Using RTL-USB to receive radios

Get ready:

1. Hardware: RTL-SDR r820t2 tuner, a treasure on 30 or so a

2. CentOS

1. Download RTL-SDR software

git clone git://git.osmocom.org/rtl-sdr.git

2. Compile & Install

$CD cmake
$cmake.
$make Install

Increase/etc/modprobe.d/no-rtl.conf

Blacklist Dvb_usb_rtl28xxu
blacklist rtl2832
blacklist rtl2830

3. Receive FM Broadcast

$rtl _fm-f 955e5-m wbfm-s 480k-r 48000-| Aplay-r 48k-f S16_le

4. Reset USB port

#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/ioctl.h >
#include <linux/usbdevice_fs.h>
void main (int argc, char **argv)
{
        const char *filename;
        int FD;
        filename = argv[1];
        FD = open (filename, o_wronly);
        IOCTL (FD, Usbdevfs_reset, 0);
        Close (FD);
        return;
}

[Root@dev sdr]# gcc-o reset reset.c 
reset.c:in function ' main ':
reset.c:13:2: warning:implicit declaration of F Unction ' Close ' [-wimplicit-function-declaration] close
  (FD);
  ^
[root@dev sdr]# Lsusb bus
001 Device 001:id 1d6b:0002 Linux Foundation 2.0 root Hub bus
002 Device 001:id 1d6b:0001 Linux Foundation 1.1 root Hub bus
001 Device 002:id 0e0f:000b VMware, Inc. 
Bus 002 Device 002:id 0e0f:0003 VMware, Inc. virtual Mouse Bus 002-Device 003:id 0e0f:0002
VMware, Inc. virtual USB Hub bus
002 Device 004:id 0e0f:0008 VMware, Inc. 
Bus 001 Device 003:id 0bda:2838 Realtek Semiconductor Corp. RTL2838-DVB-T
[Root@dev sdr]#./reset/dev/bus/usb/001/0 
[Root@dev sdr]# 

5. Receiving Aircraft flight data

git clone https://github.com/antirez/dump1090.git
export pkg_config_path=/root/sources/sdr/rtl-sdr/rtl-sdr/ cmake/
make
./dump1090--interactive

Reference:

http://www.rtlsdr.org

Http://sdr.osmocom.org/trac/wiki/rtl-sdr

Http://www.evil0x.com/posts/6401.html

Http://www.cnblogs.com/k1two2/p/5758136.html