '0']
+- [band_pass_filter_0, '0', qtgui_time_sink_x_0_0_0, '0']
+- [blocks_add_const_vxx_0, '0', blocks_multiply_xx_0, '0']
+- [blocks_complex_to_mag_0, '0', band_pass_filter_0, '0']
+- [blocks_complex_to_mag_0, '0', qtgui_time_sink_x_0_0_0_0, '0']
+- [blocks_multiply_const_vxx_0, '0', blocks_add_const_vxx_0, '0']
+- [blocks_multiply_xx_0, '0', blocks_throttle_0, '0']
+- [blocks_repeat_1, '0', blocks_multiply_const_vxx_0, '0']
+- [blocks_throttle_0, '0', freq_xlating_fir_filter_xxx_0, '0']
+- [blocks_throttle_0, '0', qtgui_time_sink_x_0_0, '0']
+- [freq_xlating_fir_filter_xxx_0, '0', analog_agc_xx_0, '0']
+
+metadata:
+  file_format: 1
diff --git a/tests/Simulation/AM&DSB_SC/AM_Resiver_Transmitter.pdf b/tests/Simulation/AM&DSB_SC/AM_Resiver_Transmitter.pdf
new file mode 100644
index 0000000..fc61159
--- /dev/null
+++ b/tests/Simulation/AM&DSB_SC/AM_Resiver_Transmitter.pdf
diff --git a/tests/Simulation/AM&DSB_SC/SSB_Resiver_Transmitter.grc b/tests/Simulation/AM&DSB_SC/SSB_Resiver_Transmitter.grc
new file mode 100644
index 0000000..df9db74
--- /dev/null
+++ b/tests/Simulation/AM&DSB_SC/SSB_Resiver_Transmitter.grc
@@ -0,0 +1,890 @@
+options:
+  parameters:
+    author: Sara Halter
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: Simulation
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: '1'
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: 'SSB Simulation '
+    window_size: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: audio_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '32000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [280, 12.0]
+    rotation: 0
+    state: enabled
+- name: carrier_freq
+  id: variable
+  parameters:
+    comment: ''
+    value: '16000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [296, 84.0]
+    rotation: 0
+    state: enabled
+- name: decim
+  id: variable
+  parameters:
+    comment: ''
+    value: samp_rate/audio_rate
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [376, 12.0]
+    rotation: 0
+    state: enabled
+- name: reverse
+  id: variable_qtgui_chooser
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Sideband
+    label0: Upper
+    label1: Lower
+    label2: ''
+    label3: ''
+    label4: ''
+    labels: '[]'
+    num_opts: '2'
+    option0: '-1'
+    option1: '1'
+    option2: '2'
+    option3: '3'
+    option4: '4'
+    options: '[0, 1, 2]'
+    orient: Qt.QVBoxLayout
+    type: int
+    value: '1'
+    widget: combo_box
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [600, 12.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '256000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 12]
+    rotation: 0
+    state: enabled
+- name: samp_rate_1
+  id: variable
+  parameters:
+    comment: ''
+    value: '192000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 84.0]
+    rotation: 0
+    state: enabled
+- name: tuning
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: tuning
+    min_len: '200'
+    orient: Qt.Horizontal
+    rangeType: float
+    start: '48000'
+    step: '100'
+    stop: '58000'
+    value: '51500'
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [456, 12.0]
+    rotation: 0
+    state: true
+- name: analog_const_source_x_0
+  id: analog_const_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1744, 516.0]
+    rotation: 0
+    state: true
+- name: analog_sig_source_x_0
+  id: analog_sig_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: '1'
+    comment: ''
+    freq: '5000'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    phase: '0'
+    samp_rate: samp_rate
+    type: complex
+    waveform: analog.GR_TRI_WAVE
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [72, 284.0]
+    rotation: 0
+    state: true
+- name: analog_sig_source_x_0_0
+  id: analog_sig_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: '1'
+    comment: ''
+    freq: '1500'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    phase: '0'
+    samp_rate: audio_rate
+    type: float
+    waveform: analog.GR_COS_WAVE
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [656, 180.0]
+    rotation: 0
+    state: true
+- name: analog_sig_source_x_0_0_0
+  id: analog_sig_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: '1'
+    comment: ''
+    freq: '1500'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    phase: '0'
+    samp_rate: audio_rate
+    type: float
+    waveform: analog.GR_SIN_WAVE
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [664, 428.0]
+    rotation: 0
+    state: true
+- name: analog_sig_source_x_1
+  id: analog_sig_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: '1'
+    comment: ''
+    freq: '16000'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    phase: '0'
+    samp_rate: samp_rate_1
+    type: complex
