Tap the icon on the bottom left of the touchscreen. A menu will appear with preset allocations: FM: Standard commercial broadcast radio. AM/MW: Medium-wave local broadcasting. LW: Long-wave experimental and utility stations.
Steps for activation, Wi-Fi configuration, and touch screen calibration. Navigation:
Hold down buttons "1" and "3" while powering on. The manual PDF reveals this enters the calibration menu where you can adjust: ats-25 radio manual pdf
Used for charging the internal 3.7V lithium battery and flashing firmware updates via a PC connection.
Slowly rotate the tuning knob until the human voice sounds natural rather than high-pitched or heavily distorted ("Donald Duck" effect). Customizing Settings and WiFi Tap the icon on the bottom left of the touchscreen
The included telescoping antenna is insufficient for indoor shortwave listening. Hook up a long wire antenna (even a 20-30 foot spool of speaker wire tossed outside a window) to the BNC jack for a massive boost in signal.
If the screen locks up, press and hold the power knob for 10 seconds to force a hard reset. Check that your battery is fully charged, as low voltage can cause touch instability. LW: Long-wave experimental and utility stations
Here are some practical tips to help you get the most out of your ATS-25 radio:
Remember that the ATS-25 platform is community-driven, so treat this guide as a starting point for your own exploration. With a little patience and a lot of curiosity, you'll find that this little radio offers big rewards for amateur radio operators and shortwave listeners alike.
Many ATS-25 variants utilize an ESP32 controller, allowing users to flash custom community firmware (such as the popular Russian community firmware mods) for extra features like a waterfall display or Bluetooth audio. Connect the ATS-25 to a PC via a data-capable USB-C cable.
"The battery indicator is always wrong." Manual Solution: The fuel gauge assumes a 3.7V Li-ion. If using 2x AA batteries, you must change the battery type in the System Menu (Option 14: Battery Type = Dry Cell).
