The and its successor, the ATS-20+ , have gained a cult following in the ham radio community, largely due to "exclusive" community-developed firmwares that transform these budget-friendly devices into surprisingly capable receivers. The "Exclusive" Edge: ATS_EX Firmware
The most significant upgrade in the latest exclusive builds is the refined support. By implementing custom patch files (often derived from the Harduino libraries), the firmware allows for 1kHz or even 500Hz tuning steps without the "audio muting" effect found in older versions. 2. Expanded Frequency Coverage ats20 firmware exclusive
Users seeking to upgrade should verify their device's screen driver and pinout before flashing to avoid hardware incompatibility. ATS-20 The and its successor, the ATS-20+ ,