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InfoTeleves 37 (August 2016)

General Information

The second Digital Dividend takes the stage

While the first Digital Dividend is still fresh in our memory, serious plans are coming forth regarding the second. The European Union has set 2020 as the deadline for the new DTT frequency migration. This time around DTT will be evicted from the 700 MHz band to allocate the next generation of 5G mobile services. EU members must present their transition plans before June 30th, 2017. Although extensions could be granted up to two years under certain conditions.

The second Digital Dividend confines DTT within the 470 and 694 MHz band, a scenario that counts with the approval of the World Radiocommunication Conference. However, the process renders some questions, and the European Broadcasting Union has already warned of "heavy burden" for Operators managing the reallocation.

DVB-T2 can solve the problem of accommodating the current DTT channel offering in a lower frequcy band allocation withing the radioelectric spectrum

One of the issues to be resolved is how to accommodate the current channel supply, with the obvious need to continue providing services in High Definition, while in a lower frequency band section of the radioelectric spectrum. The solution must inevitably go through the evolution from DVB-T to DVB-T2, the second generation of European digital terrestrial television system, which provides greater robustness and, above all, increases the spectral efficiency. Italy and the United Kingdom have already launched commercial services under this standard, while others like Germany and Austria have begun to adopt it. With DVB-T2 the integrity of DTT could be maintained, something that seems indispensable given the social importance of traditional broadcast television, still remaining as one of the favorite sources for information and entertainment for 250 million europeans

Televes in the world

ANGACOM (Cologne-Germany) & Essential Install Live! (Esher-UK)

(Cologne-Germany) 7 - 9 June

Televes TForce technology has caused great admiration and quite a stir in ANGACOM 2016.

TForce represents and exponential leap towards electronic component miniaturization, allowing Televes to develop a new generation of products with unmatched technical specifications.


Essential Install Live!
(Esher-UK) 6 - 7 July


This trade show is oriented toward sophisticated audiovisual solutions with a special focus on deployments for the Hospitality sector, where Televes had a chance to showcase the FibreData and CoaxData range of solutions, as well as new products like Avant 9 and new Encoders. The event is generating incremental attention amongst professional installers of data and television networks each year  

Your pictures

Olympic inspiration with Televes


Inspired by the European Cup and the Rio Olympics, some people came to think about the importance of Televes in the quality reception of the sports broadcasts.

There is no doubt that the best way to guarantee a good sports day is to use the best equipment in the market. By using Televes you can guarantee that your TV sets receive the best possible signal... What we cannot guarantee are the match results! 

Technological trens

The ever increasing need to protect digital contents

The new formulas for the distribution of digital contents highlight the need to protect the rights on the distributed contents.

Content protection discussion is in the rise again due to the issues inherent to the rights and licences of new commercialization and consumption models, both in managed and non-managed networks, specially in the latter. The transition of audiovisual contents to HD and the gradual introduction of UHD contents are accelerating the trend towards protection from the content providers, who own the content rights and whose core business is their commercialization.

Digital distribution involves significant risks relative to non-authorized redistribution of works which rights are owned by content providers.The technologies used for the protection of these works should be transparent to the user, who should not detect any changes in image or sound quality.

A conditional access system includes a combination of scrambling and encryption that prevents non-authorized users from viewing the contents. Encryption is the process that makes sound, image and data unintelligible.

The encryption process protects the passwords that have to be transmitted together with the encrypted signal, so that only authorized users are able to decode the signals. If there is a network operator between the content provider and the final user, the operator will have to select a conditional access system and provide the required resources (headend level encryption, STB, CAM, Smart Cards) in order to limit the distribution of the contents.

In case of content distribution without the participation of a strictly speaking network operator, like the distribution in a Hospitality network (e.g. hotel or similar environment), the distribution is usually carried out by means of transmodulators or encoders. In both cases, the signals travelling across the network are open, using de-encryption elements such as STB or CAM, but in this case the use of a conditional access system is not useful. Mainly due to the huge management complexity involved, especially in the absence of an actual network operator.

This is why the selected method in this case is forensic watermarking; it inserts a mark in the distributed signal that is invisible to the user. This mark identifies the signal source and could potentially identify the receiver, so that the trace of the whole distribution is registered.

