Novo radio DSP SI4825 Recurso para ouvir radioamadores em SSB

I built another DSP radio using circuit boards I had made in China. In this radio, I added an LED VU meter board, in addition to the analog VU meter. But the biggest surprise was listening to SSB (sideband) from amateur radio operators on the 40-meter band, with the help of an analog radio near the DSP, acting as a "BFO" (Beat Oscillator), and I didn't know that this feature also worked in DSP radios based on the SI4825 IC.