搜索 - 科创

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在SDR领域，RTLSDR是好东西，可惜就是升级空间太低了，不管是修改RF-font电路，还是换用TXCO，还是使用上变频来扩展使用HF频段。感觉效果还是离专业HF波段SDR设备有很大差距。

2、可行性分析市售高频头的增益一般为55dB，RTLSDR的灵敏度约为-130dBm，考虑约30dB的各种损耗（对于在粗陋条件下制造的微波电路，这并不夸张），进入高频头的功率至少要有-155dBm即约为

射电镜的调试工作遇到了一些困难，正好发现这玩意，或许能帮我解决一部分问题。RTLpan可以对一个很宽的频率范围进行扫描，并显示出每一个频率的强度。它是基于命令行程序rtlpower的。官网简介：htt...

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