spectrum analyser

British  

noun

1. an instrument that splits an input waveform into its frequency components, which are then displayed

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Example Sentences

Engineers walked around the village with a monitor called a spectrum analyser to try to find any "electrical noise" to help pinpoint the problem.

From BBC

"We just receive a firm frequency. In theory, it would be like a continuous beep if you were to convert it into sound. We will see it on a screen that is basically a spectrum analyser. "

From BBC

Within easy reach is a spectrum analyser, which allows Tony to monitor Jackie's output, and a toy pirate ship.

From The Guardian

Meeting a man who one could imagine was wearing a brown coat and carrying a clipboard, Punt learned that the combined power of a local oscillator and spectrum analyser could ascertain not only what channel you were watching but whether you were watching it with your legs crossed.

From The Guardian

A Spectrum Analyser display shows all the frequencies between 5 and 28 MHz.

From Project Gutenberg