brmlab/osmo-tetra
4
0
Fork 0
mirror of https://github.com/brmlab/osmo-tetra.git synced 2025-06-09 02:14:04 +02:00
Code Issues Projects Releases Packages Wiki Activity

works with rtl sdr and gnuradio 3.8

Browse source
This commit is contained in:
Bastian Bloessl 2013-11-17 20:00:18 +01:00 • committed by Jiří Pinkava
parent 1d569bbd62
commit 0aef6eb648
2 changed files with 17 additions and 72 deletions
Download patch file Download diff file Expand all files Collapse all files

65
src/demod/python/osmosdr-tetra_demod_fft.py
View file

@ -25,10 +25,7 @@ from optparse import OptionParser
import osmosdr import osmosdr
import wx import wx
try: import cqpsk
import cqpsk
except:
from tetra_demod import cqpsk
# applies frequency translation, resampling and demodulation # applies frequency translation, resampling and demodulation
@ -45,15 +42,10 @@ class top_block(grc_wxgui.top_block_gui):
self.src = osmosdr.source(options.args) self.src = osmosdr.source(options.args)
self.src.set_center_freq(self.ifreq) self.src.set_center_freq(self.ifreq)
self.src.set_sample_rate(int(options.sample_rate)) self.src.set_sample_rate(int(options.sample_rate))
self.src.set_freq_corr(0, 0)
if self.rfgain is None: self.src.set_dc_offset_mode(2, 0)
self.src.set_gain_mode(1) self.src.set_iq_balance_mode(2, 0)
self.iagc = 1 self.src.set_gain_mode(1, 0)
self.rfgain = 0
else:
self.iagc = 0
self.src.set_gain_mode(0)
self.src.set_gain(self.rfgain)
# may differ from the requested rate # may differ from the requested rate
sample_rate = self.src.get_sample_rate() sample_rate = self.src.get_sample_rate()
@ -118,53 +110,6 @@ class top_block(grc_wxgui.top_block_gui):
) )
self.Add(self._ifreq_text_box) self.Add(self._ifreq_text_box)
def set_iagc(iagc):
self.iagc = iagc
self._agc_check_box.set_value(self.iagc)
self.src.set_gain_mode(self.iagc, 0)
self.src.set_gain(0 if self.iagc == 1 else self.rfgain, 0)
self._agc_check_box = forms.check_box(
parent=self.GetWin(),
value=self.iagc,
callback=set_iagc,
label="Automatic Gain",
true=1,
false=0,
)
self.Add(self._agc_check_box)
def set_rfgain(rfgain):
self.rfgain = rfgain
self._rfgain_slider.set_value(self.rfgain)
self._rfgain_text_box.set_value(self.rfgain)
self.src.set_gain(0 if self.iagc == 1 else self.rfgain, 0)
_rfgain_sizer = wx.BoxSizer(wx.VERTICAL)
self._rfgain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_rfgain_sizer,
value=self.rfgain,
callback=set_rfgain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._rfgain_slider = forms.slider(
parent=self.GetWin(),
sizer=_rfgain_sizer,
value=self.rfgain,
callback=set_rfgain,
minimum=0,
maximum=50,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_rfgain_sizer)
self.Add(self.Main) self.Add(self.Main)