UNTIL recently the measurement of currents at radio-frequencies has depended on the assumption that the instruments used did not alter their calibration with frequency, and every endeavour was made to ...

Unlock smoother, tighter skin from the comfort of your own home with CurrentBody’s RF Radio Frequency Skin Tightening Device.

IT is difficult for a wireless worker of to-day, who has been trained along modern lines, to realise how much precision has been introduced into his subject by the development of the thermionic valve.

The video explains the operation of the vacuum tube, specifically the triode, which is essential in modern communication devices like radios and telephones. It describes how a tungsten filament emits ...

Nick’s Signal Spot is a new feature in which Nick Langan explores RF signals, propagation, new equipment and related endeavors. A couple of months ago, I wrote about tunnel radio. It is really more of ...

A technology for converting radio frequency signals into direct current electricity has been developed by researchers at the University of Central Florida to help meet the expanding energy ...

"Directed" radio frequency is the most plausible explanation for mysterious symptoms experienced by diplomats stationed in U.S. embassies in Havana and elsewhere, a U.S. government report said on ...