Waveformmonitor

A waveform monitor (WFM ) is a special oscilloscope that is used in professional video equipment for measuring video levels. With a waveform monitor the quality of a video signal can be much better assessed, as it is on a computer screen or TV the case. In contrast to the television or monitor screen, provides a waveform monitor the voltage of the signal dar.

Is specific to a WFM against a standard oscilloscope is the horizontal and vertical presentation of the video lines of an image. In the horizontal display all rows above each other, which primarily serves the overall assessment of the video level. In the vertical representation of all lines of a field can be displayed side by side, with the representations of the two fields overlap. Error signal so that indicate associated with the frame rate, for example, hum interference with analogue signals.

Modern devices provide additional measurement capabilities for digital video signals. The most commonly used in professional television broadcasting centers in Germany Waveform Monitors are from American manufacturers, Tektronix.

Main area of ​​application is the monitoring of the tolerance limits of luminance and chrominance in video productions or in the transmission paths. In addition, the WFM is used for troubleshooting, for example, in problems with special switching signals in the blanking interval for analog television broadcasts, such as the Wide Screen Signalling for automatic 16:9 switching line 23