Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for FM are slightly more complicated. Wrapping your head around phase detectors, ratio detectors, ...

In the Dec. 7 issue of RWEE, we asked: What is a Bessel function and what is a typical application? a. A numerical description of propagation through a solid body, most often used in coax design. b. A ...

The average textbook definition of modulation reads: modulation is a process in which the frequency, phase or amplitude of a carrier wave varies in step with the instantaneous value of the modulating ...

There are two radio modulation schemes everyone should know. Amplitude modulation changes the amplitude — or ‘volume’, if you will — of a carrier frequency and turns all radio into channels owned and ...

A look at the simplest FM demodulation technique. It doesn’t give the lowest possible output distortion, it doesn’t reject amplitude distortion effects, but it is simple and can be used at virtually ...

Everyone's heard of AM and FM. Are you ready for TM? A Tucson-based company is working to commercialize a new communications technology - called Transpositional Modulation - that promises to multiply ...

Research Fellow and Writer-in-Residence, CONNECT, The Centre for Future Networks, Trinity College Dublin Norway is the first country in Europe to switch off FM transmissions, a move which has been ...

(1) An earlier magnetic disk encoding method that places clock bits onto the medium along with the data bits. It was superseded by MFM and RLL. FM radio was invented in the early 1930s by Edwin Howard ...

A 50-MHz FM signal is desired to have a frequency deviation of 24 kHz. The output of early stages of the transmitter is a 5-MHz signal with a frequency deviation of 4 kHz. How can the desired output ...