+    waveform: analog.GR_SIN_WAVE
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1896, 356.0]
+    rotation: 0
+    state: true
+- name: band_pass_filter_0
+  id: band_pass_filter
+  parameters:
+    affinity: ''
+    alias: ''
+    beta: '6.76'
+    comment: ''
+    decim: '1'
+    gain: '1'
+    high_cutoff_freq: '19000'
+    interp: '1'
+    low_cutoff_freq: '16300'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samp_rate: samp_rate_1
+    type: fir_filter_ccf
+    width: '200'
+    win: firdes.WIN_HAMMING
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2352, 412.0]
+    rotation: 0
+    state: true
+- name: blocks_add_xx_0
+  id: blocks_add_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1200, 280.0]
+    rotation: 0
+    state: true
+- name: blocks_complex_to_float_0
+  id: blocks_complex_to_float
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [736, 328.0]
+    rotation: 0
+    state: true
+- name: blocks_float_to_complex_0
+  id: blocks_float_to_complex
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1928, 544.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_vxx_0
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: 100e-6
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [296, 324.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_vxx_0_0
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: 100e-3
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1312, 292.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_vxx_0_0_0
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1080, 404.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_vxx_0_0_1
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '10'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1592, 572.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_xx_0
+  id: blocks_multiply_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2176, 456.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_xx_0_0
+  id: blocks_multiply_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [928, 264.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_xx_0_0_0
+  id: blocks_multiply_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [936, 392.0]
+    rotation: 0
+    state: true
+- name: blocks_repeat_0
+  id: blocks_repeat
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    interp: '4'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1752, 572.0]
+    rotation: 0
+    state: true
+- name: blocks_throttle_0
+  id: blocks_throttle
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    ignoretag: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samples_per_second: '48000'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1408, 572.0]
+    rotation: 0
+    state: true
+- name: fosphor_glfw_sink_c_0
+  id: fosphor_glfw_sink_c
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    freq_center: '0'
+    freq_span: samp_rate
+    wintype: firdes.WIN_BLACKMAN_hARRIS
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2616, 596.0]
+    rotation: 0
+    state: true
+- name: freq_xlating_fir_filter_xxx_0
+  id: freq_xlating_fir_filter_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    center_freq: '0'
+    comment: ''
+    decim: '8'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samp_rate: samp_rate
+    taps: firdes.low_pass(1.0,samp_rate,3000,100)
+    type: ccc
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [480, 316.0]
+    rotation: 0
+    state: true
+- name: qtgui_freq_sink_x_0
+  id: qtgui_freq_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    average: '1.0'
+    axislabels: 'True'
+    bw: samp_rate
+    color1: '"blue"'
+    color10: '"dark blue"'
+    color2: '"red"'
+    color3: '"green"'
+    color4: '"black"'
+    color5: '"cyan"'
+    color6: '"magenta"'
+    color7: '"yellow"'
+    color8: '"dark red"'
+    color9: '"dark green"'
+    comment: ''
+    ctrlpanel: 'False'
+    fc: '0'
+    fftsize: '1024'
+    freqhalf: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '""'
+    nconnections: '1'
+    showports: 'False'
+    tr_chan: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_tag: '""'
+    type: float
+    units: dB
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    wintype: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1520, 352.0]
+    rotation: 0
+    state: true
+- name: qtgui_freq_sink_x_0_0
+  id: qtgui_freq_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    average: '1.0'
+    axislabels: 'True'
+    bw: samp_rate_1
+    color1: '"blue"'
+    color10: '"dark blue"'
+    color2: '"red"'
+    color3: '"green"'
+    color4: '"black"'
+    color5: '"cyan"'
+    color6: '"magenta"'
+    color7: '"yellow"'
+    color8: '"dark red"'
+    color9: '"dark green"'
+    comment: ''
+    ctrlpanel: 'False'
+    fc: '0'
