Articles
Technological advances in the broadcast industry
Alan Wheable Since it is Omnitek’s 20th anniversary this year, I thought it would be interesting to look back over the technological advances in the broadcast industry over the last few decades and look at the similarities between then and now.
Tags: iss130 | omnitek | test and measurement | smpte 2110 | untra tq | 2022 | sdi 2022-6 | Alan Wheable
Contributing Author Alan Wheable Click to read or download PDF
Supporting broadcast quality control
Alan Wheable With the ever-increasing number of program channels and range of different program distribution formats, the process of ensuring program quality has become a complex one for contribution/capture, production, post production, server ingest and content distribution.
Tags: iss128 | omnitek | wcg | hdr | test and measurement | smpte 2110 | smpte 2022-6 | Alan Wheable
Contributing Author Alan Wheable Click to read
Back to Basics with IP Video Production
Michael Waidson Its difficult to attend an industry tradeshow or read a publication without seeing discussions about the technological changes that will impact the broadcast market in upcoming years. These changes include 4K/UHDTV, High Dynamic Range and High Frame Rate video but the transition to an all IP video workflow is regarded as a disruptive technology change that will demand new skill sets and infrastructure.
Tags: iss127 | tek | tektronix | ip | test | Michael Waidson
Contributing Author Michael Waidson Click to read
The importance of a low noise floor
Alan Wheable The Noise Floor of a piece of T&M equipment is the inherent noise (or intrinsic jitter) introduced by the equipment itself. The level of inherent noise affects the accuracy and repeatability of jitter measurements that can be made, especially when measuring low levels of jitter. With the permitted 100KHz jitter on a 12G-SDI signal being only 0.3UI, it is important to establish the total level of jitter in the signal path to ensure that it does not exceed this limit and cause data errors.
Tags: iss119 | omnitek | test and measurement | intrinsic jitter | Alan Wheable
Contributing Author Alan Wheable Click to read
The FAQs on automated quality assurance
Thomas Dove The transition from tape-based to file-based video and audio recording allowed a completely new approach to the business of checking that programmes and interstitials conform to broad-cast industry standards prior to transmission. The Vidcheck team designed the world's first au-tomated broadcast quality control product. We have been working on file-based content analy-sis and repair since 2003 and are probably the most experienced and innovative team active in this area. Our flagship solution is Vidchecker. The following short article addresses some of the questions most commonly fielded by potential customers.
Tags: iss116 | vidcheck | vidchecker | test and measurement | Thomas Dove
Contributing Author Thomas Dove Click to read
Test & Measurement: Ask the expert
Alan Wheable There are basically two different approaches to capturing the Eye Diagram from an SDI signal. These are real-time capture (employed by Real Time oscilloscopes) and signal subsampling (employed by Sampling oscilloscopes such as the Omnitek Ultra 4k Tool Box). All broadcast T&M equipment will use one of these approaches to create the Eye Diagram using a variety of proprietary techniques.
Tags: iss107 | test and measurement | sdi | data | potholes | monitoring | anchillary data | uhd | 4k | test pattern | jitter meters | eye diagram | Alan Wheable
Contributing Author Alan Wheable Click to read
The beat goes on... 4k, 8k and the continual need for T&M
Adam Schadle Just a few short years ago, 4k was the future, but now that 4k televisions and other screens are becoming more widely available, the format is careening toward the present. 4k is still an emerging delivery format, to be sure. After all, there are still places in the world that have yet to transition from SD to HD. But progress marches on. Even as were in the process of adopting and perfecting 4k production equipment, methods, and content delivery, were looking toward doing the same with 8k video, with certain large-audience events and special venue applications as a starting point.
Tags: iss107 | 4k | 8k | test and measurement | sd | hd | video | delivery networks | vod content | tv | voice | data | Adam Schadle
Contributing Author Adam Schadle Click to read
Hearing is believing - but Testing Helps
N/A We live in the age of measurement and all too often the results are prejudiced by the methods employed and the ease of digitally processing data.
