Category Archives: 802.11x – 802.11b – 802.11g – 802.11n

IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee (IEEE 802). The base version of the standard IEEE 802.11-2007 has had subsequent amendments. These standards provide the basis for wireless network products using the Wi-Fi brand name. 802.11b 802.11g and 802.11n

Eliminate Cable Clutter – 14 day TRIAL – VidOlink 5G Wireless HD SDI or HDMI – VidOvation

We understand your pain.  You’re one of the unsung heroes who slings and removes cable every day to meet the on-time demands of a multi-camera shoot, sports telecast, live event, or just a systems integrator trying to eliminate the clutter, traffic damage and performance losses due to bulky cable.

What if we told you that we can eliminate all your cabling problems with just one easy solution? What’s more, we’re so confident that our solution will save you money and headaches within the first few projects that we’re willing to provide a 14 day SATISFACTION GUARANTEE?

VidOvation’s extremely affordable VidOlink 5G family of HD SDI and HDMI wireless video links instantly eliminates clutter, performance losses and traffic damage due to long cable runs. What’s more impressive is that we’re able to offer wireless links starting at $3K. 

Call 949-777-5435 today to learn more about the VidOlink 14 day SATISFACTION GUARANTEE.  

 Wireless HD SDI  Wireless HD SDI

 VidOlink 5G Low Cost HD SDI & HDMI Wireless Link with V-Lock Mount 

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New VidLink-5G Series of Wireless SDI & HDMI Links starting at $3K from VidOvation

New VidLink-5G Series of Wireless SDI & HDMI Links starting at $3K from VidOvation

VidLink-5G Wireless HD SDI

If you’re either having to manage a team of production personnel or one of the unsung heroes that have sling and remove cable every day to meet the on-time demands for a multi-camera shoot, sports telecast, multi-camera/multi-source live event, or just a systems integrator trying to eliminate the clutter, potential damage and performance losses in cabling between heavy traffic areas – we’re VidOvation and we can help!

Our new line of VidLink 5G family of low cost HD SDI and HDMI wireless video links instantly eliminates clutter, performance losses and traffic damage due to long cable runs.  What’s more impressive during our initial launch is that we’re able to offer stand-alone and camera mount operation starting at $3K.

Keeping with our commitment to providing the best future-proof technology, quality and value – our latest VidLink line achieves outstanding performance and quality at price points that are well below the competition.

The VLK-5G-SDI-HDMI wirelessly transmits an HD-SDI and HDMI video signal up to 100 meters (330 feet) with state-of-the-art H.264 compression and can reach up to 500 meters (1650 feet) with our optional VLK-5G-20dB high gain antennas. For convenience, one transmitter can connect to up to 3 receivers simultaneously and the system is powered by an included external power supplies and a V-Lock battery mount. You can optionally use an Anton Bauer camera and battery mounts as well.

 

Posted in 802.11x - 802.11b - 802.11g - 802.11n, Applications - Industries, Broadcast, Government and Military, MPEG-4 H.264, Professional AV - Pro AV, Sports, Wireless Video | 1 Comment

Wireless SDI & HDMI Links starting at $3K from VidOvation

VidOvation Corporation

192 Technology Drive, Suite V
Irvine, CA 92618 USA

+1-949-777-5435
Fax +1-949-777-5436
www.vidovation.com

Let VidOvation help you roll up the clutter of cables with our broad range of wireless video transport systems.  We are pleased to offer the VidLink 5G family of low cost HD SDI and HDMI wireless video links for stand-alone and camera mount operation.  These systems will reduce your CAPEX/OPEX expenditures while providing a higher ROI to your bottom line.   Please call today to discuss your wireless video needs and issues.

VidLink 5G Low Cost HD SDI HDMI Wireless Link with V-Lock Mount

VidOvation is proud to introduce the VidLink 5G family of low cost wireless video links.  The VLK-5G-SDI-HDMI wirelessly transmits a HD SDI and HDMI video signal up to 100 meters or 300 feet with H.264 compression.  The system will reach up to 500 meters or 1600 feet with optional high gain antennas.  A 20mWatt 802.11 wireless link is used with dual antennas for 2x MIMO transmission.  The combination of low latency and low cost makes VidLink 5G family ideal for Broadcast, Sports, News, Corporate, House of Worship, Government and Military applications where budgets may be more of concern. The system utilizes 802.11i 128bit AES encryption for a secure transmission.  One transmitter can connect to up to 3 receivers simultaneously.  The system is powered via included external power supplies and a V-Lock battery mount. Option are available for Anton Bauer camera and battery mounts. 

If you want to learn more about VidOvation and how we can help with your video and data communications needs – just call me at 949-777-5435 x 1002.  We welcome the opportunity to meet your needs and solve your issues.  Thank you.  

Sincerely,

Gerald Hayashi
Sales Manager
949-777-5435

 

 

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Advances in wireless video streaming for remote infrastructure

How can the security industry better enable monitoring and servicing of remote infrastructure? One tool may be wireless and mobile video, both as live transmission and as recorded archives.

microNVR HauteSHOT Micro Portable Wireless Network Video Recorder

microNVR HauteSHOT Micro Portable Wireless Network Video Recorder

Firms large and small are focusing on mobile and edge systems as the next surveillance frontier. Some are pursuing display of video on cell phones and tablets; others on development of ‘smart’ wireless cameras, including sensors or analytic.  Relentless improvements in camera performance at lower cost are transforming that segment.

