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LAS VEGAS, NV, APRIL 20, 2009 – Nucomm, part of The Vitec Group’s RF Extreme business unit, and a leading provider of digital and analog microwave systems for the broadcast industry, common carrier, cable, government, military and international marketplace, is debuting its ProQ Low Latency Audio Multiplexer (LLAM) at NAB 2009 (Booth C3707). Refined for maximum reliability and low latency, the ProQ LLAM has been optimized to work with the ProQ Receiver to facilitate multiplexing of audio into the ATSC signal. These two components used together create the complete ProQ Digital IFB system.

“As media outlets move to digital transmissions, many television stations are searching for new and better ways to provide IFB communications with remote on-air talent and crews,” says VP of Engineering, John Payne IV. “With the introduction of Nucomm’s ProQ LLAM, users are now able to send audio cuing over the DTV signal. The Nucomm ProQ Digital IFB system offers compelling advantages over traditional analog IFB systems as well as expensive cellular systems.”

Featuring the ability to multiplex as many as eight IFB channels while only occupying 200kbps of the ATSC signal, the ProQ LLAM single-rack-unit supports up to eight GPI signals to provide functions such as tally light control. The incoming audio is encoded by MPEG Layer 1/Layer2 audio encoders, multiplexed with the GPI, Ethernet and RS232 signals, and then inserted into the transport stream. A breakout box provides for the audio and GPI signals, connecting to the ProQ LLAM via a rear-panel 50-pin connector. The ProQ LLAM also features a full-color OLED panel for system monitoring and control.

When the ProQ LLAM is utilized in conjunction with the ProQ Digital IFB receiver, extended features are optionally enabled. These optional features include, full AES 128 or 256 encryption of the audio and data channels as well as a general purpose contact closure that can facilitate Remote Tally indication and the ability to push down future software enhancements over the ATSC channel. To facilitate remote controls Ethernet and RS232 encapsulation can be added as an option.

For more information about the Nucomm ProQ LLAM, email Nucomm at or contact the sales department at 908-852-3700.

About Nucomm

Nucomm is a worldwide provider of premier digital and analog video microwave systems (including COFDM and VSB) for the broadcasting industry’s portable and fixed link applications. Offering video microwave transmission equipment for the military, law enforcement, telecom and cable television circuits, Nucomm’s products have helped revolutionize live broadcast coverage of major outdoor events including sports, auto racing, marathons and parades. Nucomm, along with RF Central and Microwave Service Company, forms The Vitec Group RF Extreme, LLC business unit, part of The Vitec Group Broadcast Systems Division. For more information about Nucomm, visit

About The Vitec Group plc

The Vitec Group plc is acknowledged as a global leader in the supply of equipment and services to the broadcasting, entertainment and photographic industries and has established a reputation for technical excellence and superior engineering along with an astute business strategy which has seen it grow by acquisition. Innovation is a cornerstone of the Group’s activities and the organization is committed to a policy of continuous product development. With revenues (2007) of $546m (£274m) and over 2200 employees world-wide, its products are distributed in almost 100 countries, through a strong, fully-resourced distribution network or direct to the end user or corporate customer. More information can be found at