#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: UHD WBFM Receive
# Author: Example
# Description: WBFM Receive
# Generated: Thu May 24 20:00:08 2012
##################################################
from PyQt4 import Qt
from gnuradio import audio
from gnuradio import blks2
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.gr import firdes
from gnuradio.qtgui import qtgui
from optparse import OptionParser
import PyQt4.Qwt5 as Qwt
import baz
import sip
import sys
class uhd_wbfm_receive(gr.top_block, Qt.QWidget):
def __init__(self, audio_output="", freq=107.6e6, gain=10, address="addr=192.168.10.2", samp_rate=1056e3):
gr.top_block.__init__(self, "UHD WBFM Receive")
Qt.QWidget.__init__(self)
self.setWindowTitle("UHD WBFM Receive")
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
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)
##################################################
# Parameters
##################################################
self.audio_output = audio_output
self.freq = freq
self.gain = gain
self.address = address
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.volume = volume = 2
self.tun_gain = tun_gain = gain
self.tun_freq = tun_freq = 9.30825e+07
self.fine = fine = 0
self.audio_decim = audio_decim = 22
##################################################
# Blocks
##################################################
self._volume_layout = Qt.QVBoxLayout()
self._volume_knob = Qwt.QwtKnob()
self._volume_knob.setRange(0, 10, 1e-3)
self._volume_knob.setValue(self.volume)
self._volume_knob.valueChanged.connect(self.set_volume)
self._volume_layout.addWidget(self._volume_knob)
self._volume_label = Qt.QLabel("Volume")
self._volume_label.setAlignment(Qt.Qt.AlignTop | Qt.Qt.AlignHCenter)
self._volume_layout.addWidget(self._volume_label)
self.top_layout.addLayout(self._volume_layout)
self._tun_gain_layout = Qt.QVBoxLayout()
self._tun_gain_knob = Qwt.QwtKnob()
self._tun_gain_knob.setRange(0, 20, 1e-2)
self._tun_gain_knob.setValue(self.tun_gain)
self._tun_gain_knob.valueChanged.connect(self.set_tun_gain)
self._tun_gain_layout.addWidget(self._tun_gain_knob)
self._tun_gain_label = Qt.QLabel("tun_gain")
self._tun_gain_label.setAlignment(Qt.Qt.AlignTop | Qt.Qt.AlignHCenter)
self._tun_gain_layout.addWidget(self._tun_gain_label)
self.top_layout.addLayout(self._tun_gain_layout)
self._tun_freq_layout = Qt.QVBoxLayout()
self._tun_freq_tool_bar = Qt.QToolBar(self)
self._tun_freq_layout.addWidget(self._tun_freq_tool_bar)
self._tun_freq_tool_bar.addWidget(Qt.QLabel("Freq (Hz)"+": "))
self._tun_freq_counter = Qwt.QwtCounter()
self._tun_freq_counter.setRange(80e6, 110e6, 1e-2)
self._tun_freq_counter.setNumButtons(2)
self._tun_freq_counter.setValue(self.tun_freq)
self._tun_freq_tool_bar.addWidget(self._tun_freq_counter)
self._tun_freq_counter.valueChanged.connect(self.set_tun_freq)
self._tun_freq_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._tun_freq_slider.setRange(80e6, 110e6, 1e-2)
self._tun_freq_slider.setValue(self.tun_freq)
self._tun_freq_slider.setMinimumWidth(200)
self._tun_freq_slider.valueChanged.connect(self.set_tun_freq)
self._tun_freq_layout.addWidget(self._tun_freq_slider)
self.top_layout.addLayout(self._tun_freq_layout)
self._fine_layout = Qt.QVBoxLayout()
self._fine_tool_bar = Qt.QToolBar(self)
self._fine_layout.addWidget(self._fine_tool_bar)
self._fine_tool_bar.addWidget(Qt.QLabel("fine"+": "))
self._fine_counter = Qwt.QwtCounter()
self._fine_counter.setRange(-1e-1, 1e-1, 1e-3)
self._fine_counter.setNumButtons(2)
self._fine_counter.setValue(self.fine)
self._fine_tool_bar.addWidget(self._fine_counter)
self._fine_counter.valueChanged.connect(self.set_fine)
self._fine_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._fine_slider.setRange(-1e-1, 1e-1, 1e-3)
self._fine_slider.setValue(self.fine)
self._fine_slider.setMinimumWidth(200)
self._fine_slider.valueChanged.connect(self.set_fine)
self._fine_layout.addWidget(self._fine_slider)
self.top_layout.addLayout(self._fine_layout)
self.rtl2832_source_0 = baz.rtl_source_c(defer_creation=True)
self.rtl2832_source_0.set_verbose(True)
self.rtl2832_source_0.set_vid(0x0)
self.rtl2832_source_0.set_pid(0x0)
self.rtl2832_source_0.set_tuner_name("e4000")