+    fftsize: '2048'
+    freqhalf: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '""'
+    nconnections: '1'
+    showports: 'False'
+    tr_chan: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_tag: '""'
+    type: complex
+    units: dB
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    wintype: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2304, 272.0]
+    rotation: 0
+    state: true
+- name: qtgui_freq_sink_x_0_0_0
+  id: qtgui_freq_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    average: '1.0'
+    axislabels: 'True'
+    bw: samp_rate_1
+    color1: '"blue"'
+    color10: '"dark blue"'
+    color2: '"red"'
+    color3: '"green"'
+    color4: '"black"'
+    color5: '"cyan"'
+    color6: '"magenta"'
+    color7: '"yellow"'
+    color8: '"dark red"'
+    color9: '"dark green"'
+    comment: ''
+    ctrlpanel: 'False'
+    fc: '0'
+    fftsize: '2048'
+    freqhalf: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '""'
+    nconnections: '1'
+    showports: 'False'
+    tr_chan: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_tag: '""'
+    type: complex
+    units: dB
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    wintype: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2600, 472.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_sink_x_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label1: 'Signal '
+    label10: Signal 10
+    label2: "Tr\xE4ger"
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '"Modulated"'
+    nconnections: '1'
+    size: '1024'
+    srate: audio_rate
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1512, 212.0]
+    rotation: 0
+    state: true
+
+connections:
+- [analog_const_source_x_0, '0', blocks_float_to_complex_0, '0']
+- [analog_sig_source_x_0, '0', blocks_multiply_const_vxx_0, '0']
+- [analog_sig_source_x_0_0, '0', blocks_multiply_xx_0_0, '0']
+- [analog_sig_source_x_0_0_0, '0', blocks_multiply_xx_0_0_0, '1']
+- [analog_sig_source_x_1, '0', blocks_multiply_xx_0, '0']
+- [band_pass_filter_0, '0', fosphor_glfw_sink_c_0, '0']
+- [band_pass_filter_0, '0', qtgui_freq_sink_x_0_0_0, '0']
+- [blocks_add_xx_0, '0', blocks_multiply_const_vxx_0_0, '0']
+- [blocks_complex_to_float_0, '0', blocks_multiply_xx_0_0, '1']
+- [blocks_complex_to_float_0, '1', blocks_multiply_xx_0_0_0, '0']
+- [blocks_float_to_complex_0, '0', blocks_multiply_xx_0, '1']
+- [blocks_multiply_const_vxx_0, '0', freq_xlating_fir_filter_xxx_0, '0']
+- [blocks_multiply_const_vxx_0_0, '0', blocks_throttle_0, '0']
+- [blocks_multiply_const_vxx_0_0, '0', qtgui_freq_sink_x_0, '0']
+- [blocks_multiply_const_vxx_0_0, '0', qtgui_time_sink_x_0, '0']
+- [blocks_multiply_const_vxx_0_0_0, '0', blocks_add_xx_0, '1']
+- [blocks_multiply_const_vxx_0_0_1, '0', blocks_repeat_0, '0']
+- [blocks_multiply_xx_0, '0', band_pass_filter_0, '0']
+- [blocks_multiply_xx_0, '0', qtgui_freq_sink_x_0_0, '0']
+- [blocks_multiply_xx_0_0, '0', blocks_add_xx_0, '0']
+- [blocks_multiply_xx_0_0_0, '0', blocks_multiply_const_vxx_0_0_0, '0']
+- [blocks_repeat_0, '0', blocks_float_to_complex_0, '1']
+- [blocks_throttle_0, '0', blocks_multiply_const_vxx_0_0_1, '0']
+- [freq_xlating_fir_filter_xxx_0, '0', blocks_complex_to_float_0, '0']
+
+metadata:
+  file_format: 1
diff --git a/tests/Simulation/AM&DSB_SC/Simulation.py b/tests/Simulation/AM&DSB_SC/Simulation.py
new file mode 100755
index 0000000..86fa17d
--- /dev/null
+++ b/tests/Simulation/AM&DSB_SC/Simulation.py
@@ -0,0 +1,439 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+#
+# SPDX-License-Identifier: GPL-3.0
+#
+# GNU Radio Python Flow Graph
+# Title: SSB Simulation
+# Author: Sara Halter
+# GNU Radio version: 3.8.2.0
+
+from distutils.version import StrictVersion
+
+if __name__ == '__main__':
+    import ctypes
+    import sys
+    if sys.platform.startswith('linux'):
+        try:
+            x11 = ctypes.cdll.LoadLibrary('libX11.so')
+            x11.XInitThreads()
+        except:
+            print("Warning: failed to XInitThreads()")
+
+from PyQt5 import Qt
+from PyQt5.QtCore import QObject, pyqtSlot
+from gnuradio import qtgui
+from gnuradio.filter import firdes
+import sip
+from gnuradio import analog
+from gnuradio import blocks
+from gnuradio import filter
+from gnuradio import fosphor
+from gnuradio.fft import window
+from gnuradio import gr
+import sys
+import signal
+from argparse import ArgumentParser
+from gnuradio.eng_arg import eng_float, intx
+from gnuradio import eng_notation
+from gnuradio.qtgui import Range, RangeWidget
+
+from gnuradio import qtgui
+
+class Simulation(gr.top_block, Qt.QWidget):
+
+    def __init__(self):
+        gr.top_block.__init__(self, "SSB Simulation ")
+        Qt.QWidget.__init__(self)
+        self.setWindowTitle("SSB Simulation ")
