Broadcasting Networks – Broadcast Technology

Coaxial Cable According To Customer Specification

Posted by Michael Gonzalez on September 8, 2016 in Broadcasting Networks, Cable, Connectors & Conductor Machineries

Relemac Technologies Pvt. Ltd’s is one among the leading Coaxial Cable manufacturer of India. The company’s wide range of Cables and Wires include Digital coaxial cable, Industrial Braided Cables, Fiber Optic Cable, etc.

The Digital Coaxial Cables and other Coaxial Cables alternatives of the company are highly in demand and are designed according to the industrial norms of quality. The materials used for the manufacturing of coaxial cables are pure copper, poly aluminium tape, aluminum alloy wires and UV resistant PVC compound.

Customers can find it with specifications of their choice and the coaxial cables coupled with outstanding functional and technical specifications. As aluminum alloy wires with high tensile strength are used in the manufacturing, it guarantees maximum resistance in adverse conditions.

Buyers have a choice of Brading Type 50 ohms, Coaxial Power Cables, Digital Coax Cable, 50 ohms Corrugated Copper Tube, 50 ohms Radiating, Wholesale Coaxial Cables, etc.

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Global Satellite Dish Providers

Posted by Michael Gonzalez on July 2, 2016 in Broadcasting Networks, Television Broadcast, Transmission And Distribution

A satellite dish is a parabolic antenna in a dish-shaped type intended to receive electromagnetic signals from satellites and transmit data transmissions, for instance satellite television.

There are various types of satellite dishes which are available in the market. Following are the types

Motor-driven dish:

A dish is placed on a pole and run by a stepper motor. It can be managed & turned about to face any satellite position in the sky.

Multi-satellite:

Without relocating the satellite position, one can receive the signals from the satellite dish. It can receive from multiple positions.

VSAT:

VSAT is the most regular dish used which provides Internet communication for consumers and private networks for organizations. The full form of VSAT is Very Small Aperture Terminal.

Following is the list of service providers of Satellite Dish Providers:

Freesat: It is a free to air digital television satellite which supplies in the United Kingdom and a joint venture between BBC and ITV plc. Freesat provides services to users without any subscription amount.

Freeview: It is a terrestrial television platform of the United Kingdom started in the year 2002. It is operated by DTV Services which again is a joint business enterprise between BBC, ITV, Channel 4, and Sky. The Transmitting Operator is Arqiva.

Dish TV: It is India’s major Direct to Home or DTH operator and is a diversion of the Zee Network Enterprise. It even has its presence in Sri Lanka and it is there called as Dish TV Sri Lanka. It has subordinate company which is called as Zing Channel. The places of operations of Zing Channel are Kerala, Tamil Nadu, Andhra Pradesh, Maharashtra, Telangana, West Bengal and Odisha.

Tata Sky: It is a direct broadcast satellite television provider of India. It is a joint venture between Tata Sons, 21st Century Fox and Ternasek Holdings. The 21st Century Fox has 30% and Ternasek Holdings has 10% and Tata Sons have 60% stake respectively in Tata Sky.

DirecTV: It is an American based in El Segundo, California. It transmits its signals in United States, Latin America and the Caribbean, and is a subsidiary of multinational telecommunications corporation AT & T. Its satellite launched on 17th June, 1994.

Software Defined Networking- A New Networking Technology

Posted by Michael Gonzalez on May 11, 2016 in Broadcast & Management Systems, Broadcasting Networks, Content & Asset Management, Content Delivery, Network Management, Transmission And Distribution

As the industry moves towards towards an IP-centric facility, Evertz’ Software Defined Video Networking (SDVN) will make a niche and shall require content providers to make the transition to IP without bargain. Using Evertz’ MAGNUM for control and the versatile 3080IPX, SDVN can be applied throughout the facility in production, playout, and WAN distribution.

Sofware Defined Networking (SDN) has emerged from just a new technology that only could be understood only by the highly technical to a new ingredient for making network configuration and service management more efficient.SDN controllers, the main nerve centre of such emerging networks were earlier attributed to OpenFlow- the network control protocol that manages central traffic. The role of SDN controllers have evolved from low-level data switching and routing to to an integrated management of security policies, application settings and physical and virtual network configuration.

SDN is also a foundation stone for building up cloud infrastructure and a software data-center. The SDN has become the face of either a big strategic architectural change to networking from the time Ethernet came into the picture, or a bogus hype of sorts trying to belittle existing patterns of operational networking. There is a level of confusion though, in the SDN architecture like any other new phenomenon that grasps technological evolutions.

SDN as an architectural model is indeed groundbreaking, however for enterprises the most compelling SDN features don’t involve low level manipulation of traffic patterns, but rather operational automation, service orchestration and network programmability. In contrast, the SDN is bunk, “still does nothing”, crowd view the term as synonymous with OpenFlow and see little value in replacing perfectly useful network fabrics, whether using the alphabet soup of alternative standards like MLAG, SPB, TRILL or a proprietary equivalent, with dumb OpenFlow switches and flow controllers.

