From your FM broadcast receiver which very likely now has single ... The local oscillator is an Si5351 synthesiser chip in the form of an SDR-Kits USB-driven module, and the 90 degree phased ...
Anything cheaper than that was likely to be a kit, and often operated within a narrower range of frequencies. Today, we would argue that an RTL-SDR receiver is a must-have tool. For the cost of a ...
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