Press 'Step' to change frequency steps; long-press displays the signal meter.
A visual indicator for signal strength, essential for DXing.
Before beginning the firmware update process, gather the following tools and software: Hardware Requirements ats20 firmware
Access to new settings, such as adjusting CPU frequency, finer tuning steps, and better band scanning.
You will need a USB data cable (not just a charging cable) and the firmware file itself. The best practice is to download the latest .hex file from the official goshante/ats20_ats_ex GitHub Releases page . Press 'Step' to change frequency steps; long-press displays
In Arduino IDE, go to Tools > Board and select Arduino Uno or Arduino Nano (depending on the specific ATS20 mainboard revision—Uno is most common). Select the correct COM Port .
Flashing custom firmware provides several immediate benefits: You will need a USB data cable (not
Find the latest stable .hex file from a reputable source like GitHub (search for "SI4732 ATS20 firmware").
Unlocking Potential: A Guide to Firmware Upgrades and its successor, the