I have gone through our Shortwave Radio Index (SWRI) and tagged every portable radio that is based on the Silicon Labs Si4734 DSP chipset.
The Si4734 has been one of the biggest innovations to happen to portable receivers in recent years. When implemented well into a receiver design, the Si4734 can give a small portable exceptional selectivity and sensitivty through the power of DSP (Digital Signal Processing).
Simply click on this link to see a list of portable shortwave radios that are designed around the Silicon Labs Si4734:
https://swling.com/db/tag/si4734/
