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Friday, May 27, 2022

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Marshall Debuts Expanded Features For Its POV And PTZ Camera Lines

Thu, 26 May 2022 09:05:00 -0400

Marshall Electronics continues to update and add features to its POV and PTZ camera models with accessory add-ons and easy field-upgradable firmware. These updates are in direct response to customer requirements.

Marshall now offers three levels of Neutral-Density (ND) filters for its IP67-rated CV226 All-Weather Lipstick Camera and CV503-WP All-Weather Miniature HD Camera. In photography and optics, an ND filter reduces or modifies the intensity of all wavelengths, or colors, of light equally, giving no changes in hue of color rendition. It can be a colorless (clear) or grey filter, and is denoted by Wratten number 96, a labeling system for optical filters. The purpose of a standard photographic neutral-density filter is to reduce the amount of light entering the lens. Doing so allows the photographer to select combinations of aperture, exposure and sensor sensitivity that would otherwise produce overexposed video.

“We have been asked on many occasions about ND filters as many of our live production customers operate in direct sunlight and need to dampen its effects on video performance,” says Tod Musgrave, Director of Cameras for Marshall Electronics. “In addition to the ND filters, we have also added CGI and Free-D protocol support to our CV630 and CV730 PTZs, which enables two-way positioning communication between camera and control decks to produce more realistic VR and AR graphic overlay. Color Matrix is also now available for our Genlock cameras, providing deeper control of color to more closely color match other cameras in the broadcast production workflow.”

Free-D protocol support now comes standard on Marshall CV730 and CV630 models and is available for existing customers through a free firmware update. Free-D protocol is an industry standard protocol, supported by major AR/VR solutions providers. Through this firmware update, the CV730 cameras will feed tracking data over IP back to command central, using Free-D communication. This enables the cameras to directly respond with pan, tilt, zoom, focus, iris and axis position in real time, making VR/AR production simple and cost effective without the addition of other tracking devices or systems.

Marshall also adds Color Matrix to the CV566, CV568, CV366 and CV368 cameras. Color Matrix creates a more accurate color representation with master level, master phase, color level and color phase enhancements. Controllable remotely with Visca over RS485 from Marshall RCP controller, camera control software or third-party control decks such as Cyanview, Skaarhoj and others.

Additional new camera features from Marshall include support for the CGI command control function, enhanced vMix integration, new OBS plugins/docks and constant performance improvements of AF and Zoom tracking on all PTZ models. New firmware is now available as a free download on each product page on the marshall-usa.com website.

FCC Denies Wireless-Microphone Makers’ Plea for Vacant Spectrum Availability

Mon, 23 May 2022 09:24:00 -0400

In an Order on Reconsideration issued on May 11, the Federal Communications Commission denied a request from microphone-systems manufacturers Sennheiser and Shure to sustain a vacant channel in the TV bands reserved for wireless-microphone use. That channel was part of the FCC’s landmark 2015 Notice of Proposed Rulemaking intended to outline the post-auction landscape for wireless microphones.

In issuing the 2015 Notice, the FCC acknowledged that there would be fewer unused television channels in the TV bands post auction and after spectrum repacking, but it expected that at least one channel in the UHF band would be available for shared use by unlicensed white-space devices or wireless microphones. The matter engendered a lengthy legal and technical back-and-forth. In the ensuing debate, broadcasters argued against the idea, contending that the FCC’s 2015 proposal would limit future expansion and innovation potential for full-power TV stations. Broadcasters also said the proposal would require “novel engineering studies” that would be expensive and time-consuming, particularly for smaller broadcasters.

In responding to the most recent ruling, wireless-microphone users and those who make that equipment contended that the provisions for those wireless devices were necessary, “expressing strong support for the important functions performed by wireless microphones and support for the designation of one UHF channel for wireless-microphone use,” as per the Order On Reconsideration. “Issues are identified regarding the adequacy of higher-frequency alternatives to a vacant UHF channel, as well as the past costs imposed on wireless-microphone users when spectrum availability was moved.”

The National Association of Broadcasters, on the other hand, had argued that the preservation of at least one vacant channel on a nationwide basis “is no longer achievable” and that it was “entirely appropriate” to close this proceeding in light of the burdens to broadcasters.

