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Tips and Tricks Video 129

Tips and Tricks Video 129

SDI outputs – Which one to use ? (French and English document) Since scopes are now 3G compatible, a passive loop-through is not possible anymore because at these frequencies the metallic continuity would represent a real antenna bringing a lot of interferences in the signal. The waveform monitor outputs are then all active and it means that without mains, no signal is available on these connectors. But there are many output connectors. So witch one to select and how to choose and to set the right one ?
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Tips and Tricks Video 133

GPS antenna connection It is a FAQ to know what kind of antenna to use in a GPS installation and how to be sure that the signal at the input of the SPG is correct. It is important first to understand that the GPS receiver is inside the SPG8000A itself and then the available connector on the back side is an Antenna connector. Knowing that, it is important to take some elementary cares about how to wire the antenna in the generator.
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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.
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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 143

Stop Display The introduction of HDR cameras on the market adds to the difficulty to measure images and this is particularly the case if an operator has to adjust a mix of SDR and HDR cameras. Moving from one to the other, it will be extremely difficult for him to align the white levels similarly on the two types of cameras. The trick of the Stop display is that the waveform is no longer linear in millivolt, but logarithmic by setting the 0 (corresponding to the 80% white level) in the center of the screen, and that that scale will work for SDR or HDR cameras.
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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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Tips and Tricks Video 145

FOM, a new index of performance All users of SPG8000A with the GPS option on board have seen on the menu and in the alert panel a new index of performance index that is FOM. At a high level, a Figure of Merit is an indicator that a manufacturer makes available for a user showing at a glance how the instrument is performing. It has no scientific value and the user must calibrate it for the different steps. This paper gives some inputs on this concept and how to use it for the SPG8000A.

Items 19 to 27 of 51 total

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