1711 kHz – 29999 kHz (Continuous coverage) Modes: FM, AM, LSB (Lower Sideband), USB (Upper Sideband) Audio: Internal loudspeaker, 3.5mm headphone jack Power: 3.7V Internal Lithium battery, USB-C charging port Interface and Control Layout
Displays song titles and station names on the FM band.
Even a great radio can have minor quirks. Here are the most reported issues and their solutions.
For outdoor use, use a proper long-wire antenna or a portable magnetic loop antenna (like the MLA-30+) connected directly to the BNC jack. Combat Modern Noise (RFI) ats20 radio manual better
Press the relevant band button (e.g., FM, AM, SW) to switch modes.
3.5mm stereo jack for headphones or external amplified speakers.
: Toggles modulation formats: FM, AM, USB (Upper Sideband), and LSB (Lower Sideband). SSB modes are critical for amateur radio and utility transmissions. 1711 kHz – 29999 kHz (Continuous coverage) Modes:
The ATS-20 (often utilizing Si4732 or Si4735 chips) is a wildly popular, budget-friendly All-Band Radio Receiver. While it packs incredible performance into a pocket-sized aluminum shell, the factory documentation is notoriously sparse.
Tune to an amateur radio frequency (e.g., 40-meter band around 7.150 MHz).
Displays RSSI (Received Signal Strength Indicator) and SNR (Signal-to-Noise Ratio) values. Tuning and Frequency Management Switching Between Bands For outdoor use, use a proper long-wire antenna
Cycles upward through the pre-programmed amateur and broadcast bands. Press Button 4 (Band-): Cycles downward through the bands. Changing Modulation (AM/FM/SSB)
In SSB mode, press and rotate to adjust the BFO (fine-tune voice). Operational Tips ATS_EX Firmware for ATS-20 DSP Receiver - GitHub
Multi-function clickable dial used for frequency tuning and menu navigation. The Five Key Tactile Buttons
Are you experiencing any like high static noise or audio distortion? I can give you custom tips based on your exact setup. Share public link