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by Kieron Seth Monitoring Cutting the Wires It begins... T eradek began the wireless monitoring revolution at last year’s NAB show. Its Cube wireless encoders are no bigger than a pack of playing cards. They compress a camcorder’s video feed into an H.264 signal for transmission to either a WiFi-enabled laptop, iPad or tablet or to a Cube decoder. Straight-away live, remote and affordable monitoring was born. At the same instant, low-cost miniature streaming devices direct to the Net was born. “This is the advantage of encoded video,” explains Richard Payne from Holdan, Teradek’s distributor. “H.264 is so flexible that it lends itself to every stage of the production process – capture, editing and delivery. Cube makes the most of the format’s low file sizes and high quality and with each new generation, Cube is able to build in more and more features.” Teradek’s latest camera-top devices include lower latency encoding, dual band WiFi streaming and monitoring than ever. Beyond this, the company now incorporates on-board SD proxy recording, a built-in Li-ion power cell and OLED control screen. It has also extended its range with Brik, a camera-back IP encoder with V-mount adapter and dual-active loop- throughs. Wireless monitoring is just the start Specifically designed for Panasonic camcorders, the Focus FS-P250 Proxy Recorder, in conjunction with Panasonic’s AJ-WM30 wireless module, makes it easy to view live streams on a connected device. Small, portable and battery-powered with SDI inputs and loop-throughs, it attaches to the Panasonic HPX250 or HPX255 P2 camcorders and delivers content to any WiFi receiver for remote monitoring. Like the Cube, the FS-P250 is a multi-featured appliance that delivers functionality beyond video monitoring. It also offers up-to 3 hours of proxy recording in .MOV / H.264 files complete with P2 metadata. Content can be transferred wirelessly to a PC, Mac or iOS device for logging, additional metadata tagging, proxy editing or streaming to video sharing websites. According to the UK distributor, this is a fine example of collaboration between manufacturers: “Panasonic and Focus have co-operated to design a solution that adds massive functionality to studio or ENG cameras. Real-time monitoring is essential for directors; live streaming is a huge asset for live producers, while frame accurate on-set proxy editing - even on low-powered laptops - gives editors a real head start.” Commented Allan Leonhardsen, director of Holdan. Securing the wireless signal For many monitoring applications, standard WiFi is perfectly adequate. However, technologies, such as Mimo (multiple-input and multiple- output) can improve video over WiFi performance considerably. The use of multiple antennas, at both the transmitter and receiver increase, resilience, data throughput and link range, has been welcomed by broadcast manufacturers ase a way of achieving stronger remote monitoring signals. A new technology – Zixi – is now available that is another step forward in ensuring signal quality and reliability. Its video transport technology enables wireless encoders to cope with varying network conditions and sporadic RF interference. With advanced forward error correction (FEC), users can realize higher quality streams with fewer transmission errors, artefacts or freezes. For mission critical monitoring, this enhanced viewing experience is ideal for markets that prize picture quality, such as film, drama or music videos or low latency transmission, such as sports or news production. For a list of monitoring devices that are Zixi enabled, visit www.zixi.com 46 | TV-BAY MAGAZINE TV-BAY071NOV12.indd 46 06/11/2012 18:09