When the first USB DTV receivers came out with tuners covering 54–806 MHz, I wondered if any of them could be modified into an inexpensive spectrum analyzer. Thanks to RealTek and some Linux kernel ...

In 1976, two shaggy-haired college dropouts founded a company called Apple to manufacture personal computers. The company’s prospects looked so poor that the third co-founder relinquished his 10 ...

For institutions, organizations and individuals operating applications using RF, it can be very important to know who and what is making use of the spectrum. The proliferation of digital technology ...

Spectrum Slit a light sculpture visualizes RF activity with an SDR receiver and sixty?four filament LEDs, helping you see ...

Aiming to finalise the commercialisation of its universal spectrum multiplier (USM) open radio access networks (Open RAN) software for 4G, 5G and emerging 6G mobile networks, Cohere Technologies has ...

Pipe local wireless noise through an SDR into an RPi, and 64 LED filaments do the rest Unless you live in a Faraday cage, you ...

The U.S. military is moving an advanced radio-frequency mapping capability from the laboratory into the hands of warfighters. Developed by the Defense Advanced Research Projects Agency, the technology ...