Tags: munro acoustics | audio | testing | noise levels | N/A
Contributing Author N/A Click to read
Manage and Monitor
Will Strauss# News analysis from Will Strauss
Tags: iss093 | news production | Broadstream | Quantel | MOG Technologies | media management | Digital Nirvana | transcoding | Telestream | storage | Disk Archive | test and management | Phabrix | conversion | Cobalt Digital | workflow | Sony | facility management | Xytech | audio | monitoring | quantum Leap Technology | MAM Cambridge Imaging | Suitcase TV | quality control | Venera | Archimedia | Will Strauss#
Contributing Author Will Strauss# Click to read
Teletest Telesend HD LCD receiver Review
Jon Boast It was towards the middle of last year that I reviewed my Teradek Bolt HD wireless system for TV Bay magazine. I commented then, that monitors are about the one thing that cameramen use day in day out, wireless ones particularly. Even these days you change your camera from day to day, one day you may be out shooting on an XDCAM, then a C300 or an Alexa. Invariably though as an owner operator your monitoring systems stay the same for those shoots.
Tags: iss090 | teletest | telesend | lcd receiver | hd | review | Jon Boast
Contributing Author Jon Boast Click to read
The Digital Production Partnership
Simon Pegg The Digital Production Partnership (DPP) was founded in January 2011 by the BBC, ITV, and Channel 4, with representation from Sky, Channel 5, S4/C, UKTV, and BT Sport, to help speed the transition to fully digital production and distribution in television. As part of its work, the group has established common delivery standards based on the AS-11 file format and the UKDPP shim intended to maximize the ease and efficiency of an all digital workflow by providing a tightly constrained medium for file-based content delivery.
Tags: iss086 | Wohler Technologies | The Digital Production Partnership | BBC | ITV | Channel 4 | Sky | Channel 5 | S4/C | UKTV | BT | Moitoring | Test measurement | RadiantGrid Intelligent Media Transformation Platform | Simon Pegg
Contributing Author Simon Pegg Click to read
4k testing in todays world
Adam Schadle With the need to ingest and process video from a number of sources, broadcasters are faced with a multifaceted need to handle all types of formats including 4K. What is your multi-resolution strategy?
Tags: iss086 | Adam Schadle | Video Clarity | 4k | testing | non-real time | Adam Schadle
Contributing Author Adam Schadle Click to read
Tales from the teaching trenches: The offline, online battle
Charlie Watts To offline or to online, that is the question...
Tags: iss085 | avid certified | teacher | teaching | testemonial | article | offline | online | editing | university | Charlie Watts
Contributing Author Charlie Watts Click to read
To have and to hold... with Polecam!
KitPlus The meaning of "Darwinism" has changed over time, and varies depending on its context.
Tags: iss084 | polecam | steffan hewitt | National Asian Wedding Show | vip studios | testemonial | KitPlus
Contributing Author KitPlus Click to read
Remote control and monitoring
Alan Wheable You might wonder what remote control has to do with test and measurement. And you might be pleasantly surprised when you find out.
Tags: iss083 | remote control | phabrix | monitoring | test and measurement | equipment | explained | guide | Alan Wheable
Contributing Author Alan Wheable Click to read
Addressing lingering loudnes challenges
Andrew Sachs The loudness of the television commercials aired between program segments has been the source of consumer complaints and subsequent regulatory action in countries around the world.
Tags: iss083 | loudness | challenges | ask the experts | volicon | test and measurement | regulation | commercials | broadcast | Andrew Sachs
Contributing Author Andrew Sachs Click to read
Rising to the occasion
Kevin Cook A review of the iFootage Mini Crane by Kevin Cook.
Tags: iss083 | iFootage Mini Crane | review | test | explained | demo | crane | dslr | camera | rig | tripod | broadcast | Kevin Cook
Contributing Author Kevin Cook Click to read
12 months test of the Petrol Deca Dr. Bag
KitPlus Sometimes the only way to properly test something is to use it for a year in all manner of scenarios and then look at how it and, more importantly in this case, the contents have fared up.
Tags: iss082 | 12 months | test | review | Petrol | Deca Dr. Bag | bag | case | camera | KitPlus
Contributing Author KitPlus Click to read
Placebo Live Performance Shot on Blackmagic Cinema Camera
KitPlus Alternative rock band Placebo has recorded a live studio set of its new album on the Blackmagic Cinema Camera.
Tags: iss082 | blackmagic | cinema | camera | testimonial | example | review | placebo | alternative rock | band | music video | filming | shoot | loud like love | KitPlus
Contributing Author KitPlus Click to read
A bag for life? PELI Elite Laptop Backpack reviewed
Simon Tillyer Were a big user of PELI cases here at tv-bay. We use them for what they were designed for... and then some with attempted drownings, drops, drags and dynamite tests!