+        qtgui.util.check_set_qss()
+        try:
+            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
+        except:
+            pass
+        self.top_scroll_layout = Qt.QVBoxLayout()
+        self.setLayout(self.top_scroll_layout)
+        self.top_scroll = Qt.QScrollArea()
+        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
+        self.top_scroll_layout.addWidget(self.top_scroll)
+        self.top_scroll.setWidgetResizable(True)
+        self.top_widget = Qt.QWidget()
+        self.top_scroll.setWidget(self.top_widget)
+        self.top_layout = Qt.QVBoxLayout(self.top_widget)
+        self.top_grid_layout = Qt.QGridLayout()
+        self.top_layout.addLayout(self.top_grid_layout)
+
+        self.settings = Qt.QSettings("GNU Radio", "Simulation")
+
+        try:
+            if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+                self.restoreGeometry(self.settings.value("geometry").toByteArray())
+            else:
+                self.restoreGeometry(self.settings.value("geometry"))
+        except:
+            pass
+
+        ##################################################
+        # Variables
+        ##################################################
+        self.samp_rate = samp_rate = 256000
+        self.audio_rate = audio_rate = 32000
+        self.tuning = tuning = 51500
+        self.samp_rate_1 = samp_rate_1 = 192000
+        self.reverse = reverse = 1
+        self.decim = decim = samp_rate/audio_rate
+        self.carrier_freq = carrier_freq = 16000
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self._tuning_range = Range(48000, 58000, 100, 51500, 200)
+        self._tuning_win = RangeWidget(self._tuning_range, self.set_tuning, 'tuning', "counter_slider", float)
+        self.top_grid_layout.addWidget(self._tuning_win)
+        # Create the options list
+        self._reverse_options = (-1, 1, )
+        # Create the labels list
+        self._reverse_labels = ('Upper', 'Lower', )
+        # Create the combo box
+        self._reverse_tool_bar = Qt.QToolBar(self)
+        self._reverse_tool_bar.addWidget(Qt.QLabel('Sideband' + ": "))
+        self._reverse_combo_box = Qt.QComboBox()
+        self._reverse_tool_bar.addWidget(self._reverse_combo_box)
+        for _label in self._reverse_labels: self._reverse_combo_box.addItem(_label)
+        self._reverse_callback = lambda i: Qt.QMetaObject.invokeMethod(self._reverse_combo_box, "setCurrentIndex", Qt.Q_ARG("int", self._reverse_options.index(i)))
+        self._reverse_callback(self.reverse)
+        self._reverse_combo_box.currentIndexChanged.connect(
+            lambda i: self.set_reverse(self._reverse_options[i]))
+        # Create the radio buttons
+        self.top_grid_layout.addWidget(self._reverse_tool_bar)
+        self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
+            1024, #size
+            audio_rate, #samp_rate
+            "Modulated", #name
+            1 #number of inputs
+        )
+        self.qtgui_time_sink_x_0.set_update_time(0.10)
+        self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0.enable_tags(True)
+        self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
+        self.qtgui_time_sink_x_0.enable_autoscale(False)
+        self.qtgui_time_sink_x_0.enable_grid(False)
+        self.qtgui_time_sink_x_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0.enable_stem_plot(False)
+
+
+        labels = ['Signal ', 'Träger', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
+        self.qtgui_freq_sink_x_0_0_0 = qtgui.freq_sink_c(
+            2048, #size
+            firdes.WIN_BLACKMAN_hARRIS, #wintype
+            0, #fc
+            samp_rate_1, #bw
+            "", #name
+            1
+        )
+        self.qtgui_freq_sink_x_0_0_0.set_update_time(0.10)
+        self.qtgui_freq_sink_x_0_0_0.set_y_axis(-140, 10)
+        self.qtgui_freq_sink_x_0_0_0.set_y_label('Relative Gain', 'dB')
+        self.qtgui_freq_sink_x_0_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
+        self.qtgui_freq_sink_x_0_0_0.enable_autoscale(False)
+        self.qtgui_freq_sink_x_0_0_0.enable_grid(False)
+        self.qtgui_freq_sink_x_0_0_0.set_fft_average(1.0)
+        self.qtgui_freq_sink_x_0_0_0.enable_axis_labels(True)
+        self.qtgui_freq_sink_x_0_0_0.enable_control_panel(False)
+
+
+
+        labels = ['', '', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "green", "black", "cyan",
+            "magenta", "yellow", "dark red", "dark green", "dark blue"]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_freq_sink_x_0_0_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_freq_sink_x_0_0_0.set_line_label(i, labels[i])
+            self.qtgui_freq_sink_x_0_0_0.set_line_width(i, widths[i])
