Headend & DishTV


Headend & DishTV

SMATV satellite tv Channel IF, RF, COFDM, Digital System installer in UAE.

SMATV stands for Satellite Master Antenna tv, and refers to a system that uses multiple satellite and broadcast signals to make one integrated cable signal for distribution to a cabling network.In different words, with a SMATV system you can become your own in-house cable company.


We install a satellite dish and television antennae to receive programming from satellite suppliers and native broadcast networks. These antennae feed into several racks of electronic equipment that tunes within the channels you decide on for your cable lineup, and combines them into one cable signal.

If you’ve got existing cable service, the transformation is commonly as simple as disconnecting the cable company feed and plugging within the new system. If there’s not a cable plant in situ, we can set up and install a cable network for you.

Master Techno vision can offer a full, design, installation and maintenance service for SMATV systems. From 25 channels to 100 channels (DIRECT INTO TV # operating without RECEIVER), unengaged to Air or subscription channels, all equipment is of an expert standard. whether this can be a new installation or an upgrade of AN existing system, it’s carried with the least amount of disruption.



The head-end is that the master distribution center of a CATV system by that incoming tv signals from video sources (e.g., DBS satellites, native studios, video players) are received, selected, amplified, and re-modulated onto TV channels for transmission down the CATV system.

The incoming signals for headend systems include satellite receivers, off-air receivers and alternative types of transmission links. The signals ar received (selected) and processed using channel decoders. Headends normally use integrated receiver devices that mix multiple receiver, decoding and decryption functions into one assembly. once the headend receives, separates and converts incoming signals into new formats, the signals are selected and encoded so they will be retransmitted (or stored) in the CATV network. These signals ar modulated, amplified and combined so they will be sent on the CATV distribution system.

Integrated Receiver Decoder – IRD – Receives and decodes incoming video and media channels.

Off Air Receivers – Receives, selects, and demodulates native broadcast channels.

Encoders – Digitizes media (if in analog form), compresses, and formats the data and control signals to be transmitted.

Transcoders – Adapts media formats (such as from MPEG-2 to MPEG-4).

Rate Shaper – Adjusts the transmission rates of each channel to better work the transmission channel data rate.

Channel Modulators – Converts the digital video signals into modulated RF signals.

Channel Processors – Receives channels, processes the media (such as descrambles or decodes), and remodulates the signal to a desired RF channel.

Channel Signal Combiners – Combines multiple RF channels onto a single cable keeping the signals from one RF channel from pushing into a transmitter.

A CATV system has expanded to include multiple regions including native headend locations, which can be distributed over a large geographical area. native headends could also be connected to regional headends and regional headends could also be connected to a super headend. to reduce the price of a CATV system, headend systems can be shared by many distribution systems.

This figure shows a diagram of a straightforward head-end system. This diagram shows that the head-end gathers programming sources, decodes, selects and retransmits video programming to the distribution network. The video sources to the headend typically include satellite signals, off air receivers, microwave connections and other video feed signals. The video sources ar scrambled to prevent unauthorized viewing before being sent to the cable distribution system. The headend receives, decodes and decrypts these channels. this instance shows that the programs that will be broadcasted ar supplied to encoders and modulators to produce television channels on multiple frequencies. These channels ar combined onto one cable by a channel combiner.

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