Many ATS-25 units ship with buggy firmware. The manual provides a step-by-step for updating via a PC USB-C cable and a flashing tool (like STM32CubeProgrammer ). Never attempt this without the PDF open, as shorting the wrong boot pins can brick the device.
If you’d like, you can:
Some users reported that while the English has improved, it can still have "a little Italian" or confusing phrasing (likely translated from Russian). Recommendation: It is highly advised to read the manual thoroughly before powering up the radio to avoid frustration. 2. Radio Performance & Technical Review ( ATS-25 Max ats-25 radio manual pdf
Located on the side or rear panel to isolate the battery, alongside a soft-power button on the front panel. 3. Operating Instructions Powering On and Off Toggle the physical battery switch to the ON position.
Fully extend the BNC telescopic antenna. For shortwave and SSB, connecting a long-wire antenna or an outdoor active loop antenna via the BNC port will dramatically increase performance. Firmware Updates (Flashing via Arduino IDE or ESP32 Tools) Many ATS-25 units ship with buggy firmware
By keeping a digital copy of the manual on your smartphone or tablet, you can easily reference key button configurations and shortcuts while operating your ATS-25 out in the field.
⚠️ Pro tip from the manual : For SSB reception, long-press the mode button to switch between USB/LSB. If you’d like, you can: Some users reported
Adjusting your filter bandwidth cuts out high-frequency hiss and neighboring interference. Recommended Bandwidth 4.0 kHz – 6.0 kHz High-fidelity broadcast listening. AM (Noisy) 2.0 kHz – 3.0 kHz Cuts adjacent channel interference. SSB / HAM 1.8 kHz – 2.4 kHz Standard setting for voice clarity. CW (Morse Code) 0.5 kHz – 1.0 kHz Isolates narrow telegraphy tones. Managing Automatic Gain Control (AGC)
Tap the volume icon again or press the encoder to save the level. Tuning and Selecting Bands