Tags: iss080 | peli | product | elite | backpack | laptop | review | test | waterproof | Simon Tillyer
Contributing Author Simon Tillyer Click to read
Why test and measurement is for real life, not just for engineers
Will Strauss# Thanks to its long-standing association with virtually incomprehensible acronyms, dark machine rooms and (lets face it) engineers with unruly beards, the subject of Test and Measurement (T&M) always gets a bit of bum rap.
Tags: iss079 | test and measurement | monitors | guide | review | leader lv5220 | tvlogic vfm-056w | swit s1070f | hd sdi | waveform | portable | hamlet | ikan | tektronix | marshall | Will Strauss#
Contributing Author Will Strauss# Click to read
Crystal Balls and the future of television TandM
Steve Nunney Best to keep well away from the Australian fast bowlers then! Joking apart, what is the future of television test and measurement? Or should we rather refer to media dispersion MD for short. MD is taking off big-time.
Tags: iss079 | crystal balls | future of tv | tandm | t and m | video and audio quality | test and measurement | Steve Nunney
Contributing Author Steve Nunney Click to read
A runaway success at Graduate Fashion Week with Blackmagic
KitPlus Encouraging and nurturing raw young talent, Graduate Fashion Week (GFW) is one of the largest international platforms of its kind. Showcasing the future of fashion, over 1,000 aspiring designers descended on London during June for Graduate Fashion Week 2013.
Tags: iss079 | blackmagic design | atem | brightonart | mark scarratt | london fashion week | graduate | television studio | use | review | testemonial | media express | KitPlus
Contributing Author KitPlus Click to read
What you see is what you get? Doubtful!
Robin Palmer The colour you see is not necessarily the same colour experienced by someone else looking at the same thing. It all depends on the viewer and the viewing conditions as well as the actual colour of the thing. People involved in broadcast, video editing and movie colour grading are probably unlikely to have been subjected to a compulsory Ishihara colour vision test.
Tags: iss074 | color | colour | broadcast | ishihara | test | patterns | sight | vision problems | pixel-scope | cel-soft | Robin Palmer
Contributing Author Robin Palmer Click to read
Robin Palmer and why flashy programmes are not so good?
Robin Palmer

Ever since the 1997 Pokmon phenomenon when hundreds of Japanese children were struck with epileptic fits provoked by a series bright red flashes in a TV cartoon programme broadcasters have become only too aware of PSE.

Tags: iss073 | flashy programmes | red flash specification | PSE problems | PSE test | Ofcom | Robin Palmer
Contributing Author Robin Palmer Click to read
PHABRIX hand held SxE solution for Quantel
N/A PHABRIX recently visited UK based Quantel, developers of innovative, world-leading content creation systems for broadcast, post and DI to find out how the company are deploying their six PHABRIX hand held SxE in its test department.
Tags: iss067 | quantel | phabrix | test and measurement | sq server | test engineer | phabrix sxe | N/A
Contributing Author N/A Click to read
Evolving Test and Measurement
N/A Time and accuracy are vital when producing content for broadcast. All broadcasters have strict schedules to work to, as well as visual and audio standards that need to be met. Effective testing and measurement (T&M) of any material that is to be transmitted is key to ensuring these parameters are adhered to, for both producer and broadcaster; get these wrong, or trust in inadequate equipment, and it could be very costly.
Tags: iss067 | test and measurement | s3d | pse | itu 1770 | itu 1771 | N/A
Contributing Author N/A Click to read
Testing times of a 4K world
N/A The term '4K' applies to some five slightly different picture formats with around 4,000 pixel horizontal resolution: all much bigger than HD. In fact roughly four times the total pixels required for 1920 x 1080 pixel high definition. 4K has been around for some years but was until recently only affordable by producers with mega budgets. Advances in camera sensor and display technology are now allowing manufacturers to offer 4K products at prices not too much more than their high definition equivalents.
Tags: iss067 | 4k | cel-soft | blackmagic | aja | test | measurement | N/A
Contributing Author N/A Click to read
Whats new in video monitoring
N/A The great majority of video monitoring displays in any modern broadcast presentation facility are LED-backlit LCDs. Reliable, space-efficient and economical on power, they produce excellent pictures for all but the most critical applications, usually in conjunction with one or more multiviewers to emulate a monitor stack.
Tags: iss059 | led-backlit | monitor | philips | dolby prm-4200 | preco cooltouch xp-2401hd | cooltouch rx-702hd | teletest cyclops hd | tvlogic 473w | tv logic lvm-074w | N/A
Contributing Author N/A Click to read
10 things you must monitor
N/A What are the most important things to monitor in a busy broadcast environment? We asked PHABRIX, one of the UKs leading test and measurement companies to list their top 10.
