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edy555 / fm2wav.cgi
Created December 13, 2012 01:32
Remote FM broadcasting Receiver via HTTP
#!/bin/sh
echo "Content-Type: audio/wav"
echo
freq=$QUERY_STRING
if [ x$freq = x ]; then
freq="82.5M"
fi
rtl_fm -s 32000 -f $freq -W - | sox -r 32000 -c 1 -t s16 - -t wav -
@edy555
edy555 / nbfm2wav.cgi
Created December 15, 2012 16:24
#!/bin/sh
echo "Content-Type: audio/wav"
echo
freq=$QUERY_STRING
if [ x$freq = x ]; then
freq="145M"
fi
/usr/local/bin/rtl_fm -s 16000 -f $freq -N -p 90 - | /usr/bin/sox -r 16000 -c 1 -t s16 - -t wav -
@edy555
edy555 / nbfm.html
Created December 15, 2012 17:05
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html> <head>
<title>Remote 2M NBFM RX</title>
<SCRIPT LANGUAGE=javascript>
var baseuri = "/cgi-bin/nbfm2wav.cgi?";
var audio = null;
function tune(freq) {
if (audio != null) {
audio.src = baseuri + freq;
audio.load();
@edy555
edy555 / am2wav.cgi
Created December 15, 2012 23:46
#!/bin/sh
echo "Content-Type: audio/wav"
echo
freq=$QUERY_STRING
/usr/local/bin/rtl_fm -s 16000 -f $freq -M -p 90 - | /usr/bin/sox -r 16000 -c 1 -t s16 - -t wav -
@edy555
edy555 / dds-sample.py
Last active December 11, 2015 18:09
from pylibftdi import BitBangDevice
from dds import AD9859, BitBangInterface
crystal = 25e6
mul = 16
fclk = mul * crystal
pins = { "sdio":4, "sclk":0, "ioupdate":2, "iosync":6, "reset":7 }
conf = { "pins":pins, "fclk":400e6, "refclk_multiplier":16, "vco_range":1 }
freq = 10e6
@edy555
edy555 / vna_probe.py
Created February 28, 2013 15:19
vna control and plotting trial
#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Vna Probe
# Generated: Sat Jan 12 03:07:08 2013
##################################################
from pylibftdi import BitBangDevice
from vna import vna
@edy555
edy555 / pylab-plot.py
Created March 30, 2013 02:18
matplotlibによるVNA測定結果のプロット
from pylab import *
f,arg,mag,ref = loadtxt('vnaplot.dat', delimiter=' ', unpack=True)
subplot(2,1,1)
plot(f, mag, label='mag')
plot(f, ref, label='ref')
xlabel('Frequency (Hz)')
ylabel('Amplitude (dB)')
grid(True)
@edy555
edy555 / pylab-polar.py
Created March 30, 2013 02:21
matplotlibによるVNA測定結果の極座標表示
from pylab import *
f,arg,mag,ref = loadtxt('vnaplot.dat', delimiter=' ', unpack=True)
polar(arg, mag)
polar(arg, ref)
grid(True)
show()
@edy555
edy555 / pylab-plot3d.py
Created March 30, 2013 02:24
matplotlibによるVNA測定結果の3D表示
import matplotlib as mpl
from mpl_toolkits.mplot3d import Axes3D
import numpy as np
import matplotlib.pyplot as plt
f,arg,mag,ref = np.loadtxt('vnaplot.dat', delimiter=' ', unpack=True)
mpl.rcParams['legend.fontsize'] = 10
fig = plt.figure()
@edy555
edy555 / vna_probe.py
Created March 30, 2013 07:39
VNAからgnuradioにより測定値を得るスクリプト
#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Vna Probe
# Generated: Sat Jan 12 03:07:08 2013
##################################################
from pylibftdi import BitBangDevice
from vna import vna