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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The 47-year-old ...

A recent Radio World ebook discussed trends in transmitters and best practices when shopping for one. Mike Cooney is executive vice president of engineering and chief technology officer of Beasley ...

Solid-state technology has taken over the major AM broadcast transmitter manufacturers, and up to 40kW of solid-state power is available in FM. When making the decision to buy a new transmitter, there ...

NASA can't catch a break when it comes to Voyager 1, apparently. That's because the US space agency has now revealed that the only thing keeping Voyager 1 communications running at the moment is a ...

Tuning in: interfering laser light could soon be used to generate terahertz signals. (Courtesy: iStock/arttanja) A new type of microwave radio transmitter built by physicists in the US could lead to ...

The Galveston area NOAA radio transmitter has been replaced with a permanent transmitter and is now back online.

The U.S. Consumer Product Safety Commission has announced a voluntary recall of about 15,000 Spektrum DX6i Radio Transmitters used with model aircraft because the transmitters can cause the models to ...

The need for a permanent replacement dates back to a March 25 fire at the Hitchcock facility that housed the original Galveston NOAA Weather Radio transmitter, KHB-40, which operates on ...

You've never heard Dean Martin like this. Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences transmitted a recording of Martin's classic "Volare" wirelessly via a ...

(CNN) — 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 ...