The KCUR 89.3 transmitter antenna is located about 850 feet up this 1,100-foot radio tower in eastern Jackson County. KCUR replaced our aging transmitter in December 2021 after a successful ...

Our Hackaday team is spread across the world, but remains in easy contact through the magic of the Internet. A number of us hold amateur radio callsigns, so could with a bit of effort and expenditure ...

The 185-foot masts and flattop antenna dwarf the transmitter building at the “new” 1931 WHK transmitting plant. Ever since Marconi began playing with radio at his family villa, there have been many ...

Delta RF Technology C 1122 SWR C 1126 Superior Broadcast C 1312 Dielectric C 1907 Larcan C 1916 Propagation Systems Inc C 1920 Kathrein, Scala Division C 2213 OMB America C 3324 Electrosys C 3331 ...

We think of radio navigation and direction finding as something fairly modern. However, it might surprise you that direction finding is nearly as old as radio itself. In 1888, Heinrich Hertz noted ...

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 ...

Engineers with the University of Wisconsin-Madison have come up with a novel way to boost the size of high-frequency antennas needed to transmit military communications across great distances: Turn ...

U.S. Air Force Staff Sgt. Corey Johnson, Tactical Air Control Party member, communicates with French air force aviators during a tactical exercise Feb. 24, 2016, in Djibouti. Although aviators across ...

For the first time, researchers have used a laser as a radio transmitter and receiver, paving the way for towards ultra-high-speed Wi-Fi and new types of hybrid electronic-photonic devices. You've ...

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 ...