Search results for 'tektronix'

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Fundamentals of AC power measurements

Fundamentals of AC power measurements

How to measure Crest factor, Power factor, Harmonic distortion....
TipsTricks

Tips and Tricks Video 134

UHD test signal generator A valid test signal is one of the first requirements when starting the evaluation and/or the deployment of a new signal format. Thus, since UHD is arriving in production studios, it would be convenient to have a UHD color bars pattern available. However, a specific UHD signal generator appears to be an overkill for a simple test or occupancy signal. For this reason, a tip in the SPG8000A allows to generate a valid UHD bar chart using its SDI option.
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Tips and Tricks Video 135

SpyderCube for HDR adjustments To balance video cameras, vision engineers typically use a grey scale test chart and a waveform monitor, which allows them to adjust multiple cameras identically with the same color grading. When shooting with High Dynamic Range, it is necessary to pay attention to the very bright picture parts, the so-called “specular highlights” that are brighter than the white bar with 90% reflectance in a grey scale test chart. In this context, a small accessory will become very useful and that is the trick we want to share with you today.
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Tips and Tricks Video 136

Last Firmware release Most of the measurement equipment’s are now operating with programmable microprocessor FPGA and it is necessary sometimes to check whether a new version is available in order to get it on the web. It appeared interesting for the NAB month to summarize the current production releases actually available on line.
TipsTricks

Tips and Tricks Video 138

UTC versus DST With such a title, an initial explanation is needed The UTC time is the Universal time taken at the Greenwich meridian in UK. Its former name was GMT (Greenwich Meridian Time) that was more explicit. Except that in summer, the time in Greenwich is one hour ahead because of a political decision. And it is precisely where DST comes, bringing a subtle nuance into the time actually used in certain countries.
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Tips and Tricks Video 139

Subliminal Picture Detection The use of subliminal pictures appears in the news regularly although their effectiveness has never been truly proven. Indeed, the law prohibiting them on television was born after a pseudo-study of an American who proved to be completely made up. It is therefore more a matter of precaution than anything else. But the law is the law and publishers are severely called to order when they happen to broadcast such images.
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Tips and Tricks Video 140

VPId - SMPTE ST352 - Video Payload Identifyer With the imminent arrival of UHD and its numerous variations, it is important to remember how an equipment can automatically recognize the nature of the signal to be processed with a video payload identifier (VPId). It is easy to understand that if this Id is not correctly entered, then it will lead to errors because the receiver device does not know how to process the incoming data.
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Tips and Tricks Video 141

SDI Data Display Navigation The option DAT or DATA (depending on the type of instrument), allows to visualize and to measure the value of each sample in a video frame. Considering the very high number of samples coming in a video frame, it could be fastidious to find a particular sample. Nevertheless, thanks to some tricks, the navigation from one to another sample is easy and quite fast. Here are 3 tips that you can use to speed up your navigation process
TipsTricks

Tips and Tricks Video 142

Picture Quality BRISQUE is a concept developed by the University of Texas to evaluate in real time and without reference the quality of a video sequence. Based on these algorithms, Tektronix introduces a new TekMOS measurement index that takes into account the quality of the image once decoded and not in its compressed data stream.

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