KX4O SDR Receiving Electronics
With a bit of work, one can successfully feed an array of LF-HF receivers from one broadband antenna.
sdr
Higher Fidelity OpenWebRX 1.0.0
Some simple tweaks to a few text files try to make OpenWebRx more compatible with wider AM and FM RF bandwidths.
Thermal solutions for the Raspberry Pi
Recent metal case offerings from Raspberry Pi enclosure manufacturers help mitigate heat issues when you dare try process-heavy applications including amateur radio spotting servers.
Airspy YouLoop LF/MF/HF Möbius Receive Antenna
The Airspy YouLoop is a no tune, broadband, small footprint, affordable LF to HF receive antenna that works indoors. Its modular construction facilitates experiments to understand where the Möbius inspired electrical design provides benefit.
Using AM to explain the value of radio bandwidth
Today’s new SDR options and compatible software provide new ways to demonstrate radio technology to the next generation of STEM students.
Demo of TDoA using the SDR.hu network
Quick demonstration of Time Difference of Arrival (TDoA) technique to correlate a common transmitted signal on multiple receivers to find the transmitter’s location.
WWVB DX Virgin No More
Thanks to a spiffy new Airspy HF+ SDR receiver I can scratch listening to WWVB off the bucket list.