Cindy Hutter Cavell is director of the Cavell-Mertz Spectrum Division at Capitol Airspace Group. She’s had a 48-year career in network, television and cable broadcasting and is a recipient of the NAB ...

In the late 1980s the television station I worked at was still using an early 1970s transmitter, an RCA TT-50FH (50 kW, Series F, High-band VHF). The transmitter was made with three cabinets: two 25 ...

Wide bandwidth radio transmitters commonly use analog quadrature modulators (AQMs) to convert complex (I + j*Q) baseband signals to radio frequencies (RF). An AQM consists of a local oscillator (LO) ...

The author is sales and business development manager for Ampegon Power Electronics AG. My first car, a 1984 vintage, had a shortwave radio receiver, but I didn’t bother using it. I was young while it ...