Ats-20 Radio Manual [better] May 2026

The ATS-20 (and the upgraded ATS-20+) is a portable full-band radio receiver based on the SI4732 chip. Official printed manuals are rarely included in the box, and users typically rely on community-shared PDFs or manuals for similar firmware (like the H-RADIO/ATS25 manual). Quick Start & Core Functions

LSB/USB (Lower/Upper Sideband): Essential for listening to amateur radio operators on HF bands. 4. Tuning and Steps ats-20 radio manual

While official paper manuals are often scarce or briefly included, the device follows an intuitive interface: The ATS-20 (and the upgraded ATS-20+ ) is

2. Getting Started

Powering On/Off

• On: Rotate the volume knob clockwise until it clicks.
• Off: Rotate counterclockwise past the click.
• Note: The radio will remember your last band and frequency.

• FM: Usually set to 100kHz.
• AM/SW: Variable.
  • Exact schematic walkthrough (annotated signal path).
  • Step-by-step alignment procedure with frequency reference points (requires model-specific values).
  • Troubleshooting flowchart for a specific symptom (e.g., “no transmit”, “low receive sensitivity”).
  • Parts list and replacements with equivalent part numbers.

  Chapter 11: Comparison of ATS-20 Models (Which Manual to Follow?)

  If you bought an "ATS-20" from AliExpress, eBay, or Amazon, verify which chip you have: On: Rotate the volume knob clockwise until it clicks

  , which allows users to completely rewrite how the radio functions. Key Functions and Controls The radio features a minimalist layout centered around a 0.96-inch OLED display and several multi-function buttons: TUNE/BFO/ATS Knob