http://sdr.osmocom.org/trac/wiki/rtl-sdr 基於对DVB-T 电视棒驱动编写 http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/44461/focus=44461 OSMOCOM 发现最新便宜价廉软体无线电硬体 RTL2332U 是一个应用SDR (软体无线电的晶片) 非写死调变演算法的 ASIC RF tuner 为(64MHZ - 1700 MHz). (Maybe work in ~2000MHz) 没压缩的基频取样 (up to 2.8 MS/s 8-bit I+Q) 丢入电脑Gnu Radio 再做无线讯号处理 只能接受 不过用於RF Sniffer 效果不错 BUG:取样因为没buffer问题 所以好像在硬碟会掉包 SSD或ramdisk 会比较理想 RTL2882U晶片规格 http://www.linuxtv.org/wiki/index.php/RealTek_RTL2832U Notes Resolution 8 bits Minimum sample rate > 900 ksps (must be greater!) Maximum sample rate 3.2 Msps Nominal sample rate 1 Msps (much higher and subtle signal degradation) Clock 28.8 MHz internal oscillator (expect phase noise) Spectrum flatness (Definitely not flat at centre, worse with low gain) AGC Disabled for E4000, but still active somewhere (in demod?) Sensitivity TBD (decent all things considered) Quality Don't expect anything remotely close to USRP Price 讨论 http://www.reddit.com/r/RTLSDR/ https://groups.google.com/forum/#!forum/sdr-widget HDSDR HDSDR 是Windows 下软体无线电软体 ,可搭配RTL-SDR做RF频谱讯号检测 How to http://thenewtech.tv/community/dongular-deviation 我们公司认识工厂 因此是给我们NT 400成本价... (还带天线跟摇控器...XD) 我已实作HDSDR 做频谱观察 正在改装收听测试 ACARS 讯号 搭配GNURadio 其他各种Wireless sniffer 也颇方便... Like GSM ,Dect and more... ※ 编辑: laptop 来自: 211.72.203.66 (04/01 20:37) ※ 编辑: laptop 来自: 220.135.57.127 (04/02 05:19)