使用rtl-usb接收无线电

准备：

1].硬件：RTL-SDR R820T2 TUNER，30元左右一个

2].CentOS

 

1.下载RTL-SDR软件

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

 

2.编译&安装

$cd cmake  

$cmake ..  

$make install  

增加/etc/modprobe.d/no-rtl.conf

blacklist dvb_usb_rtl28xxu  

blacklist rtl2832  

blacklist rtl2830  

 

3.接收FM广播

$rtl_fm -f 955e5 -M wbfm -s 480k -r 48000 - | aplay -r 48k -f S16_LE

 

4.复位USB接口

#include  

#include  

#include  

#include  

#include  

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 function ‘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/001/003   

[root@dev sdr]#   

 

5.接收飞机飞行数据

git clone https://github.com/antirez/dump1090.git  

export PKG_CONFIG_PATH=/root/sources/sdr/rtl-sdr/rtl-sdr/cmake/  

make  

./dump1090 --interactive

 

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