Ats-20 Radio Manual -
The ATS-20 is built on an open-source architecture (typically Arduino-compatible). Many users update the firmware to unlock features like better screen layouts, expanded frequency limits, or improved BFO (Beat Frequency Oscillator) control. How to Flash New Firmware:
The included whip antenna is okay for outdoors but struggles indoors. Connecting a long wire antenna via the BNC jack dramatically improves shortwave and AM reception.
This comprehensive manual covers everything from your first power-on to advanced menu navigation and troubleshooting. 1. Product Overview and Package Contents ats-20 radio manual
Understanding the hardware capabilities helps you maximize performance. SI4732 (highly integrated broadcast receiver chip) Frequencies Covered: FM: 64 – 108 MHz (supports RDS where applicable)
The battery may be critically low. Connect a Type-C charger. The ATS-20 is built on an open-source architecture
Press the BW button to cycle through the available filters (ranging typically from 1 kHz up to 6 kHz for AM/SSB modes). Operating Single Sideband (SSB) Mode
You are slightly off-frequency. Change your tuning STEP to 1kHz or the smallest available increment, and slowly turn the encoder knob up or down until the voice sounds natural. This process is called "fine-tuning" or "clarifying." Connecting a long wire antenna via the BNC
The ATS-20 (often updated as the ATS-20+) is a highly popular, budget-friendly, and compact Si4732-based all-band radio receiver. It is widely used by shortwave listeners (SWL) and amateur radio enthusiasts. This comprehensive manual covers everything from initial setup and controls to advanced frequency navigation and troubleshooting. 1. Package Contents and Specifications Package Contents ATS-20 Radio Receiver (built-in aluminum alloy shell) BNC Whip Antenna Type-C Charging Cable Cleaning Cloth Technical Specifications
Standard 3.5mm stereo jack for private listening and improved audio clarity on weak signals. 3. Basic Operation Guide Turning the Radio On/Off Flip the physical power toggle switch to the ON position.
Here’s a common layout based on popular community builds:
