April 1, 2008.

Spectrogram: Spectrum waveform monitoring

Field strength meter with spectrogram
Example of Spectrogram

The Spectrogram function (patented function), similarly to Merogram, has been designed to detect problems that affect spectrum analyser display only in the form of unpredictable random bursts.




The Spectrogram is a graphic that shows time in the horizontal scale and the measured frequency span on the vertical scale. Signal levels are then represented by colours.

Field strength meter with spectrogram

Colour spots on the graphic mean substantial signal reception variations that may be difficult to read otherwise.

The Spectrogram function, unlike Merogram, can be used for all sorts of signals within the frequency range of the TV EXPLORER II+ not being limited by their modulation scheme.

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PROMAX is a leading manufacturer of test and measurement systems, broadcast and TV signal distribution equipment. Our product lines include measuring instruments for cable TV, satellite TV, broadcast, wireless and fibre optics networks, FTTH and GPON analyzers. DVB-T modulators, IP streamers or IP converters (ASI, DVB-T) are among the company’s latest developments.