Tags: iss059 | test and m | eye pattern | jitter | easurement | monitoring | phabrix | RX2000 | logging | edh error handling | crc error handling | N/A
Contributing Author N/A Click to read
3D or not 3D, that is the question
N/A Peter Savage wonders if the buzz around 3D is really justified despite his willingness to don some 3D specs and head to the big screen in his local pub
Tags: iss054 | 3d | azule | finance | business | 3d in pubs | French Open | test cricket | Grandprix | Epsom | Ascot | Goodwood | Wimbledon | f1 | N/A
Contributing Author N/A Click to read
Real practicality in test and measurement
N/A We are quite an unusual company, a unique hybrid. On one hand Flotsam Films is an independent producer but we also provide full production capabilities and consultancy for other filmmakers.
Tags: Flotsam Films | iss054 | test and measurement | DS9000 DigiScope | hamlet | flexiscope | VidScope-HD | N/A
Contributing Author N/A Click to read
Test and measurement in digital television
N/A Lets be clear about this. Test and measurement tools are not there to make life difficult for you, they are there to ensure that we get the best quality pictures and sound through the long path to the home within a required technical specification. So yes, simply put, checking that we are getting the best out of the technology that black is black, white is white, and colours can be reproduced accurately within the tolerances broadcasters set is vital.
Tags: iss054 | test and measurement | pse | ask the experts | levels | amplitude | frequency response | channel separation | noise | balance | stereo | surround channels | phase | N/A
Contributing Author N/A Click to read
Whats new in broadcast test and measurement
N/A The test and measurement product category continues to expand as the broadcast business itself diversifies. Notable recent developments include higher resolution displays and a gradually increasing number of analysers which, having detected a fault, endeavour to fix it. No sign at NAB 2011 of any tablet-based test and measurement equipment but perhaps that is only a matter of time.....
Tags: iss054 | eye to eye | test and measurement | agama | cel-soft | dk technologies | dolby | hamlet | leader | murraypro | omnitek | phabrix | pixelmetrix | rohde schwarz | tektronix | vidcheck | N/A
Contributing Author N/A Click to read
Achieving Cost-Effective Monitoring of Critical AV Feeds
N/A Broadcasters once were able to transmit a signal up on the satellite and worry only about that feed. Now, with the growth and diversification of audio video (A/V) service handoffs, the points at which feeds enter the facility or are sent out to downstream targets such as cable operators, pay-TV services and other service providers, broadcasters have many more feeds to monitor.
Tags: iss054 | monitoring | test and measurement | slinging | volicon | QoE module | N/A
Contributing Author N/A Click to read
On the level
N/A In shooting 3D you naturally have two cameras and two lenses: albeit, there are some weird and wonderful single lens/single sensor contraptions out there. This usually means there are any number of ways each camera lens combination could be producing images with minor are major signal level differences. If these level differences are not dealt with on-set or in post-production, they could lead the visually objectionable artefacts in 3D portrayal.
Tags: 3d | iss054 | camera filters | dual stream | monitoring | test and measurement | cel-scope | cel-soft | N/A
Contributing Author N/A Click to read
Reviewed DSC Labs Chroma Du Monde
N/A Visual Impact were provided with a DSC Labs CamAlign CDM 28R Chroma Du Monde to test at their Teddington base this week, and unsurprisingly were impressed with what they found.
Tags: DSC Labs | Chroma Du Monde | iss054 | test chart | visuals | visual impact | HD ITU-R BT.709 | N/A
Contributing Author N/A Click to read
QC: An Inside Job
Bob Pank# The requirement for quality control grew up in the early days of television and depended on measurement instruments to check the video and audio going to air.
Tags: iss054 | quality conformance | qc | playbox | test and measurement | qcbox | Bob Pank#
Contributing Author Bob Pank# Click to read
Test Chest 3G and the Baptism of Fire
N/A Murraypro recently received a request from Manchester's Granada Studio Complex to borrow a Test Chest 3G for an evaluation they wished to undertake. While Murraypro were delighted to lend them a demonstration unit for their technical testing, they had no concept of any of the background story developing at the TV Centre. Mr Steve Craddock, Technical Manager continues....
Tags: iss049 | murraypro | review | test chest 3g | which-wire | sislive | outside broadcast | N/A
Contributing Author N/A Click to read
Modern Tools for Test and Measurement in Post Production
N/A Todays post-production facilities and practically the entire global multimedia industry, face a common issue: how to effectively eliminate the notorious problem of inconsistent loudness being pushed to the absolute limits.