self.rtl2832_source_0.set_default_timeout(0)
self.rtl2832_source_0.set_use_buffer(True)
self.rtl2832_source_0.set_fir_coefficients(([]))
if self.rtl2832_source_0.create() == False: raise Exception("Failed to create RTL2832 Source: rtl2832_source_0")
self.rtl2832_source_0.set_sample_rate(samp_rate)
self.rtl2832_source_0.set_frequency(tun_freq+fine)
self.rtl2832_source_0.set_auto_gain_mode(False)
self.rtl2832_source_0.set_relative_gain(True)
self.rtl2832_source_0.set_gain(tun_gain)
self.qtgui_sink_x_0 = qtgui.sink_c(
1024, #fftsize
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"QT GUI Plot", #name
True, #plotfreq
True, #plotwaterfall
True, #plottime
True, #plotconst
)
self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_sink_x_0_win)
self.low_pass_filter_0 = gr.fir_filter_ccf(1, firdes.low_pass(
1, samp_rate, 115e3, 30e3, firdes.WIN_HANN, 6.76))
self.gr_multiply_const_vxx = gr.multiply_const_vff((volume, ))
self.blks2_wfm_rcv = blks2.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=audio_decim,
)
self.audio_sink = audio.sink(int(samp_rate/audio_decim), audio_output, True)
##################################################
# Connections
##################################################
self.connect((self.gr_multiply_const_vxx, 0), (self.audio_sink, 0))
self.connect((self.blks2_wfm_rcv, 0), (self.gr_multiply_const_vxx, 0))
self.connect((self.low_pass_filter_0, 0), (self.blks2_wfm_rcv, 0))
self.connect((self.rtl2832_source_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.qtgui_sink_x_0, 0))
def get_audio_output(self):
return self.audio_output
def set_audio_output(self, audio_output):
self.audio_output = audio_output
def get_freq(self):
return self.freq
def set_freq(self, freq):
self.freq = freq
def get_gain(self):
return self.gain
def set_gain(self, gain):
self.gain = gain
self.set_tun_gain(self.gain)
def get_address(self):
return self.address
def set_address(self, address):
self.address = address
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.rtl2832_source_0.set_sample_rate(self.samp_rate)
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, 115e3, 30e3, firdes.WIN_HANN, 6.76))
self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate)
def get_volume(self):
return self.volume
def set_volume(self, volume):
self.volume = volume
self.gr_multiply_const_vxx.set_k((self.volume, ))
self._volume_knob.setValue(self.volume)
def get_tun_gain(self):
return self.tun_gain
def set_tun_gain(self, tun_gain):
self.tun_gain = tun_gain
self.rtl2832_source_0.set_gain(self.tun_gain)
self._tun_gain_knob.setValue(self.tun_gain)
def get_tun_freq(self):
return self.tun_freq
def set_tun_freq(self, tun_freq):
self.tun_freq = tun_freq
self.rtl2832_source_0.set_frequency(self.tun_freq+self.fine)
self._tun_freq_counter.setValue(self.tun_freq)
self._tun_freq_slider.setValue(self.tun_freq)
def get_fine(self):
return self.fine
def set_fine(self, fine):
self.fine = fine
self.rtl2832_source_0.set_frequency(self.tun_freq+self.fine)
self._fine_counter.setValue(self.fine)
self._fine_slider.setValue(self.fine)
def get_audio_decim(self):
return self.audio_decim
def set_audio_decim(self, audio_decim):
self.audio_decim = audio_decim
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
parser.add_option("-O", "--audio-output", dest="audio_output", type="string", default="",
help="Set Audio Output Device [default=%default]")
parser.add_option("-f", "--freq", dest="freq", type="eng_float", default=eng_notation.num_to_str(107.6e6),
help="Set Default Frequency [default=%default]")
parser.add_option("-g", "--gain", dest="gain", type="eng_float", default=eng_notation.num_to_str(10),
help="Set Default Gain [default=%default]")
parser.add_option("-a", "--address", dest="address", type="string", default="addr=192.168.10.2",
help="Set IP Address [default=%default]")
parser.add_option("-s", "--samp-rate", dest="samp_rate", type="eng_float", default=eng_notation.num_to_str(1056e3),
help="Set Sample Rate [default=%default]")
(options, args) = parser.parse_args()
qapp = Qt.QApplication(sys.argv)
tb = uhd_wbfm_receive(audio_output=options.audio_output, freq=options.freq, gain=options.gain, address=options.address, samp_rate=options.samp_rate)
tb.start()
tb.show()
qapp.exec_()
tb.stop()