My colleagues and I focus on streaming video from multiple wireless sources over different radio frequencies. Advances in wireless streaming should enable further use of display and camera innovations.

What about access using public cellular networks? Today’s 3G and 4G networks reach many infrastructure sites, where wired connections may not be available. However, cellular networks do not behave anything like wired Internet connections.

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Posted in 802.11x - 802.11b - 802.11g - 802.11n, Applications - Industries, Broadcast, Government and Military, GSN - GOVERNMENT SECURITY NEWS, Haute Spot, Military - Government, Professional AV - Pro AV, Sports, Video Networking - Enterprise IPTV, Video Streaming - Webcasting, Wireless Video | Tagged , , , | Leave a comment

Uncompressed Wireless HD

Wes Simpson / 05.02.2012 12:35PM

Moving 1.5 Gbps HD signals from one place to another has long been the exclusive domain of wired systems. These could be baseband wired systems (coax, anyone?), fiber-optic systems, or high-speed (10 Gig) Ethernet systems. But until recently, it hasn’t been feasible to transmit these high-speed signals over wireless connections. Now, some new technologies are emerging that have the bandwidth capacity to handle these jumbo-size bit streams.

COFDM

Broadcasters have long used private microwave systems for transporting video signals at sports and other events where camera mobility is valuable. These systems, which often employ COFDM (Coded Orthogonal Frequency Division Multiplexing), typically use licensed frequencies that are coordinated at each venue to avoid interference between different users. Even though these systems have direct HD video inputs and outputs, the radio channel bit rates are not large enough to support uncompressed HD. So, these systems resort to using MPEG-2 and H.264 compression to get the signal to fit within the bit rate of the wireless stream.

60 GHZ

One way to get enough RF bandwidth for an uncompressed HD signal is to use a frequency band where there are fewer limitations and no license required, such as in the 60 GHz band. At least one company, VidOvation, has produced a 60GHz wireless link that is used for transmitting 1.5 Gbps video from an in-goal camera for ice hockey. In this application, the signal transport is one-way, and the receiver can be mounted in the ceiling rafters above the rink. Antennas with narrow beam widths (less than 5 degrees) are used for two reasons: to get higher gain in the direction that the antenna is pointing and to reduce the probability that a source of interference will be within the beam pattern of the receiver.

In-net GoalCam

VidOvation Goalcam, deployed in the most recent NHL season, uses a 60 GHz wireless link to transmit 1.5 Gbps video from an in-goal camera.

MIMO

Multiple Input, Multiple Output radio technology has been a big step forward for high-data rate applications. MIMO systems use multiple inputs to the radio channel (i.e. multiple RF transmitters each feeding a transmit antenna), and multiple outputs (i.e. multiple receive antennas each feeding an RF receiver). Advanced digital signal processing technology in the receiver section allows the different radio signals (which all share the same RF channel frequency) to be separated so that each of the incoming streams can be decoded using the principle of “spatial diversity.” When MIMO systems are deployed, notations such as “2×2” or “4×4” are used to indicate the number of RF transmitters and RF receivers used in the system, with each TX or RX connected to a separate antenna.

Some current digital transmission systems use MIMO technology quite effectively. LTE (Long Term Evolution, often called 4G) mobile phone systems can use MIMO arrangements; in fact, many LTE base stations use MIMO technology to increase throughput and reduce gaps in coverage. The popular WiFi standard 802.11n (which operates in the 2.4 GHz frequency band) supports up to 4×4 MIMO, which gives a theoretical channel bit rate of 600 Mbps. Actual data throughput over such a link would be much lower, due to packet overhead, inter-frame gaps, the need to allow for half-duplex operation, imperfections in the RF channel environment (caused by all those laptops and microwave ovens).

802.11AC

Fig. 1: Comparative speeds for IEEE ’s 802.11 wireless protocol

Fig. 1: Comparative speeds for IEEE ’s 802.11 wireless protocol

The IEEE is finishing up work on a new standard in the very popular 802.11 series, which already includes WiFi and the 802.11n protocols (see Fig. 1). This new standard, 802.11ac, uses signals in the 5–5.8 GHz range, where 802.11a and other systems currently operate on unlicensed frequencies. This is both good and bad; good, because no license is required from the FCC, but also bad, because the number of devices using this frequency will likely increase exponentially as soon as products using the new standard come to market, which is forecast to occur in late 2012 or in 2013.

The biggest benefit of 802.11ac is a substantial increase in the bit rates that can be sent over a wireless channel—up to a theoretical channel bit rate of 6.93 Gbps. This speed would require the use of eight (spatially diverse) transmit antennas, eight (diverse) receive antennas, 256QAM modulation and a 160 MHz radio channel, of which there are only two in the 5 GHz band. In a real application, actual throughput will be much lower, but this technology should still be able to deliver uncompressed HD transmission in some applications some of the time, particularly if the transmitter and receiver are close to each other and other RF interference is minimal.

LOOKING FORWARD

Uncompressed HD video can be transmitted wirelessly at 1.5 Gbps today using 60 GHz technology for some specialized applications. When products that support new standards, such as 802.11ac, come to market, it will be at least theoretically possible to use 5 GHz wireless transmission for uncompressed HD. Once chipsets become available, look for manufacturers to introduce equipment for both general purpose (i.e laptop and tablet) and video-specific applications.

Click for full article from TV Technology

Thanks to Jim Jachetta from VidOvation for supplying some of the data used in this article.  Please follow Jim Jachetta on Twitter @JimJachetta.

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