Search results for 'Is Your Digital RF Communication System Optimized to Provide the Hist'

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Tips and Tricks Video 123

Tips and Tricks Video 123

DARS phase evaluation (French and English document) The DARS signal is sometimes created in another equipment than a SPG. In this case, it is necessary to check regularly the phase of this DARS compared to the video Sync of the system. As a matter of fact, these two signals must be synchronous and stable otherwise clicks and pops suddenly appear. But this is not easy to do so, since one signal is analog and the other is digital, and on top of that it’s necessary to compare the BB with the content of the AES signal and not with the clock ! The trick to do that is to use a traditional oscilloscope able to trigger on a user-defined pattern in a digital stream.
Tips and Tricks Video 127

Tips and Tricks Video 127

The MD5 code – How it works (French and English document) MD5 acronym is very often used in the telecommunication industry since it became a generic term similar to an Escalator or a Frigidaire. But it is less known what is hidden behind these letters. Following the polynomial calculations of last month, here is a paper introducing the basics of this system and how to use it in the Aurora file-based QC solution.
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Tips and Tricks Video 147

NMOS IS-04 As our industry moves away from hard wired systems towards flexible IP based architectures, international standardization entities (like SMPTE or AES) have worked on specifications to stream live content on IP packets (ST2110). But they have not really worked about interconnection and interoperability: How for instance to know what is in a system or how to simply connect a camera to a monitor in this environment ? Facing this context, AMWA has created an open working group named NMOS to work on these subjects. The first published specification (IS-04) enables applications to discover networked resources, which is an important first step towards automation and scalability. Tektronix being one of the active members of this group, IS-04 is already implemented in the Prism to facilitate the network connectivity.
Tips and Tricks Video 126

Tips and Tricks Video 126

The HD-SDI CRC’s – What a story ! (French and English document) It is well known, that in HD-SDI, each line has its own dual CRC control packet in order to check separately the luminance and the chrominance of a signal. It is less known how it works really. This note is giving the basic knowledge in order to understand the process involved in this technology maintaining the integrity of the data in a digital path. At the same time, it will explain a bit more the interest of the data display available in oscilloscopes.
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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
Boosting Performance Oscilloscope Performance

Boosting Performance Oscilloscope Performance

Introducing 70GHz ATI Real Time Oscilloscope
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Tips and Tricks Video 148

UHD-4K SQD vs 2SI The Video industry is always trying to improve its level of quality. In this context, 4K UHD is now coming to our TV sets and the best example will be the next world cup in Russia in June that will be covered in 4K in all the stadiums and broadcasted to each country in its native format. 4K UHD requires 8 times more bandwidth than a regular HD signal. It means that 12Mbps are needed. If we remember the difficulties faced moving from SD-SDI (270Mbps) to HD-SDI (1,485Mbps), dealing with 12Gbps SDI could be considered as quite a challenge. Fortunately, for those now wanting to take any risk, some tips exist allowing well-known process, and a lot of broadcasters are using the 4 links 3Gbps technique. So, the signal is divided in 4 equal parts and transported on 4 different coaxial cables. Two modes exist for splitting the pixels, each of one with advantages and disadvantages.
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 125

Tips and Tricks Video 125

Video on optical fiber measurement (French and English document) Because optical connection solutions are easier to use and manipulate, they are becoming increasingly popular in the broadcast industry. Nevertheless, when a difficulty occurs in deploying the solution, it is useful to have an equipment able to check the main parameters of the transmission path. This is precisely what the SFP option of the WFM2300 does and here are some tricks on how to use it appropriately.

Items 1 to 9 of 30 total

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