Ats-20 Radio Manual Jun 2026

Reset the EEPROM by holding the encoder button while turning the device on.

Displays the current frequency, signal strength (RSSI/SNR), current step size, battery indicator, and active mode (AM/FM/SSB).

. Because these radios are often sold under various generic brands with differing firmware versions, their operation can vary slightly. Core Controls & Operation Tuning/Encoder Knob

Press the encoder knob or wait 3 seconds to save the setting. Changing Frequency Bands Press the button. ats-20 radio manual

If you bought an "ATS-20" from AliExpress, eBay, or Amazon, verify which chip you have:

Spin to change frequencies. Press it inward to toggle secondary functions like the BFO (Beat Frequency Oscillator) fine-tuning layer. 🚀 Quick-Start Guide Get up and running in under 60 seconds with these steps:

Many users recommend flashing the radio with advanced firmware to unlock better performance and features: PU2CLR Library Reset the EEPROM by holding the encoder button

Choose step sizes ranging from 1kHz to 100kHz for AM/SW, or 10kHz to 100kHz for FM. 4. Advanced Features: SSB and Shortwave Listening

Tune to a known amateur radio frequency band (e.g., 7,000–7,300 kHz for 40 meters, or 14,000–14,350 kHz for 20 meters).

Hold the encoder button down while turning on the radio. Tuning (Frequency Control) Tune: Rotate the encoder button. Because these radios are often sold under various

Select the correct COM port and Board type (typically Arduino Nano or Pro Mini depending on your exact board variant) in the software.

Power off the radio, wait 5 seconds, and flip the switch back on. This resets the microcontroller.