Tags: rtw | iss044 | rtw | test and measurement | post production | ppm | audio | itu | ebu | loudness | touchmonitor | ebu r128 | bs 1770 | bs 1771 | N/A
Contributing Author N/A Click to read
Modern Test Techniques for Digital Audio Broadcast Systems
N/A The move to digital systems in broadcast audio means that engineers and systems integrators have had to evolve new means of testing equipment. Simon Woollard, Applications Engineer for audio test and measurement manufacturer Prism Sound, discusses some of the issues faced by todays broadcast engineers.
Tags: audio | iss039 | test equipment | aes | prismsound | multi-tone testing | jitter | bit activity | N/A
Contributing Author N/A Click to read
Eye to Eye: Whats even newer in test and measurement 2010
N/A 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.
Tags: test and measurement | eye to eye | 3d | iss039 | t&m | hamlet | harris | leader | phabrix | prism | rohde schwarz | tektronix | z technology | N/A
Contributing Author N/A Click to read
The Real Cost of Calibration
N/A Calibration is the cornerstone of measurement confidence. Badly calibrated instruments are liable to produce measurement errors which can then propagate throughout an enterprise and even to the end-users product¦ and beyond! This can have a detrimental effect on a companys reputation and profits, and could even have legal implications.
Tags: tektronix | test and measurement | calibration | iss039 | N/A
Contributing Author N/A Click to read
Location test equipment
N/A A number of years ago Hamlet gave itself the impossible task of developing the worlds first 3G, HD and SD capable, video and audio measurement and monitoring instrument that would provide, particularly location users, a wealth of functionality and be held and operated in one hand.
Tags: iss037 | hamlet | test and measurment | flexiscope | 3g | hd | sd | monitoring | handheld | N/A
Contributing Author N/A Click to read
A Guide to Testing IPTV: Technologies and Challenges Part 5
N/A Throughout this article series we have seen that IPTV network operators face many challenges and explained that effective test and measurement is key to overcoming these challenges. The majority of IPTV networks are still in the early stages of development and operators are therefore primarily concerned with optimising QoS parameters in order to get their IPTV systems working.
Tags: iss035 | iptv | probes | test and measurement | jitte | packet loss | ip-mpeg | file based content | N/A
Contributing Author N/A Click to read
The importance of measurements for eye and jitter
N/A If it hasnt got eye and jitter measurements, its about as useful as a chocolate teapot recalled Paul Nicholls, PHABRIX sales and marketing manager.
Tags: iss034 | test and measurement | phabrix | eye and jitter | N/A
Contributing Author N/A Click to read
A Guide to Testing IPTV: Technologies and Challenges Part 4
N/A In Parts 1-3 we introduced IPTV as an emerging broadcast technology, and discussed some of the technical challenges involved in successful delivery of IPTV services. We saw how the complexity of IPTV networks and the trade-offs in technology types can provide further challenges in delivering high QoS and QoE in IPTV delivery. In this part we will begin to explore how to test IPTV systems
Tags: iptv | tektronix | iss034 | iptv network | test and measurement | ip pathway | multi-layer monitoring | N/A
Contributing Author N/A Click to read
A Guide to Testing IPTV: Technologies and Challenges Part 3
N/A In parts 1 and 2 we gave a background to IPTV, and discussed some of the challenges faced by IPTV service providers. We focused particularly on the importance of Quality of Service and Quality of Experience, and the interrelationship between the two.
Tags: tektronix | iss033 | iptv | test and measurement | network architecture | video compression | mpeg-2 encoding | h.264 | avc | vc-1 | ip network | transmission | rtp | N/A
Contributing Author N/A Click to read
Ask the experts. Eye & Jitter
N/A Why should TV broadcast engineers be interested in adding Eye and Jitter measurement to their T & M facilities?
Tags: eye pattern | eye and jitter pattern | iss032 | omnitek | test and measurment | eye diagram | oscilloscope | waveform | tv studio | N/A
Contributing Author N/A Click to read
Guide to Testing IPTV Technologies and Challenges Part 2
N/A In this part we will begin to examine some of the challenges faced by IPTV service providers, and the importance of Quality of Service and Quality of Experience.
Tags: Tektronix | iptv | iss032 | qos | qoe | test and measurement | N/A
Contributing Author N/A Click to read
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