forked from argilo/sdr-examples
/
pager_rx.py
executable file
·281 lines (251 loc) · 9.5 KB
/
pager_rx.py
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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Pager Rx
# Generated: Sun Dec 29 11:31:31 2013
##################################################
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio import wxgui
from gnuradio import pager
from gnuradio.eng_option import eng_option
from gnuradio.fft import window
from gnuradio.filter import firdes
from gnuradio.wxgui import forms
from gnuradio.wxgui import waterfallsink2
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import osmosdr
import wx
class pager_rx(grc_wxgui.top_block_gui):
def __init__(self, options, queue):
grc_wxgui.top_block_gui.__init__(self, title="Pager Rx")
##################################################
# Variables
##################################################
self.band = band = 929.5e6
self.click_freq = click_freq = band - 500000 + 12500
self.channel = channel = round((click_freq - (band - 500000 - 12500)) / 25000)
self.samp_rate = samp_rate = 1200000
self.freq = freq = band - 512500 + (channel * 25000)
self.corr = corr = 0
self.gain = gain = 40.0
self.channel_rate = channel_rate = 25000
##################################################
# Blocks
##################################################
self._freq_static_text = forms.static_text(
parent=self.GetWin(),
value=self.freq,
callback=self.set_freq,
label="Frequency",
converter=forms.float_converter(),
)
self.GridAdd(self._freq_static_text, 1, 2, 1, 1)
_corr_sizer = wx.BoxSizer(wx.VERTICAL)
self._corr_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_corr_sizer,
value=self.corr,
callback=self.set_corr,
label="Frequency correction",
converter=forms.float_converter(),
proportion=0,
)
self._corr_slider = forms.slider(
parent=self.GetWin(),
sizer=_corr_sizer,
value=self.corr,
callback=self.set_corr,
minimum=-150,
maximum=150,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_corr_sizer, 0, 2, 1, 1)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label="Gain",
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=49.6,
num_steps=124,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 0, 1, 2)
self._band_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.band,
callback=self.set_band,
label='band',
choices=[929.5e6,931.5e6],
labels=["929-930","931-932"],
style=wx.RA_HORIZONTAL,
)
self.GridAdd(self._band_chooser, 1, 0, 1, 1)
self.wxgui_waterfallsink2_1 = waterfallsink2.waterfall_sink_c(
self.GetWin(),
baseband_freq=0,
dynamic_range=50,
ref_level=-20,
ref_scale=2.0,
sample_rate=channel_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Channel Waterfall",
)
self.Add(self.wxgui_waterfallsink2_1.win)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
self.GetWin(),
baseband_freq=band,
dynamic_range=50,
ref_level=-20,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Band Waterfall",
)
self.GridAdd(self.wxgui_waterfallsink2_0.win, 2, 0, 1, 3)
def wxgui_waterfallsink2_0_callback(x, y):
self.set_click_freq(x)
self.wxgui_waterfallsink2_0.set_callback(wxgui_waterfallsink2_0_callback)
self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "" )
self.osmosdr_source_0.set_sample_rate(samp_rate)
self.osmosdr_source_0.set_center_freq(band, 0)
self.osmosdr_source_0.set_freq_corr(corr, 0)
self.osmosdr_source_0.set_dc_offset_mode(0, 0)
self.osmosdr_source_0.set_iq_balance_mode(0, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(gain, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna("", 0)
self.osmosdr_source_0.set_bandwidth(0, 0)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(samp_rate / channel_rate, (filter.optfir.low_pass(1.0, samp_rate, 11000, 12500, 0.1, 60)), freq - band, samp_rate)
_channel_sizer = wx.BoxSizer(wx.VERTICAL)
self._channel_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_channel_sizer,
value=self.channel,
callback=self.set_channel,
label='channel',
converter=forms.float_converter(),
proportion=0,
)
self._channel_slider = forms.slider(
parent=self.GetWin(),
sizer=_channel_sizer,
value=self.channel,
callback=self.set_channel,
minimum=1,
maximum=40,
num_steps=39,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_channel_sizer, 1, 1, 1, 1)
# FLEX protocol demodulator
self.flex = pager.flex_demod(queue, 0, False, False) # options.verbose, options.log
##################################################
# Connections
##################################################
self.connect((self.osmosdr_source_0, 0), (self.wxgui_waterfallsink2_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_waterfallsink2_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.flex, 0))
# QT sink close method reimplementation
def get_band(self):
return self.band
def set_band(self, band):
self.band = band
self.set_click_freq(self.band - 500000 + 12500)
self._band_chooser.set_value(self.band)
self.set_freq(self.band - 512500 + (self.channel * 25000))
self.set_channel(round((self.click_freq - (self.band - 500000 - 12500)) / 25000))
self.wxgui_waterfallsink2_0.set_baseband_freq(self.band)
self.osmosdr_source_0.set_center_freq(self.band, 0)
self.freq_xlating_fir_filter_xxx_0.set_center_freq(self.freq - self.band)
def get_click_freq(self):
return self.click_freq
def set_click_freq(self, click_freq):
self.click_freq = click_freq
self.set_channel(round((self.click_freq - (self.band - 500000 - 12500)) / 25000))
def get_channel(self):
return self.channel
def set_channel(self, channel):
self.channel = channel
self.set_freq(self.band - 512500 + (self.channel * 25000))
self._channel_slider.set_value(self.channel)
self._channel_text_box.set_value(self.channel)
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_waterfallsink2_0.set_sample_rate(self.samp_rate)
self.osmosdr_source_0.set_sample_rate(self.samp_rate)
self.freq_xlating_fir_filter_xxx_0.set_taps((filter.optfir.low_pass(1.0, self.samp_rate, 11000, 12500, 0.1, 60)))
def get_freq(self):
return self.freq
def set_freq(self, freq):
self.freq = freq
self._freq_static_text.set_value(self.freq)
self.freq_xlating_fir_filter_xxx_0.set_center_freq(self.freq - self.band)
def get_corr(self):
return self.corr
def set_corr(self, corr):
self.corr = corr
self._corr_slider.set_value(self.corr)
self._corr_text_box.set_value(self.corr)
self.osmosdr_source_0.set_freq_corr(self.corr, 0)
def get_gain(self):
return self.gain
def set_gain(self, gain):
self.gain = gain
self._gain_slider.set_value(self.gain)
self._gain_text_box.set_value(self.gain)
self.osmosdr_source_0.set_gain(self.gain, 0)
def get_channel_rate(self):
return self.channel_rate
def set_channel_rate(self, channel_rate):
self.channel_rate = channel_rate
self.wxgui_waterfallsink2_1.set_sample_rate(self.channel_rate)
if __name__ == '__main__':
import ctypes
import os
if os.name == 'posix':
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print "Warning: failed to XInitThreads()"
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
# Flow graph emits pages into message queue
queue = gr.msg_queue()
tb = pager_rx(options, queue)
runner = pager.queue_runner(queue)
#tb = pager_rx()
tb.Start(True)
tb.Wait()