“The industry has moved past the SDN equals OpenFlow debate. “SDN has gained a more expansive meaning: It’s now about creating platforms for applications and gaining configuration control that enhances network automation and agility, hopefully lowering operational costs.” Indeed, at last fall’s Open Networking User Group (ONUG) meeting, attendees prioritized topics for proposed vendor RFIs or RFQs in the coming year. The top three were: integrated layer 4-7 network services, virtual network overlays, and branch software-defined wide area networks (SD-WANs). Others areas identified for work included traffic monitoring and visibility, white box networking, automated network segmentation, Linux-based automation, an abstract policy to define applications and IT Infrastructure dependencies. Outside of white box hardware, none of these had anything to do with software control over physical layer network flows, the raison d’etre for OpenFlow and the first wave of SDN controllers.”

So what new will SDN mean for the businesses is yet to see.

Broadcast Filters and Combiners

Posted by Michael Gonzalez on April 1, 2016 in Antennas Masts & Towers, Articles, Broadcast & Management Systems, Broadcasting Networks, Cable, Connectors & Conductor Machineries, Content & Asset Management, Studio Production, Transmission And Distribution

Broadcast sector is a very wide and dynamic industry. Not only in terms of delivering or broadcasting information through different media, but also the technical infrastructure behind the screen plays a very vital role for its successful deliverance. Filters and Combiners are the components that connect the technical infrastructure at studios, stations and even at domestic broadcast equipment like video, audio, data transformation service systems, etc.

In the recent years a lot of innovations evolved and came in availability to the industry. One of the major technical advancements in combiner and filters for broadcast industry is through the entrance of the modules. The combiner units forms the backbone of media set network. Shively Labs, a broadcast equipment designing and manufacturing company came up with balanced combiner modules that allow any number of stations to be combined into a common antenna. Systems have been designed to handle up to 21 analog stations, along with their digital counterparts. The frequency spacings as close as 0.8 MHz are routine, even on large systems and the design allows stations to be added in any frequency order without the need to reconfigure the existing combiner chain – making them ideal for sites where future expansion is planned.

Many industry events like NABSHOW are venues for companies to showcase and introduce their new products. Filters and combiners presented at NABSHOW 2012 attracted attention of the market. Radio Frequency Systems has added technology innovations and new models to its line of filters and combiners with the introduction of PeakPower+ at the event.

Trend of Combining Units

A lot of scope is recognized by the manufacturers for the combiners and filters. The evidence is the evolution ofCombining Units, which is a replacement for lot of technical material surrounded by the broadcast equipment.

The PeakPower+ line of filters and combiners is specifically aimed at safely sustaining the very high peak power of digital television, and represents a major breakthrough in coaxial filter technology.

By removing the peak power handling limitations imposed on digital transmitter filter & combiner systems, PeakPower+ TM allows broadcast operators to safely run their systems without fear of interruptions, and boost revenues by adding digital channels and services to their existing infrastructure, without having to upgrade to waveguide technology.

Features

Very compact for easy integration into equipment.
Very low insertion loss for filter size, (lowest IL for each size).
Highest power rating for size/class of filter.
Tunable over full UHF band (470 – 862 MHz)
Adjustable bandwidth, available for 6, 7 & 8 MHz channels for ALL global applications.
Symmetrical response characteristics.
External, non-invasive coupling adjustment
Tunable for both ETSI and ISDB-T critical and non-critical, and ATSC applications.
-5 to 55 degree ambient temperature operation.

DSL line combiners are from Pace plc that subscribers get “splittered” service, where DSL and telephone service are terminated into the home on separate lines. This has 2 types. Line Inline Filter with Giveback Jack and Line Inline Filter with Giveback Jack are the types available in this product.

Bandpass filters and Transmitting Combiners from Com-Tech Italia SpA are 4 types each.

UHF TV Filters / Combiners
VHF B.III TV Filters / Combiners
VHF B.I-II TV Filters / Combiners
VHF B.III DAB Filters / Combiners

The Bandpass Filter is a terrestrial broadcasting of the television signal for Analog TV (ATV) and Digital TV: DVB-T, DVB-H, ATSC (DTV), needs a high degree of linearity by the output amplifiers. So, the more an amplifier is pushed in power, the more it generates products from distortion within and outside the transmitted channel.

The Com-Tech Transmitting Combiners and Multiplexers are devices that can able to sum various inputs with different frequencies on a single output and this is a suitable application in television broadcasting as transmission of various channels take place on a single broadband antenna.

AISG/3GPP- compatible DC connections of Spinner Atlanta’s is a model that allows the transfer of control signals and power supply to antenna pre-amplifiers. The core advantage is that all the frequency combiners are suitable for indoor and outdoor installation.

While, in broadcast applications multi-channel combiners are used to combine the signals of two or several channels on to one antenna. Depending on the channel spacing Spinner has solutions for combining.

When the channels are close together or when retuning is required filter combiners are used mainly.
The starpoint and manifold combiners are usually designed as 2- or 3-way combiners.
The strechline combiners are 2-way combiners when spacing is larger than three channels.

The broadcast industry market scope and demand is there at every corner of the globe. The quality and robustness of its products and services from the industry players would build up an enviable reputation for the manufacturers.