Both Shure and Sennheiser filed replies to NAB’s opposition, with Shure suggesting that a vacant channel for wireless microphones be preserved in every market where at least two vacant channels are available. Sennheiser also filed an ex parte disagreeing with the commission’s assertion in the Termination Order that there is currently no vacant 6-MHz channel in multiple major metropolitan areas and including information purporting to identify a vacant channel suitable for wireless microphones used in nearly every top-50 market.

Ultimately, the FCC determined, “We find that adoption of the rules proposed in the 2015 NPRM would not strike the most reasonable balance that would best serve the public interest. … We make this determination in light of other actions taken by the Commission since the 2015 NPRM that will support wireless-microphone users and the burdens that the proposal would impose on broadcasters. Because we agree that the totality of these circumstances support the findings in the Termination Order, we reject the Petitioners’ claim that the Commission’s action was arbitrary and capricious.”

However, the commission added, “Although we have concluded that we should not proceed with the proposals in this docket, the Commission is committed to supporting white-space devices and wireless microphones and has pursued, and continues to pursue, avenues to ensure adequate spectrum availability for the important services they provide.”

FCC Commits $50 Million in Emergency Connectivity Funding

Wed, 18 May 2022 09:16:35 -0400

The Federal Communications Commission today announced that it is committing over $50 million in the 15th wave of Emergency Connectivity Fund program support, helping to close the Homework Gap. This latest round of funding is supporting 46 schools, 7 libraries, and 2 consortia across the country, including for students in American Samoa, Arizona, Colorado, Illinois, Ohio, and the US Virgin Islands. The FCC just wrapped up its third filing window for applications last week and will be announcing results in coming days.

“With help from the Emergency Connectivity Fund, millions of students across the country now have online tools to support their education,” said Chairwoman Rosenworcel. “This program is providing funding for nearly 11 million connected devices and 5 million broadband connections throughout the country, and moving us closer toward closing the Homework Gap.”

The funding can be used to support off-campus learning, such as nightly homework, to ensure students across the country have the necessary support to keep up with their education. Today’s announcement includes over $49 million in commitments from Window 1 applications and over $1 million in commitments from Window 2 applications.

More details about which schools and libraries have received funding commitments can be

found at https://www.fcc.gov/emergency-connectivity-fund.

InfoComm 2022: AIMS To Perform IPMX AV-Over-IP Interoperability Demo

Tue, 17 May 2022 08:23:00 -0400

The Alliance for IP Media Solutions (AIMS) will host its first live interoperability demonstration of Internet Protocol Media Experience (IPMX) — a set of standards-based protocols designed to ensure interoperability for AV over IP — at InfoComm 2022, June 8-10 at the Las Vegas Convention Center.

The first-of-a-kind demo will take place at AIMS Booth W1067 and will feature networking equipment and hardware and software nodes running both IPMX and SMPTE ST 2110, the standards suite on which IPMX is based. The demo will also highlight gateways between IPMX and other protocols, developer kits, and elements of IPMX-enabled AV-over-IP workflows.

“With this noteworthy IPMX interoperability demo at InfoComm 2022, we’re passing a critical milestone on the AIMS roadmap for open-standards-based media over IP,” says Sam Recine, chair of the Pro AV Working Group at AIMS. “We’re demonstrating the technical viability of IPMX in terms of multivendor interoperability, and that alone is exciting! But what’s also significant about this demo is the high level of industry support it signals, with leading manufacturers building IPMX support into their products — and more companies continually joining those ranks — as we move toward a more flexible, dynamic IP-based future for Pro AV.”

IPMX implements a standards-based approach based on SMPTE ST 2110, with features and capabilities that target the specific needs of the Pro AV industry. In addition to simplifying implementation of SMPTE ST 2110 and ensuring interoperability for AV-over-IP systems, IPMX incorporates other features tailored to Pro AV installations. These features include AMWA NMOS IS-04 and IS-05 for discovery, registration, and connection management, as well as specifications for copy protection and security.

Demo partners include Arista Networks, Cisco Systems, intoPix SA, Macnica, Matrox, Ross Video Limited, and many others.