+            self.qtgui_freq_sink_x_0_0_0.set_line_color(i, colors[i])
+            self.qtgui_freq_sink_x_0_0_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_freq_sink_x_0_0_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_0_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_0_0_win)
+        self.qtgui_freq_sink_x_0_0 = qtgui.freq_sink_c(
+            2048, #size
+            firdes.WIN_BLACKMAN_hARRIS, #wintype
+            0, #fc
+            samp_rate_1, #bw
+            "", #name
+            1
+        )
+        self.qtgui_freq_sink_x_0_0.set_update_time(0.10)
+        self.qtgui_freq_sink_x_0_0.set_y_axis(-140, 10)
+        self.qtgui_freq_sink_x_0_0.set_y_label('Relative Gain', 'dB')
+        self.qtgui_freq_sink_x_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
+        self.qtgui_freq_sink_x_0_0.enable_autoscale(False)
+        self.qtgui_freq_sink_x_0_0.enable_grid(False)
+        self.qtgui_freq_sink_x_0_0.set_fft_average(1.0)
+        self.qtgui_freq_sink_x_0_0.enable_axis_labels(True)
+        self.qtgui_freq_sink_x_0_0.enable_control_panel(False)
+
+
+
+        labels = ['', '', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "green", "black", "cyan",
+            "magenta", "yellow", "dark red", "dark green", "dark blue"]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_freq_sink_x_0_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_freq_sink_x_0_0.set_line_label(i, labels[i])
+            self.qtgui_freq_sink_x_0_0.set_line_width(i, widths[i])
+            self.qtgui_freq_sink_x_0_0.set_line_color(i, colors[i])
+            self.qtgui_freq_sink_x_0_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_freq_sink_x_0_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_0_win)
+        self.qtgui_freq_sink_x_0 = qtgui.freq_sink_f(
+            1024, #size
+            firdes.WIN_BLACKMAN_hARRIS, #wintype
+            0, #fc
+            samp_rate, #bw
+            "", #name
+            1
+        )
+        self.qtgui_freq_sink_x_0.set_update_time(0.10)
+        self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
+        self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
+        self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
+        self.qtgui_freq_sink_x_0.enable_autoscale(False)
+        self.qtgui_freq_sink_x_0.enable_grid(False)
+        self.qtgui_freq_sink_x_0.set_fft_average(1.0)
+        self.qtgui_freq_sink_x_0.enable_axis_labels(True)
+        self.qtgui_freq_sink_x_0.enable_control_panel(False)
+
+
+        self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
+
+        labels = ['', '', '', '', '',
+            '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ["blue", "red", "green", "black", "cyan",
+            "magenta", "yellow", "dark red", "dark green", "dark blue"]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+
+        for i in range(1):
+            if len(labels[i]) == 0:
+                self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win)
+        self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(8, firdes.low_pass(1.0,samp_rate,3000,100), 0, samp_rate)
+        self.fosphor_glfw_sink_c_0 = fosphor.glfw_sink_c()
+        self.fosphor_glfw_sink_c_0.set_fft_window(firdes.WIN_BLACKMAN_hARRIS)
+        self.fosphor_glfw_sink_c_0.set_frequency_range(0, samp_rate)
+        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, 48000,True)
+        self.blocks_repeat_0 = blocks.repeat(gr.sizeof_float*1, 4)
+        self.blocks_multiply_xx_0_0_0 = blocks.multiply_vff(1)
+        self.blocks_multiply_xx_0_0 = blocks.multiply_vff(1)
+        self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
+        self.blocks_multiply_const_vxx_0_0_1 = blocks.multiply_const_ff(10)
+        self.blocks_multiply_const_vxx_0_0_0 = blocks.multiply_const_ff(1)
+        self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_ff(100e-3)
+        self.blocks_multiply_const_vxx_0 = blocks.multiply_const_cc(100e-6)
+        self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
+        self.blocks_complex_to_float_0 = blocks.complex_to_float(1)
+        self.blocks_add_xx_0 = blocks.add_vff(1)
+        self.band_pass_filter_0 = filter.fir_filter_ccf(
+            1,
+            firdes.band_pass(
+                1,
+                samp_rate_1,
+                16300,
+                19000,
+                200,
+                firdes.WIN_HAMMING,
+                6.76))
+        self.analog_sig_source_x_1 = analog.sig_source_c(samp_rate_1, analog.GR_SIN_WAVE, 16000, 1, 0, 0)
+        self.analog_sig_source_x_0_0_0 = analog.sig_source_f(audio_rate, analog.GR_SIN_WAVE, 1500, 1, 0, 0)
+        self.analog_sig_source_x_0_0 = analog.sig_source_f(audio_rate, analog.GR_COS_WAVE, 1500, 1, 0, 0)
