GR-扫描包装说明
GR-扫描是用C ++编写，并在GNU收音机，RTL-SDR，并且OsmoSDR源块内置的程序。它的目的是扫描一个频率范围，并打印发现信号的列表。它应该与任何与该块，其中包括瑞昱RTL2832U设备工程设备。该软件是使用康博U620F，其使用E4000调谐器开发的。该产品似乎并没有提供在美国的网站，但新天DVB-T接收器（RTL2832U / E4000设备）有很好的评价。 资料来源：http://www.techmeology.co.uk/gr-scan/
- 作者：尼古拉斯·汤姆林森
- 许可：GPLv3的
0x01 包含在GR-扫描包工具
克扫描 - 扫描一个频率范围，并打印发现信号的列表:~# gr-scan --help linux; GNU C++ version 4.7.2; Boost_104900; UHD_003.005.003-0-unknown Usage: gr-scan [OPTION...] -a, --average=COUNT Average over COUNT samples -c, --coarse-bandwidth=FREQ Bandwidth of the coarse window in kHz -f, --fine-bandwidth=FREQ Bandwidth of the fine window in kHz -p, --time=TIME Time in seconds to scan on each frequency -r, --sample-rate=RATE Samplerate in Msamples/s -s, --spread=FREQ Minimum frequency between detected signals -t, --threshold=POWER Threshold for the difference between the coarse and fine filtered signals in dB -w, --fft-width=COUNT Width of FFT in samples -x, --start-frequency=FREQ Start frequency in MHz -y, --end-frequency=FREQ End frequency in MHz -z, --step=FREQ Increment step in MHz -?, --help Give this help list --usage Give a short usage message -V, --version Print program version Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. Report bugs to :~# gr-scan -x 100 -y 105 -p 5 linux; GNU C++ version 4.7.2; Boost_104900; UHD_003.005.003-0-unknown gr-osmosdr v0.0.x-xxx-xunknown (0.0.3git) gnuradio 3.6.5.1 built-in source types: file fcd rtl rtl_tcp uhd hackrf Using device #0 Realtek RTL2838UHIDIR SN: 00000001 Found Rafael Micro R820T tuner Using Volk machine: avx_64_mmx_orc Exact sample rate is: 2000000.052982 Hz gr_buffer::allocate_buffer: warning: tried to allocate 4 items of size 16000. Due to alignment requirements 32 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platform, our allocation granularity is 4096 bytes. gr_buffer::allocate_buffer: warning: tried to allocate 16 items of size 8000. Due to alignment requirements 64 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platform, our allocation granularity is 4096 bytes. gr_buffer::allocate_buffer: warning: tried to allocate 8 items of size 8000. Due to alignment requirements 64 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platform, our allocation granularity is 4096 bytes. gr_buffer::allocate_buffer: warning: tried to allocate 8 items of size 8000. Due to alignment requirements 64 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platform, our allocation granularity is 4096 bytes. 00:00:01: Finished scanning 99.000000 MHz - 101.000000 MHz [+] 00:00:01: Found signal: at 100.298500 MHz of width 63.000000 kHz, peak power -62.707417 dB (difference 8.297215 dB) 00:00:02: Finished scanning 99.000000 MHz - 101.000000 MHz [+] 00:00:02: Found signal: at 99.299500 MHz of width 115.000000 kHz, peak power -74.849541 dB (difference 3.358849 dB) 00:00:03: Finished scanning 99.000000 MHz - 101.000000 MHz原文来自https://www.hackfun.org/kali-tools/gr-scan_zh.html。转载请注明原出处，商用请联系原作者授权。