FOR-A Takes Home TV Tech's Best of Show Award for FA-1616 Multi-Signal Processor

Mon, 16 May 2022 08:08:00 -0400

FOR-A Corporation was honored with a TV Tech Best of Show 2022 Award for its FA-1616 multi-channel signal processor. With its software-defined architecture, the FA-1616 supports the industry’s rapid shift from Serial Digital Interface (SDI) to Internet Protocol (IP). Because broadcasters must protect their current hardware investment, FOR-A has developed a new line of products, including the FA-1616, that provide a flexible, cost-effective gateway to the IP world.

“With live events coming back to the forefront and becoming commonplace again, this year’s Best of Show Awards were expected to be more competitive than ever — and they didn’t disappoint,” says Tom Butts, Content Director for TV Tech. “The amount of entries matched the positive attendance at this year’s show and selecting the winners proved to be challenging. Those who have won can know that their solution was truly outstanding and impressed our judges, as all entries received were of a high level.”

The TV Tech Best of Show 2022 Awards recognize those outstanding products and solutions from the technology and media industries exhibited at this year’s NAB show in Las Vegas, with entries being considered for their innovation, prowess and capabilities. The Awards have run for several years and are fiercely competitive, with hundreds of nominees throughout various categories. The FA-1616 has been given this accolade following a rigorous judging process which evaluated value for money, feature set, ease of use and the general merits of what it can offer users.

“We’re delighted that FA-1616 has been recognized by the TV Tech judging panel,” says Satoshi Kanemura, President, FOR-A Corporation of America. “This award reaffirms our belief that a software-defined architecture is the ideal solution for a cost-effective migration from SDI to media-over-IP. Adding new functionality through software means the customer can configure the system to their needs, without additional hardware investment. It also means that hybrid production, using a variety of signal formats, can be easily accomplished. This kind of agile solution is what drives FOR-A, and the kind of innovative thinking that powers all FOR-A products. We are very thankful for this recognition from TV Technology.”

With SMPTE ST-2110 and ST-2022 I/F protocols, the FA-1616 is an optimal gateway between SDI and IP as well as IP to IP and SDI to SDI – which is ideal for SDI & IP hybrid operation. The FA-1616 multi-channel signal processor series includes three models. Each provide either 16 input/16 output, selectable 16 I/O, or selectable 32 I/O – allowing the user to configure the system to suit their needs.

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Daily Tech Term

Standing Wave

A stationary waveform, created by multiple reflections between opposite room surfaces. At certain points along the standing wave, the direct and reflected waves cancel, and at other points the waves add together or reinforce each other. In a room prone to standing waves, this resonance causes drastic changes in the perceived loudness of sounds at certain frequencies based on where you may be listening.

WeeklyTechTip

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Weekly Tech Tip

 

The ABCs of Multimeter Safety from Fluke

Where safety is a concern, choosing a multimeter is like choosing a motorcycle helmet, if you have a “ten dollar” head, choose a “ten dollar” helmet. If you value your head, get a quality helmet. The hazards of motorcycle riding are obvious, but what’s the issue with multimeters? As long as you choose a multimeter with a high enough voltage rating, aren’t you safe? Voltage is voltage, isn’t it?

Not exactly. Engineers who analyze multimeter safety often discover that failed units were subjected to a much higher voltage than the user thought he was measuring. There are the occasional accidents when the meter, rated for low voltage (1000 V or less), was used to measure medium voltage, such as 4160 V. Just as common, the knock-out blow had nothing to do with misuse - it was a momentary high-voltage spike or transient that hit the multimeter input without warning.

To protect you against transients, safety must be built into the test equipment. What performance specification should you look for, especially if you know that you could be working on high-energy circuits? The task of defining safety standards for test equipment is addressed by the International Electrotechnical Commission (IEC). This organization develops international safety standards for electrical test equipment.

The good folks at Fluke have put together a truly informative and important guide on the subject. It describes in full detail the how's and why's of the subject and how to get the job done and stay safe every time. You can read the entire paper here.

Fluke Scopemeter 2Ch 200MHZ 2.5 GS/s CAT IV Rated Color - Americas

 

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