+        self.analog_sig_source_x_0 = analog.sig_source_c(samp_rate, analog.GR_TRI_WAVE, 5000, 1, 0, 0)
+        self.analog_const_source_x_0 = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 0)
+
+
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.analog_const_source_x_0, 0), (self.blocks_float_to_complex_0, 0))
+        self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_const_vxx_0, 0))
+        self.connect((self.analog_sig_source_x_0_0, 0), (self.blocks_multiply_xx_0_0, 0))
+        self.connect((self.analog_sig_source_x_0_0_0, 0), (self.blocks_multiply_xx_0_0_0, 1))
+        self.connect((self.analog_sig_source_x_1, 0), (self.blocks_multiply_xx_0, 0))
+        self.connect((self.band_pass_filter_0, 0), (self.fosphor_glfw_sink_c_0, 0))
+        self.connect((self.band_pass_filter_0, 0), (self.qtgui_freq_sink_x_0_0_0, 0))
+        self.connect((self.blocks_add_xx_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
+        self.connect((self.blocks_complex_to_float_0, 0), (self.blocks_multiply_xx_0_0, 1))
+        self.connect((self.blocks_complex_to_float_0, 1), (self.blocks_multiply_xx_0_0_0, 0))
+        self.connect((self.blocks_float_to_complex_0, 0), (self.blocks_multiply_xx_0, 1))
+        self.connect((self.blocks_multiply_const_vxx_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
+        self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.blocks_throttle_0, 0))
+        self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.qtgui_freq_sink_x_0, 0))
+        self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.qtgui_time_sink_x_0, 0))
+        self.connect((self.blocks_multiply_const_vxx_0_0_0, 0), (self.blocks_add_xx_0, 1))
+        self.connect((self.blocks_multiply_const_vxx_0_0_1, 0), (self.blocks_repeat_0, 0))
+        self.connect((self.blocks_multiply_xx_0, 0), (self.band_pass_filter_0, 0))
+        self.connect((self.blocks_multiply_xx_0, 0), (self.qtgui_freq_sink_x_0_0, 0))
+        self.connect((self.blocks_multiply_xx_0_0, 0), (self.blocks_add_xx_0, 0))
+        self.connect((self.blocks_multiply_xx_0_0_0, 0), (self.blocks_multiply_const_vxx_0_0_0, 0))
+        self.connect((self.blocks_repeat_0, 0), (self.blocks_float_to_complex_0, 1))
+        self.connect((self.blocks_throttle_0, 0), (self.blocks_multiply_const_vxx_0_0_1, 0))
+        self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blocks_complex_to_float_0, 0))
+
+
+    def closeEvent(self, event):
+        self.settings = Qt.QSettings("GNU Radio", "Simulation")
+        self.settings.setValue("geometry", self.saveGeometry())
+        event.accept()
+
+    def get_samp_rate(self):
+        return self.samp_rate
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.set_decim(self.samp_rate/self.audio_rate)
+        self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
+        self.freq_xlating_fir_filter_xxx_0.set_taps(firdes.low_pass(1.0,self.samp_rate,3000,100))
+        self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
+        self.fosphor_glfw_sink_c_0.set_frequency_range(0, self.samp_rate)
+
+    def get_audio_rate(self):
+        return self.audio_rate
+
+    def set_audio_rate(self, audio_rate):
+        self.audio_rate = audio_rate
+        self.set_decim(self.samp_rate/self.audio_rate)
+        self.analog_sig_source_x_0_0.set_sampling_freq(self.audio_rate)
+        self.analog_sig_source_x_0_0_0.set_sampling_freq(self.audio_rate)
+        self.qtgui_time_sink_x_0.set_samp_rate(self.audio_rate)
+
+    def get_tuning(self):
+        return self.tuning
+
+    def set_tuning(self, tuning):
+        self.tuning = tuning
+
+    def get_samp_rate_1(self):
+        return self.samp_rate_1
+
+    def set_samp_rate_1(self, samp_rate_1):
+        self.samp_rate_1 = samp_rate_1
+        self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate_1)
+        self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate_1, 16300, 19000, 200, firdes.WIN_HAMMING, 6.76))
+        self.qtgui_freq_sink_x_0_0.set_frequency_range(0, self.samp_rate_1)
+        self.qtgui_freq_sink_x_0_0_0.set_frequency_range(0, self.samp_rate_1)
+
+    def get_reverse(self):
+        return self.reverse
+
+    def set_reverse(self, reverse):
+        self.reverse = reverse
+        self._reverse_callback(self.reverse)
+
+    def get_decim(self):
+        return self.decim
+
+    def set_decim(self, decim):
+        self.decim = decim
+
+    def get_carrier_freq(self):
+        return self.carrier_freq
+
+    def set_carrier_freq(self, carrier_freq):
+        self.carrier_freq = carrier_freq
+
+
+
+
+
+def main(top_block_cls=Simulation, options=None):
+    if gr.enable_realtime_scheduling() != gr.RT_OK:
+        print("Error: failed to enable real-time scheduling.")
