In Arduino IDE, go to Sketch > Include Library > Manage Libraries . Search for by Ricardo Caratti and click install.
The firmware unlocks the full potential of the SI4732 chip, allowing it to receive:
One of the most clever snippets from an open-source ATS20 firmware build handles SSB BFO (beat frequency oscillator) control: ats20 firmware
Before downloading any files, you must identify your specific internal board layout, as "ATS-20" devices vary across batches.
Whether you're a seasoned shortwave listener wanting to monitor 40-meter SSB conversations, a tinkerer who loves to squeeze every last drop of performance from a gadget, or a ham radio operator looking for an ultra-portable backup receiver, the Goshante firmware is your gateway. It transforms a $50 radio from an interesting toy into a genuine, professional-grade listening tool. The only question left is: what will you listen to after you upgrade? In Arduino IDE, go to Sketch > Include
Advanced firmware allows for better bandwidth control, helping you cut through interference on crowded bands. Popular Firmware Variants 1. The "PU2CLR" Library Based Firmware
I can point you to the exact source repositories or configuration tweaks for your setup. Share public link Whether you're a seasoned shortwave listener wanting to
Can be difficult to find the official source; files are often shared as pre-compiled .hex binaries on forums. Prerequisites for Flashing
Enthusiasts have reverse-engineered and rewritten large parts of the ATS20 firmware, unlocking features the original designers never documented:
It's helpful to see a side-by-side comparison of the original device and its successor.
: Often considered the gold standard for stability. Version V1.1.5 is a common factory-loaded or stable baseline for many units.