Radio Frequency (RF) and Microwave (MW) are terms that refer to the spectrum of electromagnetic waves in the range of 3 KHz to 300 GHz. These signals are used in various industries including, but not limited to, aerospace and defense, electronic warfare, medicine, automotive, television and radio broadcast.
The test and measurement community use test instrumentation to measure parametric data to insure that the components that make up the systems for those industries meet the specifications of their respective governing bodies. Harmonic distortion, noise figure, and phase noise are just a few of the parameters that are tested to insure system performance. The use of network analyzers, signal analyzers, and noise figure meters can be used to qualify those components/systems that are being put in to use.