+
+    if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+        style = gr.prefs().get_string('qtgui', 'style', 'raster')
+        Qt.QApplication.setGraphicsSystem(style)
+    qapp = Qt.QApplication(sys.argv)
+
+    tb = top_block_cls()
+
+    tb.start()
+
+    tb.show()
+
+    def sig_handler(sig=None, frame=None):
+        Qt.QApplication.quit()
+
+    signal.signal(signal.SIGINT, sig_handler)
+    signal.signal(signal.SIGTERM, sig_handler)
+
+    timer = Qt.QTimer()
+    timer.start(500)
+    timer.timeout.connect(lambda: None)
+
+    def quitting():
+        tb.stop()
+        tb.wait()
+
+    qapp.aboutToQuit.connect(quitting)
+    qapp.exec_()
+
+if __name__ == '__main__':
+    main()
diff --git a/tests/Simulation/AM/AM.grc b/tests/Simulation/AM/AM.grc
index 2a40da6..db9525a 100644
--- a/tests/Simulation/AM/AM.grc
+++ b/tests/Simulation/AM/AM.grc
@@ -27,7 +27,7 @@ options:
     bus_sink: false
     bus_source: false
     bus_structure: null
-    coordinate: [8, 8]
+    coordinate: [16, 12.0]
     rotation: 0
     state: enabled
 
diff --git a/tests/Simulation/AM/Simluation.py b/tests/Simulation/AM/Simluation.py
new file mode 100755
index 0000000..e9986ee
--- /dev/null
+++ b/tests/Simulation/AM/Simluation.py
@@ -0,0 +1,236 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+#
+# SPDX-License-Identifier: GPL-3.0
+#
+# GNU Radio Python Flow Graph
+# Title: Simulation of a fading channel
+# Author: Naoki Pross
+# GNU Radio version: 3.8.2.0
+
+from distutils.version import StrictVersion
+
+if __name__ == '__main__':
+    import ctypes
+    import sys
+    if sys.platform.startswith('linux'):
+        try:
+            x11 = ctypes.cdll.LoadLibrary('libX11.so')
+            x11.XInitThreads()
+        except:
+            print("Warning: failed to XInitThreads()")
+
+from PyQt5 import Qt
+from gnuradio import qtgui
+from gnuradio.filter import firdes
+import sip
+from gnuradio import analog
+from gnuradio import blocks
+from gnuradio import fosphor
+from gnuradio.fft import window
+from gnuradio import gr
+import sys
+import signal
+from argparse import ArgumentParser
+from gnuradio.eng_arg import eng_float, intx
+from gnuradio import eng_notation
+
+from gnuradio import qtgui
+
+class Simluation(gr.top_block, Qt.QWidget):
+
+    def __init__(self):
+        gr.top_block.__init__(self, "Simulation of a fading channel")
+        Qt.QWidget.__init__(self)
+        self.setWindowTitle("Simulation of a fading channel")
+        qtgui.util.check_set_qss()
+        try:
+            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
+        except:
+            pass
+        self.top_scroll_layout = Qt.QVBoxLayout()
+        self.setLayout(self.top_scroll_layout)
+        self.top_scroll = Qt.QScrollArea()
+        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
+        self.top_scroll_layout.addWidget(self.top_scroll)
+        self.top_scroll.setWidgetResizable(True)
+        self.top_widget = Qt.QWidget()
+        self.top_scroll.setWidget(self.top_widget)
+        self.top_layout = Qt.QVBoxLayout(self.top_widget)
+        self.top_grid_layout = Qt.QGridLayout()
+        self.top_layout.addLayout(self.top_grid_layout)
+
+        self.settings = Qt.QSettings("GNU Radio", "Simluation")
+
+        try:
+            if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+                self.restoreGeometry(self.settings.value("geometry").toByteArray())
+            else:
+                self.restoreGeometry(self.settings.value("geometry"))
+        except:
+            pass
+
+        ##################################################
+        # Variables
+        ##################################################
+        self.samp_rate = samp_rate = 128e3
+        self.modulation_factor = modulation_factor = .7
+        self.carrier_freq = carrier_freq = 5e3
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
+            1024, #size
+            samp_rate, #samp_rate
+            "Demodulated AM signal", #name
+            2 #number of inputs
+        )
+        self.qtgui_time_sink_x_0.set_update_time(1e-1)
+        self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
+
+        self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
+
+        self.qtgui_time_sink_x_0.enable_tags(True)
+        self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_NORM, qtgui.TRIG_SLOPE_POS, 0.0, 1e-3, 0, "")
+        self.qtgui_time_sink_x_0.enable_autoscale(True)
+        self.qtgui_time_sink_x_0.enable_grid(True)
+        self.qtgui_time_sink_x_0.enable_axis_labels(True)
+        self.qtgui_time_sink_x_0.enable_control_panel(False)
+        self.qtgui_time_sink_x_0.enable_stem_plot(False)
+
+
+        labels = ['Original', 'Demodulated', 'Signal 3', 'Signal 4', 'Signal 5',
+            'Signal 6', 'Signal 7', 'Signal 8', 'Signal 9', 'Signal 10']
