RF (radio frequency) signal generators produce RF signals that can be adjusted by frequency, waveform, output voltage, modulation, and impedance. They are commonly described as function or waveform generators and are designed to generate electronic signals with high spectral purity and reliable frequency and amplitude. Signal generators can be used for an array of applications, including cellular communications, radar, WiFi, GPS, audio, satellite communications, and the list goes on. They generate CW (continuous wave) tones and the output can be tuned within its designated frequency range.
There are multiple varying types of signal generators to choose from depending on the testing objective. Some of the different types of applications include oscillators, pulse generators, random noise generators, frequency synthesizers, and standard signal generators. Oscillators produce sine waves that can be used when measuring the return of acoustic systems, transducers, microphones, loudspeakers, and amplifiers. Pulse generators are used to generate pulsed signals at a particular frequency and span. Random noise generators are used for electronic and mechanical testing and produce wideband noise. Frequency synthesizers are able to produce an extremely accurate output of frequencies over a wide range. Standard signal generators produce sine waves over a wide range of output power and can test measure gain, bandwidth, and signal to noise ratio.
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