Introduction to the Decibel (dB) The definition of the bel was derived from measurements in telephony on the Bell system in the United States in the early 20th century. The bel (B) was named in […]

About Noise An attempt to describe, for fellow radio amateurs, the nature, types and characteristics of noise in a simple and understandable way, avoiding the use of mathematical relationships and formulas Noise in telecommunication systems […]