TV-BAY Magazine Issue 66 June 2012
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Sport pushes the limits of wireless transmission by Mark Anderson, Vislink W ith the London 2012 Games and the UEFA EURO 2012 European Football championships just around the corner, physical and mental endurance will be pushed to the limits. Those pressures also apply to the technology used to cover these events for the wider world because there is usually one, split-second chance to capture the action – as it happens. Second place is for the first loser. In the past, capturing sporting action could not be left to chance, so wired communications systems were the norm, but such systems had a great many limitations, both technically and creatively, so viable wireless alternatives had to 60 | TV-BAY MAGAZINE be found and radically up their game, particularly with the advent of HD. And because HD typically requires five times the bandwidth of SD, better methods of transferring those images wirelessly had to be developed, not to mention the challenges of up- and down-sampling, which can seriously degrade HD image quality if not done correctly. However, as sporting world records tumble, so too do old technologies and working practices, and this is particularly true in the case of wireless camera links, a “game” that is now played at the highest (definition) levels. Moving with the times Wireless camera systems are now of course commonplace at live sporting events,