Sometimes, it is useful to transmit a low-power radio signal to create a beacon, to send a signal carrier to a near receiver, to transmit in QRP or QRPP mode, and so on. The circuit shown here is very ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. HACKETT's COVE, NOVA SCOTIA and QUINCY, ILL.: Two well-established radio equipment manufacturers ...

For the first time in history, a prototype radio has been created that is claimed to be completely digital, generating high-frequency radio waves purely through the use of integrated circuits and a ...

Scientists have taken advantage of graphene's special properties -- its mechanical strength and electrical conduction -- and created a nano-mechanical system that can create FM signals, in effect the ...

Cambridge Consultants are claiming the world’s first fully digital radio transmitter built only from computing power. There are no analog components like a high-speed D to A converter with amplifier, ...

A new product that incorporates HD Radio components along with Omnia audio processing — Audio In, RF Out — is getting a NAB Show rollout. It is all thanks to a new series of transmitters now coming to ...

The 47-year-old Voyager 1 spacecraft is back in touch with NASA — but not out of the woods — after a technical issue caused a days-long communications blackout with the historic mission, which is ...

This week Radio World is featuring highlights of our 2021 ebooks. This article appeared in “Mission-Critical: Maintaining Your Transmitter Site.” One hundred years is an impressive lifespan not just ...