wspr_hackrf.py

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Wspr Hackrf
# Generated: Wed Aug 17 21:55:01 2016
##################################################

from gnuradio import audio
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import osmosdr
import time


class wspr_hackrf(gr.top_block):

    def __init__(self):
        gr.top_block.__init__(self, "Wspr Hackrf")

        ##################################################
        # Variables
        ##################################################
        self.wav_rate = wav_rate = 12000
        self.samp_rate = samp_rate = 2.4e6
        self.center_freq = center_freq = 14.0956e6

        ##################################################
        # Blocks
        ##################################################
        self.rational_resampler_xxx_1 = filter.rational_resampler_ccc(
                interpolation=int(samp_rate / wav_rate),
                decimation=1,
                taps=None,
                fractional_bw=None,
        )
        self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
                interpolation=4,
                decimation=1,
                taps=None,
                fractional_bw=None,
        )
        self.osmosdr_sink_0 = osmosdr.sink( args="numchan=" + str(1) + " " + "" )
        self.osmosdr_sink_0.set_sample_rate(samp_rate)
        self.osmosdr_sink_0.set_center_freq(center_freq, 0)
        self.osmosdr_sink_0.set_freq_corr(-10, 0)
        self.osmosdr_sink_0.set_gain(14, 0)
        self.osmosdr_sink_0.set_if_gain(47, 0)
        self.osmosdr_sink_0.set_bb_gain(20, 0)
        self.osmosdr_sink_0.set_antenna("", 0)
        self.osmosdr_sink_0.set_bandwidth(0, 0)
          
        self.hilbert_fc_0 = filter.hilbert_fc(65, firdes.WIN_HAMMING, 6.76)
        self.blocks_wavfile_source_0 = blocks.wavfile_source("/home/molotov/LY2EN-KO25PQ-10.wav", True)
        self.audio_sink_0 = audio.sink(48000, "", True)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.blocks_wavfile_source_0, 0), (self.hilbert_fc_0, 0))    
        self.connect((self.blocks_wavfile_source_0, 0), (self.rational_resampler_xxx_0, 0))    
        self.connect((self.hilbert_fc_0, 0), (self.rational_resampler_xxx_1, 0))    
        self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))    
        self.connect((self.rational_resampler_xxx_1, 0), (self.osmosdr_sink_0, 0))    

    def get_wav_rate(self):
        return self.wav_rate

    def set_wav_rate(self, wav_rate):
        self.wav_rate = wav_rate

    def get_samp_rate(self):
        return self.samp_rate

    def set_samp_rate(self, samp_rate):
        self.samp_rate = samp_rate
        self.osmosdr_sink_0.set_sample_rate(self.samp_rate)

    def get_center_freq(self):
        return self.center_freq

    def set_center_freq(self, center_freq):
        self.center_freq = center_freq
        self.osmosdr_sink_0.set_center_freq(self.center_freq, 0)


def main(top_block_cls=wspr_hackrf, options=None):

    tb = top_block_cls()
    tb.start()
    try:
        raw_input('Press Enter to quit: ')
    except EOFError:
        pass
    tb.stop()
    tb.wait()


if __name__ == '__main__':
    main()