OneRadio Corp. has been working on its dragnet for radio transmissions for two years in stealth mode, but the spinout from the University of Washington’s CoMotion innovation program is finally ready ...

Although GRC (the GNU Radio Companion) uses the word radio, it is really a graphical tool for building DSP applications. In the last post, I showed you how you could experiment with it just by using a ...

Dual DRM and DAB+ digital radio receiver solutions on display at the DRM General Assembly in Jakarta, Indonesia. Featured are the “Wooden Radio” tabletop model (left) and the compact “Jogja” portable ...

Affiliates of the public radio satellite system in the United States are in the process of completing a major receiver switchover. The project involved deployment of XDS headend hardware and the XDSv7 ...

BELLEVUE, Wash.--(BUSINESS WIRE)--Wireless communications require radio frequency (RF) systems to transmit and receive radio signals, making both transmitters and receivers vital for enabling ...

The NAOJ ALMA Project and Advanced Technology Center have successfully fabricated corrugated all-metal 3D-printed horns for the ALMA Band 1 receivers (Radio Frequency: 35–50 GHz). Since around 2015, ...

[QRP Gaijin] likes to build regenerative receivers. If you’ve ever built a serious one, you know there are (at least) two problems: One is you need a variable capacitor (hard to find these days). The ...

This article is intended to introduce the beginner to the interesting and challenging art of high frequency radio design. It is also intended to entice the seasoned professional to take a deeper look ...

Testing FM receivers is not that much different than testing other pieces of audio equipment. Appropriate tests include the big six: level, frequency response, THD+N, phase, interchannel crosstalk, ...

As discussed in Part 1 of this series, as the frequency of a single or coupled tuned circuits is increased, the selectivity decreases to the point that there may be insufficient selectivity at the ...