Thank you to Grzegorz Zajac for writing in and sharing ATS Mini Controller, a free web app for the ATS Mini. The ATS Mini is a low-cost pocket shortwave receiver based on an ESP32-S3 and the SI4732 broadcast radio receiver IC. The app connects to the radio over USB or Bluetooth LE from Chrome, Edge or Opera, with nothing to install. From the browser, you can tune the radio, manage its memory slots, tune straight from an offline copy of the EiBi shortwave schedule, run spectrum scans, and update the firmware.

Readers may also be interested in the experimental RTL-SDR mode. It connects to an RTL-SDR directly over WebUSB and demodulates inside the browser, without rtl_tcp or a server. It supports dongles with R820T, R820T2 and R828D tuners, including our RTL-SDR Blog V3 and V4. It has a spectrum and waterfall, up to six VFOs, IQ recording, and a long list of decoders such as ADS-B, AIS, ACARS, APRS, FT8, and POCSAG.

Grzegorz notes that "experimental" is meant seriously, because several of the decoders have so far only been tested on generated signals. Windows users will need to install the WinUSB driver with Zadig first, and Linux users will need to blacklist the DVB driver. We note that the app is free, but it does not appear to be open source.

AI Disclaimer: While not disclosed by the author, our opinion is that this software may have been developed with AI assistance or vibe coded.