+        widths = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        colors = ['blue', 'red', 'green', 'black', 'cyan',
+            'magenta', 'yellow', 'dark red', 'dark green', 'dark blue']
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+            1.0, 1.0, 1.0, 1.0, 1.0]
+        styles = [1, 1, 1, 1, 1,
+            1, 1, 1, 1, 1]
+        markers = [-1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1]
+
+
+        for i in range(2):
+            if len(labels[i]) == 0:
+                self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
+            self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
+            self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
+
+        self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win)
+        self.fosphor_glfw_sink_c_0 = fosphor.glfw_sink_c()
+        self.fosphor_glfw_sink_c_0.set_fft_window(firdes.WIN_BLACKMAN_hARRIS)
+        self.fosphor_glfw_sink_c_0.set_frequency_range(0, samp_rate)
+        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate * 2,True)
+        self.blocks_multiply_xx_1 = blocks.multiply_vcc(1)
+        self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
+        self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
+        self.blocks_add_xx_0 = blocks.add_vcc(1)
+        self.analog_sig_source_x_1 = analog.sig_source_c(samp_rate, analog.GR_SQR_WAVE, 50, 1, 0, 0)
+        self.analog_sig_source_x_0 = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, carrier_freq, 1, 0, 0)
+        self.analog_const_source_x_1 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, modulation_factor)
+        self.analog_const_source_x_0 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, 1)
+        self.analog_am_demod_cf_0 = analog.am_demod_cf(
+        	channel_rate=samp_rate,
+        	audio_decim=1,
+        	audio_pass=5000,
+        	audio_stop=5500,
+        )
+
+
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.analog_am_demod_cf_0, 0), (self.qtgui_time_sink_x_0, 1))
+        self.connect((self.analog_const_source_x_0, 0), (self.blocks_add_xx_0, 1))
+        self.connect((self.analog_const_source_x_1, 0), (self.blocks_multiply_xx_1, 0))
+        self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 1))
+        self.connect((self.analog_sig_source_x_1, 0), (self.blocks_multiply_xx_1, 1))
+        self.connect((self.blocks_add_xx_0, 0), (self.blocks_complex_to_real_0, 0))
+        self.connect((self.blocks_add_xx_0, 0), (self.blocks_multiply_xx_0, 0))
+        self.connect((self.blocks_complex_to_real_0, 0), (self.qtgui_time_sink_x_0, 0))
+        self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_throttle_0, 0))
+        self.connect((self.blocks_multiply_xx_1, 0), (self.blocks_add_xx_0, 0))
+        self.connect((self.blocks_throttle_0, 0), (self.analog_am_demod_cf_0, 0))
+        self.connect((self.blocks_throttle_0, 0), (self.fosphor_glfw_sink_c_0, 0))
+
+
+    def closeEvent(self, event):
+        self.settings = Qt.QSettings("GNU Radio", "Simluation")
+        self.settings.setValue("geometry", self.saveGeometry())
+        event.accept()
+
+    def get_samp_rate(self):
+        return self.samp_rate
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
+        self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate)
+        self.blocks_throttle_0.set_sample_rate(self.samp_rate * 2)
+        self.fosphor_glfw_sink_c_0.set_frequency_range(0, self.samp_rate)
+        self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
+
+    def get_modulation_factor(self):
+        return self.modulation_factor
+
+    def set_modulation_factor(self, modulation_factor):
+        self.modulation_factor = modulation_factor
+        self.analog_const_source_x_1.set_offset(self.modulation_factor)
+
+    def get_carrier_freq(self):
+        return self.carrier_freq
+
+    def set_carrier_freq(self, carrier_freq):
+        self.carrier_freq = carrier_freq
+        self.analog_sig_source_x_0.set_frequency(self.carrier_freq)
+
+
+
+
+
+def main(top_block_cls=Simluation, options=None):
+    if gr.enable_realtime_scheduling() != gr.RT_OK:
+        print("Error: failed to enable real-time scheduling.")
+
+    if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
+        style = gr.prefs().get_string('qtgui', 'style', 'raster')
+        Qt.QApplication.setGraphicsSystem(style)
+    qapp = Qt.QApplication(sys.argv)
+
+    tb = top_block_cls()
+
+    tb.start()
+
+    tb.show()
+
+    def sig_handler(sig=None, frame=None):
+        Qt.QApplication.quit()
+
+    signal.signal(signal.SIGINT, sig_handler)
+    signal.signal(signal.SIGTERM, sig_handler)
+
+    timer = Qt.QTimer()
+    timer.start(500)
+    timer.timeout.connect(lambda: None)
+
+    def quitting():
+        tb.stop()
+        tb.wait()
+
+    qapp.aboutToQuit.connect(quitting)
+    qapp.exec_()
+
+if __name__ == '__main__':
+    main()