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Eye to Eye: Distribution and Delivery 2010

Distribution and Delivery are two elements of in the broadcast chainthat get taken pretty much for granted but both are highly important. My focus in this summary is on equipment and software introduced since IBC 2009 and in the run-up to NAB 2010. Distribution linksThese come in many shapes and flavours, over copper, optical fibre, RF, point-to-po...

Submitted by Bob Pank#

Published 01 May 2010

Ask the experts on cable

Digital, server-based systems in production, post-production, news gathering and playout bring increased efficiencies and productivity. Nonlinear editing and news gathering allow users to access the same material across a data network. Digits are here and are now dictating the form of cables and connectors, from camera through to playout. What qual...

Submitted by Bob Pank#

Published 01 May 2010

Eye to Eye: Whats even newer in test and measurement 2010

A year is a long time in broadcast test & measurement, which is just as well because that is when this column previously focused on it. Given the current push to establish 3D as a permanent feature of the broadcast landscape, one might reasonably expect T&M kit designers to be heading along the same road. Hamlet and Omnitek certainly are but it see...

Submitted by Bob Pank#

Published 01 April 2010

Frame Rates and HD

Much has changed since the 25 Hz and 30 Hz frame rates for television were defined over 60 years ago. In Part 1, last month we noted how the USA (followed by others) adopted the 1000/1001 frequency offset to produce the 29.97 Hz rate and the resulting drop-frame timecode. Of course at that time, 1953, they could not imagine the consequences of thei...

Submitted by Bob Pank#

Published 01 March 2010

Eye to Eye: Acquisition and Production

Back in the days of the Audio Fair which annually graced London's Russell Hotel, my co-hack Frank Jones of Hi-Fi News put his head into the KEF Electronics demonstration room and bellowed the time-honoured question "What's new?"KEF was showing established products that year so its founder, the avuncular Raymond Cooke, responded with his own questio...

Submitted by Bob Pank#

Published 01 March 2010

Broadcasting Audio in 5.1 Format

One of the positive consequences of digital television transmission is the ability to include fully embedded multi channel audio with suitable metadata to control both channel displacement and even sound levels within the domestic environment. While at the receiving end of the transmission chain there are many innovations and protocols to make life...

Submitted by Dennis Lennie

Published 01 January 2010

The importance of measurements for eye and jitter

‘If it hasn’t got eye and jitter measurements, it’s about as useful as a chocolate teapot’ recalled Paul Nicholls, PHABRIX sales and marketing manager. ‘This was one comment made by a prominent broadcast engineer that stuck with me when we began to research the critical toolset required on the new eye and jitter PHABRIX SxE’. Having taken this to h...

Submitted by Dennis Lennie

Published 01 November 2009

Ask the experts. Eye & Jitter

Why should TV broadcast engineers be interested in adding Eye and Jitter measurement to their T & M facilities?The call for Eye and Jitter as part of overall video test and measurement lies in the widespread adoption of serial digital interface (SDI) standards for broadcast. Unlike analog transmission in which the image quality gradually degrades a...

Submitted by Dennis Lennie

Published 01 September 2009

Why choose a broadcast or professional monitor

Just as it’s unlikely that anyone would purchase a family vehicle to set trailblazing records around a race track and a sports car is not going to be the best choice for off-road use, the same principle is true of monitors – the key is to match the product to the demands of the task. So what are the differences between the major monitor families?Co...

Submitted by Dennis Lennie

Published 01 September 2009

PHABRIX storming ahead at NAB with eye and jitter

It is not often that a product is released that encapsulates so distinctly the essence of British ingenuity but the new SxE hand held test and measurement instrument with eye and jitter functionality from PHABRIX may just have set itself in that mould. Having successfully launched the PHABRIX SxA, a three in one portable testing device at IBC2008,...

Submitted by Dennis Lennie

Published 01 June 2009

Eye to Eye. Whats new in test and measurement 2009

The transition from analogue to digital programme production, storage and delivery lulled some innocent folk into anticipating a world without need for test equipment. If required at all, so the thinking went, all signal analysis would be performed in software. Maybe someday. For now, the T&M sector remains alive and well. The following summary out...

Submitted by Dennis Lennie

Published 01 May 2009

HD Camera Measurements and getting the most out of your c...

Recap Parts1 and 2:Parts 1 and 2 covered the theory and actual measurement of white shading, making sure that the camera non-linearities introduced by various different lens systems on a particular camera are compensated. In this issue, Part 3 will investigate setting up colourimetry and exposure as well greyscale adjustments using a waveform monit...

Submitted by Dennis Lennie

Published 01 May 2009