PHABRIX QxL Series used in NVIDIA Rivermax SDK for independent solutions testing and analysis

Thatcham, UK – 19 April 2022: PHABRIX, a broadcast test and measurement innovator, has announced that its QxL rasterizer series, including NMOS analysis tools and the Extended Ultra High Definition (EUHD) option, are being used extensively in the NVIDIA Rivermax SDK. The QxL Series has been deployed by NVIDIA Rivermax during new product development to ensure compliance with all of the reference standards, including SMPTE ST 2110, and to independently validate timing and tool chains.

NVIDIA Rivermax makes use of two QxL features that are contained in the latest software release, V4.5, which was announced in March. As well as a suite of AMWA Networked Media Open Specification (NMOS) tools that provide flexibility when integrating with an NMOS controller and related network topology, V4.5 includes an updated NMOS receiver for QxL that offers more detailed information on the state of the NMOS API to assist with the analysis and debugging of NMOS interoperability.

In addition, NVIDIA has been utilizing a new EUHD option for the QxL Series that provides support for analysis and generation of UHD/4K YCbCr/RGB 444 formats in the range 47.95P – 60P.

Prinyar Boon, Product Manager at PHABRIX, comments: “The NVIDIA Rivermax SDK team has been using our test and measurement technology for a long time, and along the way has given us lots of valuable feedback that has informed subsequent generations of product development. QxL has unique capabilities when it comes to real-time analysis and validation, which help in the development of new tech solutions like NVIDIA’s.”

Richard Hastie, Senior Director Enterprise Development at NVIDIA, said, “There is no other solution on the market that can analyze and test multiple flows – red and blue, RGB 4:4:4, 12-bit uncompressed, SMPTE 2110 – in real time. Real-time analysis is the capability which really distinguishes QxL for us – and it has proven to be invaluable for our Rivermax solutions development at NVIDIA.”

One of these solutions, RivermaxDisplay, which turns any Windows workstation or server with an NVIDIA networking card and professional GPU into a 2110-compatible source, is set to be showcased at the PHABRIX booth (C6118) at the 2022 NAB Show, which takes place at the Las Vegas Convention Center from 23-27 April.

­­About NVIDIA

NVIDIA’s (NASDAQ: NVDA) invention of the GPU in 1999 sparked the growth of the PC gaming market and has redefined modern computer graphics, high performance computing and artificial intelligence. The company’s pioneering work in accelerated computing and AI is reshaping trillion-dollar industries, such as transportation, healthcare and manufacturing, and fueling the growth of many others. More information at


PHABRIX is a world leader in broadcast test and measurement, with a full range of portable and rackmount systems for rapid fault diagnosis, compliance monitoring, and product development. Technology strengths include IP video stream generation and analysis, advanced HDR/WCG visualization, and ultra-responsive physical layer analysis. The product portfolio includes the top-of-the range Qx Series for hybrid IP, 4K/UHD, and HDR/WCG signal generation, analysis, and video/audio monitoring. The advanced, rackmount Rx range provides fast intermittent fault diagnosis in 3G/HD/SD-SDI environments, using video capture and remote access. For applications demanding ultra-portable instruments, the company also offers the award-winning Sx range. PHABRIX maintains its headquarters and manufacturing facilities in the UK. PHABRIX is a member of the Leader Electronics Corporation group of companies.

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