Are you using the or an outdoor long-wire antenna?
The ATS-20 is a remarkably affordable, pocket‑sized SDR (Software‑Defined Radio) receiver that has captured the attention of hobbyists worldwide. Built around a powerful , it delivers continuous coverage of FM, AM (MW and SW), SSB (LSB and USB), and CW in a device that can be purchased for around £30 /US$30–40. The receiver is designed for experimentation – its firmware can be modified and upgraded by the user, transforming it from a simple “toy” into a serious communications receiver for amateur‑radio and shortwave‑listening applications.
: Flip the Toggle Switch (usually on the back or side) to ON. ats-20 radio manual
Rotate the encoder to select your desired band (e.g., SW1, MW, FM). Press the encoder button to confirm.
POWER ON: Long-press VF SELECT MODE: Long-press Filter (AM > LSB > USB) SAVE MEMORY: VFO mode > Long-press VM > Long-press VF RECALL MEMORY: Short-press VM > Rotate Encoder SSB TUNING: 10 Hz steps (press encoder to change step speed) RESET DEVICE: Pinhole reset button next to USB port (paperclip) HIDDEN MENU: Power off > Hold VOL + Power Are you using the or an outdoor long-wire antenna
While official paper manuals are often scarce or briefly included, the device follows an intuitive interface:
If you are having trouble with a specific menu option or need to know how to install custom firmware, let me know which version you have and I can provide a more tailored answer. The receiver is designed for experimentation – its
The ATS-20 is a modern DSP (Digital Signal Processing) radio receiver. It's an incredible example of what's possible in the world of amateur radio and electronics when open-source development and powerful, low-cost hardware combine.
Best for commercial FM/AM stations where audio clarity and high fidelity are preferred.
The ATS-20 is beloved for its SSB capability, allowing you to hear amateur radio operators. Select Mode : Cycle through modes (AM, LSB, USB) by pressing the Fine Tuning (BFO) : In USB or LSB mode, click the encoder or press the
Turn the knob clockwise to increase the volume and counter-clockwise to decrease it. Press the knob again to lock in the volume level. Changing Frequency Bands