In Broadcast - October 2012 - 24
I N T E R N A T I O N A L
N E W S
WWW.INBROADCAST.COM | ISSUE 13 - OCTOBER 2012
InGEAR
Evolution In Camera And Audio Links
There was a time, not so long ago, when the majority of lines used for broadcast contributions and communications were physical circuits laid in the ground that were owned by the national telecom company. In the past telecoms companies supplied the bulk of two and four-wire copper connections between locations and studios for broadcasters. The whole area of vision and audio links has changed considerably over the last 20 years, however, influenced almost equally by the arrival of new technologies and the need to cut budgets. There have been big changes in the field as well. A cable is still the secure way to get good quality camera and sound signals back to the outside broadcast truck or SNG (satellite newsgathering) van but it does dictate where and how far the crew can move on location. RF (radio frequency) wireless links have given OB production more freedom and flexibility but they have also brought problems through increasingly crowded spectrum and the possibility of interference from other devices. transmitters from each brand featured extensively during the London 2012 Summer Olympic Games and are a mainstay of sports OBs and ENG (electronic newsgathering). Vislink Marketing Communications Manager Mark Anderson says the big talking point now is having 4K for wireless ready in time for the next Olympics in Rio. “Sports broadcasters in general want the next level of technology and we are keeping up with it, ready to make that leap ahead,” he says. The basis for this technological move forward will be the High Efficiency Video Coding (HEVC) compression draft standard being drawn up jointly by the ISO/IEC Moving Picture Experts Group (MPEG) and the ITU-T Video Coding Experts Group. HEVC is also known as H.265, highlighting it as the next move on H.264, the Advanced Video Coding component of the current MPEG4 coding system used for carrying HD over low bit rate connections. H.264 is the basis of a new Gigawave transmitter that is available as a clip-on or built into Sony HDC-2400 and 2500 cameras as part of collaboration with the Japanese manufacturer. Mark Anderson says this enables 3G SDI operation, delivering 1080p, which he describes as “the next step”. Vislink SD and HD wireless
Kevin Hilton
As broadcasters push to get content on-air as quickly as possible, Kevin Hilton examines the changing face of the video and audio links sector
Boxx TV’s Meridian Tallis iris control and tally indicator accessory for any wireless camera rig
Wireless Pioneers
Two pioneers of wireless camera systems – Link Research and Gigawave – are now both part of the Vislink group. MPEG2-based
24
camera systems rely on RF for their connections, as do those produced by a relative newcomer to this niche market, Boxx TV. The difference between the two approaches, as Boxx TV Co-founder Scott Walker points out, is his company’s systems run in the licence exempt 5GHz microwave band. The main camera product, Meridian, is designed for short-range transmission on multicamera studio shoots such as The Voice, Strictly Come Dancing and The X-Factor. Walker, a former cameraman, observes that a key feature of Meridian is its uncompressed, zerodelay transmission, which, he says, is critical when shooting tight closeups of, for example, people singing. Walker adds that working in 5GHz has “advantages and disadvantages” but says as there is approximately 800MHz available in the band there has never been a situation where
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Schematic for a transmission system with the Telecast CopperHead fibre optic transceiver
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In Broadcast - October 2012
Table of Contents for the Digital Edition of In Broadcast - October 2012
In Broadcast - October 2012
Contents
PO Group Invest in 4k SGO Mistika Solution
BBC Entertainment Launches in Malaysia
AJA KI Pro Eases Elton John Show Workflow Transition
Bolshoi Theatre Install RTS System
Canal+ Sports Opts for Orad Power Wall
SIS LIVE Rolls Out OB 14 HD Truck
OCC’s Bill Smith Answers on the Technical Challenges
4KTV? Not So Fast!
ChyronIP Powers Graphics on Newtek Tricaster
Take Control With Rascular’s Helm
In Broadcast - October 2012 - Intro
In Broadcast - October 2012 - In Broadcast - October 2012
In Broadcast - October 2012 - 2
In Broadcast - October 2012 - Contents
In Broadcast - October 2012 - PO Group Invest in 4k SGO Mistika Solution
In Broadcast - October 2012 - 5
In Broadcast - October 2012 - BBC Entertainment Launches in Malaysia
In Broadcast - October 2012 - 7
In Broadcast - October 2012 - 8
In Broadcast - October 2012 - 9
In Broadcast - October 2012 - 10
In Broadcast - October 2012 - 11
In Broadcast - October 2012 - 12
In Broadcast - October 2012 - 13
In Broadcast - October 2012 - 14
In Broadcast - October 2012 - 15
In Broadcast - October 2012 - 16
In Broadcast - October 2012 - 17
In Broadcast - October 2012 - 18
In Broadcast - October 2012 - 19
In Broadcast - October 2012 - 20
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In Broadcast - October 2012 - 23
In Broadcast - October 2012 - 24
In Broadcast - October 2012 - 25
In Broadcast - October 2012 - 26
In Broadcast - October 2012 - 27
In Broadcast - October 2012 - 28
In Broadcast - October 2012 - 29
In Broadcast - October 2012 - AJA KI Pro Eases Elton John Show Workflow Transition
In Broadcast - October 2012 - 31
In Broadcast - October 2012 - 32
In Broadcast - October 2012 - 33
In Broadcast - October 2012 - 34
In Broadcast - October 2012 - 35
In Broadcast - October 2012 - 36
In Broadcast - October 2012 - 37
In Broadcast - October 2012 - Bolshoi Theatre Install RTS System
In Broadcast - October 2012 - 39
In Broadcast - October 2012 - 40
In Broadcast - October 2012 - 41
In Broadcast - October 2012 - Canal+ Sports Opts for Orad Power Wall
In Broadcast - October 2012 - 43
In Broadcast - October 2012 - 44
In Broadcast - October 2012 - 45
In Broadcast - October 2012 - 46
In Broadcast - October 2012 - 47
In Broadcast - October 2012 - 48
In Broadcast - October 2012 - SIS LIVE Rolls Out OB 14 HD Truck
In Broadcast - October 2012 - 50
In Broadcast - October 2012 - 51
In Broadcast - October 2012 - 52
In Broadcast - October 2012 - 53
In Broadcast - October 2012 - OCC’s Bill Smith Answers on the Technical Challenges
In Broadcast - October 2012 - 55
In Broadcast - October 2012 - 4KTV? Not So Fast!
In Broadcast - October 2012 - 57
In Broadcast - October 2012 - 58
In Broadcast - October 2012 - 59
In Broadcast - October 2012 - ChyronIP Powers Graphics on Newtek Tricaster
In Broadcast - October 2012 - 61
In Broadcast - October 2012 - 62
In Broadcast - October 2012 - 63
In Broadcast - October 2012 - Take Control With Rascular’s Helm
In Broadcast - October 2012 - 65
In Broadcast - October 2012 - 66
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In Broadcast - October 2012 - S1
In Broadcast - October 2012 - S2
In Broadcast - October 2012 - S3
In Broadcast - October 2012 - S4
In Broadcast - October 2012 - S5
In Broadcast - October 2012 - S6
In Broadcast - October 2012 - S7
In Broadcast - October 2012 - S8
In Broadcast - October 2012 - S9
In Broadcast - October 2012 - S10
In Broadcast - October 2012 - S11
In Broadcast - October 2012 - S12
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