Broadcaster Magazine
Feature

QuStream Broadcast Solutions, Harris, LG Submit to Mobile


QuStream Broadcast Solutions Unveiled

Toronto-based QuStream (www.qustream.com) is introducing its powerful and compact Integrity 600 range of broadcast-quality signal processing, conversion and distribution modules plus the Cheetah V5 DVI-I transmission.

The QuStream Integrity 600 modular system includes a high-speed chassis and range of video and audio distribution amplifiers. A full range of signal conversion and processing boards are on the way. The Integrity 600 FRM603 chassis is designed for both reliability and density with high-level redundancy. Features include redundant power supply and optional redundant control plus reference board for two power busses, two Ethernet busses and two reference signals to every card in the system. Also two sets of fans with individual tachometers for early warning of potential fan failure. The Integrity

600 FRM603 chassis accommodates up to 20 signal processing cards in addition to the control/genlock boards, enabling higher density and reducing system cost.

The midplane is unique with 3 Gbit/s signal busses between two Star slots and all other boards as well as between adjacent boards. The Star board slots permit full bandwidth system integration through CWDM fiber or other transmission standards. All boards including video and audio DAs can receive or send signals to other boards via the midplane. This makes the Integrity 600 exceptionally powerful for processing, conversion and distribution.

Modules currently available for the Integrity 600 series include the DDA-617, DDA617AA and DDA617DA series of down-converting video/digital-audio DAs with 270 Mbit/s to 3 Gbit/s 1080p inputs. Outputs comprise three reclocked HD, one menu-selectable HD/SD and three composite/SDI outputs with one of the three selectable as an AES audio pair. The DDA-617DA can optionally be configured to

output eight AES pairs (double-width panel) and seven AES plus one stereo audio (double-width) with the DDA617AA.

There are 16 digital video distribution models in the DVA-600 series, including the DVA617 (1×7), DVA6115 (1×15), DVA623 (dual 1×3) and DVA6214 (dual 1×7). All video DAs are designed for 270 Mbit/s to 3 Gb/s 1080p inputs with 1.5 Gbit/s models currently shipping.

The company’s new modular Cheetah V5 DVI-I transmission link enables long-distance delivery of DVI-I video or VGA component video and stereo audio via a single optical fiber or coaxial cable. It also allows DVI video to be routed via conventional routing switcher technology over a secure optical fiber signal path. Versions of the Cheetah V5-DVI are available as stand-alone modules or in a convenient 1 RU rack-mount kit. The optical fiber model has a range of up to 6 miles (10 km) in single mode. The fiber modules also provide inbuilt support for multimode and single mode cable up to 1200 ft (400m). A looping output is provided on the transmission feed for DVI or VGA local monitoring. The tuned data rate is 1.485 Gbit/s which allows signals to pass through HD-SDI routers without additional processing.

LG, Harris Submit DTV Technology for ATSC’s Mobile Standard

LG Electronics (www.LGusa.com) and Harris (www.harris.com), joint developers of the Mobile-Pedestrian Handheld (MPH) in-band mobile digital television system, have submitted a proposal to the Advanced Television Systems Committee (ATSC) for a standard that would enable broadcasters to provide high-quality digital television (DTV) signals to a wide range of mobile and portable devices. The ATSC is an international, non-profit organization developing voluntary standards for digital television systems.

The ATSC Technology and Standards Group requested proposals from companies offering systems aimed at facilitating the delivery of DTV programming and data to mobile, pedestrian and handheld devices via the digital broadcast signal. LG and Harris submitted a proposal detailing their technology for the delivery of mobile and handheld DTV, which is backward-compatible to the current standard.

Developed by Harris Corporation and LG Electronics Inc. and its U.S. research subsidiary, Zenith, the MPH in-band mobile DTV system provides robust DTV signals to mobile, pedestrian and handheld devices. Harris, a known leader of television transmission systems, and LG Electronics, a leading developer of receiver systems and DTV standards, designed MPH to be fully compatible with the ATSC A/110 standard for distributed transmission. As such, the system provides a highly compatible, commercially deployable system that has already been accomplished, tested and demonstrated.

Until now, reliable reception of signals transmitted by terrestrial broadcasters has not been possible in fast-moving vehicles or pedestrian handheld devices such as mobile phones or laptop computers. Unlike the cellular-based approach, MPH technology uses only the single, existing transmitter from commercial and public broadcasters. For broadcasters, this new technology enables new and potentially lucrative revenue streams.