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Tag Archives: wireless HD-sdi
Wireless Video Executive Summary
New technologies have greatly expanded the number of choices available to broadcasters for transporting live video from venues to studios. For example, cell-phone circuit bonding has now made it possible to transmit live video from anywhere that has good cellular coverage. Recent advances in Wi-Fi standards have increased the bit-rates available for transporting video in local areas. Today, even uncompressed HD video can now be transported wirelessly using 1.5 Gigabit radio links operating at 60 GHz. Each technology has benefits and drawbacks, relative to specific applications and user environments.
Selecting the right wireless technology for each application requires analyzing the cost, bandwidth, and reliability of a variety of potential approaches. As a vendor that offers a wide range of different wireless video products, VidOvation is uniquely positioned to provide information about the pros and cons of each different solution. In this whitepaper, we hope to provide clear, useful information to support fair comparisons between the various devices that are available on the market. Our goal is to help you choose the right technology for every network, thereby earning your trust and your business.
Wireless Video Introduction
Wireless video transport has been a key part of television broadcasting since the first over-the-air transmission tests were performed almost a century ago. The methods used to transport video signals from one location to another have continued to push the limits of each new technology that has come along, including coaxial cable, microwave, satellite, fiber optics and cellular radios. With high bandwidth signals, demanding QoS (Quality of Service) requirements and sensitivity to excessive delay, video has often been at the leading (or bleeding) edge of the capabilities of many technologies.
Building on these past successes, television broadcasters today have an enormous range of wireless video transport options. These range from dedicated links that support 1.5 Gbps uncompressed HD video to highly compressed video streams that run over Wi-Fi infrastructure. In between are devices and systems to fit virtually every application. With so many choices, it can be difficult to select a suitable product that offers the best combination of performance and reliability at a price point that makes sense for each project.
VidOvation was founded to offer a wide selection of video transport solutions, including many wireless products. With the perspective gained from this range of offerings, it becomes easy to objectively analyze the relative merits of different technologies. Each one has specific features that may make it suitable for use in a particular set of applications but not in others. Because of the overall complexity of comparing such a wide range of technologies, the following discussion will be divided into four major sections. First, a number of criteria that can be used for selecting and comparing various solutions will be defined. This will be followed by a discussion of a few key applications that are particularly common for wireless video links. Then, the actual technologies will be analyzed, based on their potential applications and various selection criteria. Finally, some of the key data will be summarized in a comparison table.
NHL 60GHz Wireless HD SDI In-net GoalCam by VidOvation went on air twice on NBC Sports during the Dallas DAL vs Minnesota MIN hockey game. To learn more visit http://vidovation.com/Wireless_Video/60ghz_unlicenesed_wireless_video
Cutting-edge Wireless Video Transmission over
60 GHz Spectrum
Transmitting video wirelessly over the 60 GHz spectrum can be an ideal solution for line of sight applications. Clearly, by definition, a wireless solution eliminates the need for cabling such as fiber or coax, which can be difficult or impossible to use in many instances. Additionally, other wireless frequencies come up short for two major reasons. First, lower frequency solutions like Wi-Fi do not have the bandwidth to transport uncompressed HD video, and would therefore need to compress the video at its source, transmit it across wirelessly, and then uncompress the video at the receive end. This would both add latency and, much more importantly, reduce video quality, which is critical. Second, these lower frequency solutions in unlicensed bands are subject to a great deal of interference, which can adversely affect, and even shut down, a wireless video stream. This would clearly be unacceptable in many situations, and because of its unlicensed status, anyone with a Wi-Fi transmitter could, accidentally or maliciously, interfere with these transmissions.
While 60 GHz is also an unlicensed band, it differs from the lower unlicensed frequency in two significant ways. The first is in terms of sheer bandwidth. While Wi-Fi spectrum allocation at 2.4 GHz is roughly 85 MHz wide, the unlicensed bandwidth allocated to 60 GHz is 7 GHz wide – covering the entire band from 57-64 GHz in the US (and is the same or similar worldwide). This massive increase in bandwidth translates into much higher capacity channels that allow for the transmission of fully uncompressed high definition video at the standard rate of 1.485 Gbps. Therefore, there is no need to impact video quality or system latency by compressing the video stream.
The other major difference from lower unlicensed frequencies is the directionality and very high spectral reuse capabilities at 60 GHz. As this implementation utilizes focused point-to-point antennas, it is nearly impossible to interfere with the signal, even in the highly unlikely case of someone actually having a functioning 60 GHz transmitter. This technology has been utilized by the National Hockey League for the In-Net GoalCam for goal camera verification and instant replay. Every game of the 2012 Stanley Cup Playoffs and Final uitlized the VidOvation In-net GoalCam System. Other application include ENG, news, building-to-building links, church over-flow venues, college campuses, corporate conferenceing, professional audiovisual just to name a few.
– See more at: http://vidovation.com/Wireless_Video/60ghz_unlicenesed_wireless_video#sthash.FQ74fFna.dpuf
How to Transmit 4K Video or 10 Gbps Data Wirelessly
Philadelphia SMPTE & SBE18 Joint Meeting Notice
Guests and Non-members welcomeDate:
Tuesday, March 8th, 2016
6:15pm – Refreshments (courtesy VidOvation)
7:00pm – PresentationLocation:
Valley Forge Corporate Center
905 Madison Ave.
Norristown, PA 19403
Matthew Murphy – Lerro
NHL In-Net GoalCam’s rely on VidOvation’s 60 GHz Wireless HD SDI goal-line technology.
You may have seen it in the news, the incredible Anton Stralman goal-line save of game four in the NHL finals. This play may have been a determining factor whether the Rangers would be swept by the Kings. These crucial moments of play are what has led sports to the climactic level they’ve reached in entertainment media. It is an absolute necessity to have these high quality shots on the goal-line even if that means using alternative technologies. The NHL choose to bring in a solution from VidOvation. The In-net GoalCam’s use 60 GHz Wireless HD SDI to transport video seamlessly back to headquarters. From their, the feed can either be used for sports officiating purposes or as a beautiful shot of the goal-line on the networks. Sports fans are loving shots like the one seen below.
Goal-line technology is vital for two major reasons:
- Sports fans demand calls be made correctly.
- Great goal-line view’s heighten entertainment!
Just take a look at the shot captured below. It illustrates precisely what is so great about using 60 GHz Wireless HD SDI Video Transmission!
If your are currently seeking out alternatives such as HD SDI Wireless Video for your project, give us a call, we’d love to help you! We also have a great whitepaper on the NHL’s project here.
As a solutions provider, we work with a multitude of industries. The sports industry only represents a small portion of the fields we serve. It just so happens that the sports industry has really reached out to us lately. They’re telling us of their fans disappointment in poor calls reliant on out-dated replay technology.
Sports are a tremendous piece of our culture and we get riled up over bad calls, especially in championship-type games. With VidOvation on the fore-front of goal-line technology, this issue may soon subside. This CNBC interview features controversy over recent calls in professional sports. The interview wraps up with Jim’s brief explanation of how the VidOvation In-Net GoalCam’s are renovating the goal verification and replay systems for the NHL.