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Tips and Tricks Video 124

Tips and Tricks Video 124

PTP – A new reference (French and English document) To deploy systems interconnected with IP links, the most difficult issue to solve is synchronization of all the equipment’s with a unique clock. With this in mind, an old standard has been adapted for Broadcast applications: PTP (Precision Time Protocol). Originally, this technology has been used by banks for High Frequency Trading operations in order that all computers in the world have a unique clock that is millisecond accurate. This protocol has now been adapted for Broadcast applications and is well described in the recommendation SMPTE ST 2059-2.
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 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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