DIY Antennas, QRP, SDR & Ham Radio Projects from VU3DXR
The SDR section focuses on Software Defined Radio hardware, firmware, and real‑world operating techniques. Here you’ll see coverage of Linux‑based SDR transceivers like sBitx and ZBitx, handheld SDR projects, ADS‑B and flight tracking setups, Mini Radio / ATS‑Mini firmware updates, and practical guides to HF digital reception such as WEFAX and FT2
The Hydra SDR RFOne, a highly anticipated software-defined radio (SDR) receiver, has been facing criticism from users and experts alike due to persistent performance issues. Despite its promising features and capabilities, the device has been plagued by problems that have left many disappointed. HydraSDR RFOne has been met with criticism primarily regarding potential gain issues, […]
Software-Defined Radio Program RadioSport SDR Gets Key Upgrade for Broadcast and Signal Enthusiasts The amateur radio and software-defined radio (SDR) community is buzzing with the release of RadioSport SDR v1.7, a significant update to the popular portable SDR program. This new version, now available on GitHub, introduces a highly anticipated feature: FM RDS (Radio Data […]
GOES-R satellite reception guide — assemble an L-band dish/patch, filtered LNA, and RTL-SDR to capture continuous high-resolution weather imagery without internet
Learn how to receive high-resolution LRPT weather images from Meteor-M2 satellites using an RTL-SDR, 137 MHz antenna, and SatDump decoder. Complete guide covering pass prediction, signal reception, and image decoding for satellite enthusiasts
NOAA-15 & NOAA-19 shutdown in Aug 2025 ends APT signals. Hobbyists: explore Meteor-M2, GOES, & SDR skills to keep decoding weather satellites data.
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.
Meet the HackRF Pro from Great Scott Gadgets. This powerful successor to the HackRF One features a 100 kHz to 6 GHz range, built-in TCXO, and USB-C for advanced SDR development
HydraSDR RFOne is a fully open-source 24 MHz–1.8 GHz SDR receiver with 10 MHz bandwidth, 12-bit ADC, and USB-C — a high-performance wideband platform for satellite, VHF/UHF, and RF research
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.
HydraSDR RFOne offers strong RF hardware but faces driver maturity and software compatibility limits — including SDR app support gaps, HDR mode restrictions, and evolving open-source tooling.