The slow technical problems related with using open cellular, WiFi or Ethernet networksfor video backhaul to the hire has lifted its bad-looking head once again, this time in the Windy City during coverage of the large teachers’ set upon there.
As local stations competed on Sept. 9 for live coverage of press conferences at the start of the Chicago teachers strike, WLS-the local ABC OO affiliate-found itself hampered whilst on the air by serious vigilance problems related to the Dejero LIVE mobile transmitters and wireless open network they were using to go live from the scene. The cinema frequently froze and infrequently were mislaid completely during the live "on-the-scene" reports.
It was the second time in new weeks that the nascent newsgathering technology didn’t grip up beneath the compulsion of live ENG remotes, according to a inform in "TimeOut Chicago" magazine.
The Dejero LIVE Platform consists of 3 components: the Dejero LIVE Mobile Transmitter a unstable palm held HD/SD receiver that connects to a camera and goes live with the pull of a button; the Dejero LIVE Video Manager, the online executive that connects transmitters to video reception servers; and the Dejero LIVE Video Server, the reception section that typically resides in a college of music shelve to resolve the live video delivery for ingest.
"Apologies for the technical glitches," WLS-TV headlines anchor Ravi Baichwal tweeted at a point. "All funny violation news."
Apparently, the worst delivery problems due to the use of connected mobile trek receiver systems occurred during Mayor Rahm Emanuel’s lecture from the Harold Washington Library, usually 7 blocks south of ABC 7’s studios.
"We, along with the other stations in locale are using a comparatively new technology that brings back video signals around mobile air cards," an ABC 7 mouthpiece explained to TimeOut Chicago" magazine. "Last night with everybody using the bandwidth at the same time from the same location, the high quality of the vigilance was affected for a few of the stations."
It is a regard that hire engineers and normal makers of x-ray technology have been expressing about the trustworthiness of connected mobile (combining several wireless network cards together to be able to obtain a improved signal) technology. Since broadcasters have no priority to use mobile frequencies over other users, headlines coverage has no special standing and is satisfactory diversion to everybody with a mobile phone in the headlines coverage area.
When multi-part crews endeavor to use the mobile circuits at the same time, it can result in information traffic congestion, consequent in video support dropouts, solidify frames or full loss of picture. That’s assumingly what happened in Chicago and what has happened in other cities (e.g., during coverage of the justice look of the Colorado film drama shooter) as well. The actual law-breaker is network accessibility and vigilance propagation; the same problems that result in tumble cell phone calls.
At final week’s IBC Show companies that reserve mobile transmitters, inclusive Dejero Labs, LiveU, Integrated Microwave Technologies, TVU Networks and Vislink, all mentioned they are ware of such problems in complicated cell phone use areas and are working on new ways to war the problem, inclusive implementing normal and different statistical multiplexing together with deliver blunder improvement program in combination with unique capabilities whereby the network automatically switches over to other conduit card commissioned in the receiver when network overload is detected.
It is moreover strongly endorsed that users pre-plan their shoots to establish that conduit might work most appropriate with the existing bandwidth (3G/4G) and that network modes (SD or HD information rates, using H.264 encoding) are most appropriate for any ENG situation.
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