DIY Antennas, QRP, SDR & Ham Radio Projects from VU3DXR
A collection of articles, guides, firmware updates, and reviews focused on ESP32-based DSP radio receivers (such as ATS Mini and SI4732/SI4735 projects). Covers hardware builds, firmware features, web interfaces, decoding capabilities, and performance improvements for compact software-defined and DSP radios
After weeks of anticipation and user feedback, the ATS Mini V3S has officially hit the market. The new release directly addresses the battery drain issue that affected its predecessor, making this a much-needed upgrade for loyal ATS users. What’s New in ATS Mini V3S? The V3S model is not just a minor update—it’s a refined […]
Learn the difference between OSPI and QSPI flash interfaces in ATS-Mini radios and how to identify your hardware variant. Practical checks using chip markings, PCB traces, and firmware logs to ensure correct firmware flashing.
In-depth review of the LILYGO T-Embed ESP32-S3 SI4732 multiband DSP radio covering hardware architecture, reception performance, firmware ecosystem, and real-world usability for makers, SWL, and ham radio enthusiasts.
Explore alternative firmware options for the ATS-Mini DSP radio, including G8PTN, ESP32-SI4732, and Goshante builds. Unlock enhanced usability, advanced DSP features, and customization beyond the stock firmware
Explore alternative firmware options for the ATS-Mini DSP radio, including G8PTN, ESP32-SI4732, and Goshante builds. Unlock enhanced usability, advanced DSP features, and customization beyond the stock firmware.
Optimise your ATS Mini Radio Wi-Fi, Learn to configure Wi-Fi & download the EiBi shortwave schedule for effortless, updated shortwave listening.
Ready for a better user interface and new features? Follow our simple guide to updating your ATS Mini DSP receiver firmware using easy web-based tools or desktop software
A Beginner’s Guide to ATS20+ Firmware flashing Hey radio enthusiasts! Ever wondered if your beloved ATS20+ receiver could do more, or perhaps perform even better? The answer is often a resounding YES, thanks to community-developed firmwares that unlock new features, improve performance, and even change the user interface. Flashing new firmware might sound daunting, like […]
ATS-20 is a compact SI4732-based multiband DSP receiver covering FM, MW, SW, and SSB — a highly sensitive portable radio with external antenna support and mod-friendly firmware
LILYGO T-Embed SI4732 combines an ESP32-S3 microcontroller with a DSP multiband radio (AM/FM/SW/LW + SSB), IPS display, and wireless connectivity — a compact programmable receiver for makers and radio enthusiasts.