How do you receive HF signals using your RTL SDR? You’ll probably say that the easiest way is to get an upconverter. That’ll certainly get you the best quality results. You might also suggest modding the hardware itself. This also works, but can be tricky if you’re not used to soldering.
There is a third way, however, and that is to hack the software so that the RTL-SDR dongle thinks the signal is bypassing the tuner on the dongle, as is what happens with the hardware modification. Continue reading