The ATS-20/ATS-20+ is a compact, Si4732-chip all-band DSP receiver utilizing a USB-C charged, battery-powered design to cover FM, MW, SW, and LW bands. Operating via a rotary encoder and Band/Mode buttons, the device supports SSB, bandwidth filters, and advanced tuning through firmware, with a factory reset initiated by powering on while pressing the encoder. For detailed instructions, see the official Hirokun PDF and the Goshante firmware guide.
Key Features:
Problem: "My radio only picks up FM, no shortwave." ats20 radio manual better
ATS-Mini Documentation: While originally for the ESP32 version, this GitHub Pages Guide contains clear explanations for common SI4732 features like Squelch, AGC/ATTN settings, and SoftMute that apply to the ATS-20 family. Core Operations Summary
Direct Frequency Entry: Some versions allow you to press and rotate the encoder to select a specific digit (like the "thousands" or "hundreds" place) for faster tuning. The ATS-20/ATS-20+ is a compact, Si4732-chip all-band DSP
Comparison with Other Resources:
| Control | Function | |---------|----------| | Left rotary encoder | Power on/off (press + hold), Volume (rotate) | | Right rotary encoder | Frequency tuning (rotate), Menu / Enter (press) | | Mode button (if present) | Short press: change modulation (AM/LSB/USB/NFM/WFM) | | Memory button | Save current frequency to a memory slot | | VFO/MR button | Toggle between VFO (tuning) and Memory Recall mode | The ATS-20/ATS-20+ is a compact
, which allow you to manually narrow the audio passband to isolate signals in crowded bands. Key Features & Manual Overview According to the ATS-20 Si4732 User Manual , these are the primary functions: Bandwidth Filtering : You can select between 0.5, 1, 1.2, 2.2, 3, and 4kHz