Changes the frequency tuning increment when rotating the encoder knob. Options typically range from 1 kHz up to 100 kHz for quick scanning.
The inclusion of SSB (LSB/USB) makes the ATS-20 unique at its price point. Use these steps to hear amateur radio operators clearly:
If your board has only two encoders and no tactile buttons, use the following:
the physical power switch (usually located on the back or side near the USB port). ats20 radio manual better
This comprehensive manual provides the clear instructions, hidden shortcuts, and operational context you need to master your ATS-20 radio. Hardware Overview and Interface
Allows free tuning across the entire spectrum using the knob. Memory Mode: Limits tuning strictly to your saved channels.
| Band | Frequency | Recommended Antenna | |------|-----------|---------------------| | LW/MW | 0.1–1.7 MHz | External loop or long wire (5–10 m) | | SW (HF) | 2–30 MHz | Random wire (7–10 m) + counterpoise | | FM | 88–108 MHz | Telescopic whip, fully extended | | VHF | 118–174 MHz | External VHF whip or rubber duck | Changes the frequency tuning increment when rotating the
Use the 'Mode' button to switch between FM, AM, USB, and LSB. Remember: Most Ham operators below 10MHz use LSB , and those above 10MHz use USB . 4. Improving the Audio: The Speaker Mod
If you are zeroing in on a specific station, drop it to . This prevents you from overshooting the signal. 6. Battery Management The ATS20 uses a built-in lithium battery charged via USB.
Displays RSSI (Received Signal Strength Indicator) and SNR (Signal-to-Noise Ratio) values. Tuning and Frequency Management Switching Between Bands Use these steps to hear amateur radio operators
Pressing the FREQ knob inward cycles through available step sizes (e.g., 1kHz, 5kHz, 9kHz, 10kHz, 100kHz).
The ATS-20 is sensitive to Radio Frequency Interference (RFI). Computers, phone chargers, LED lights, and Wi-Fi routers will flood the radio with static.
The is a powerhouse of a portable radio, beloved by the enthusiast community for packing All-Band (FM, AM, SW, LW) and SSB capabilities into a pocket-sized metal box. However, if you’ve just unboxed one, you likely noticed that the included "manual" is more of a cryptic pamphlet than a guide.
Unlocks frequencies outside standard factory limits.