There are other options, such as incorporating a DRM into the distributed signal. It works in the same way as the conditional access, encrypting both signal and passwords. The de-encryption by the user is performed by a CAM inside the TV set. In this way, the signal is not transmitted in clear on the distribution network and only users with a CAM can access the contents. There is still one variation to this system, consisting in incorporating the de-encryption in the TV receiver, which simplifies the contents protection management.

In Televes we follow very closely the evolution of the content protection services in parallel with the evolution of digital technologies, providing solutions to both network operators and content distribution infrastructure managers

Did you know...

...Televes begun supplying equipment in 1990 for Sky Television?


Televes signed a contract with the British broadcaster Sky Television to supply satellite reception equipment. This agreement was open-ended to allow Televes to deliver technological solutions to fulfill the British television company´s needs. By that year, Sky already reached more than 6 million users with four channels of European coverage


How many T.0X modules can I install in my housing and frames?

We provide you with our units' dimensions so you can plan your installation in advance.

The expert says

Thanks to these measures and graphics, you will be able to know how many modules you can fit in each cabinet or frame. Televes uses standard dimensions in order to make installation easier for our technicians. These dimensions are taken from a Eurocard (standard European format for PCB). Vertically, we find the U (Unit Rack) equivalent to 1.75 inches (44.45 mm), horizontally we have the HP (Horizontal Pitch), equivalent to 0.2 inches (5.08 mm).

Below you will find the dimensions of the main modules in our headend series

Supports and Cabinets HP
5301 19’’ Rack frame  84
567201 19’’ Wall support  54
5072 Lockable Cabinet 498mm  84
5069 Lockable Cabinet 648mm  112
5235 Lockable Cabinet 948mm  168


Equipment dimensions’ list




Power Supply Unit (T.0X/T.12)  14
- T.0X (Transmodulators, CDC,... normal chassis equipment)  10
- T.12  7
5673 T.0X Blank Plate 10
507312 T.12/T.05 Blank Plate  7


Optical fibre HP
234220 T.0X EDFA  14



T.0X Splitter 2D/4D  10
T.0X Splitter 8D/16D/32D  18
234228 T.0X EDFA 1E/8S  22


Basic configuration of a CoaxData installation

Once the coaxial network has been certified, the verification of a CoaxData system consists of four easy steps.

The adjustment of a CoaxData installation is carried out via CoaxManager, the system's configuration tool, and it takes four easy steps.

1. Running CoaxManager from the master, you need to check the configuration options:

a.    Network type: MDU/MTU for professional applications (traffic between slaves is not allowed)
b.    Equipment Configuration as Master.
c.    Coaxial network  / PLC.
d.    Transmission mask: Mask3 is recommended for new generation devices.

Network password can also be modified (default value is HomePlugAV) to prevent other CoaxData elements from accessing the network.

2. Connectivity verification in the coaxial segment.
Under the Network tab, you should be able to identify all the slave equipment connected to a master. Likewise, the available bandwidth on each Master-Slave link is also displayed. Double-clicking on each of the links displays the carrier performance in the occupied bandwidth.

3. Connectivity verification in slave's layer 3 769301.
The IP information obtained by the DHCP client is displayed under the Network Information tab. If both IP address & mask are correct you should be able to surf the Internet.

4. Configuration of slave 769301.
At this point it is worth reminding the readers of a previous article (FAQs - Info of April 2016) that explained how slave 769301 consisted of two blocks: one CoaxData slave that accesses the WAN, and one router that includes several interfaces and is part of a LAN. In order to configure the device's slave block, you need to previously configure it as an “Access Point”.

Under the Network tab, select option “Enable Access Point Mode”, then, by means of the CoaxManager application, proceed to perform the required configuration changes (network password, etc.). Once the configuration changes are completed, disable the “Enable Access Point Mode” option


Headend monitoring with CDC

The combination of a headend controller and the T.Suite software, allows for remote configuration of a T.0X headend. Usually, this task can only be carried out by the installer authorized staff, who are the only ones having access to the configuration of the headend modules.

However, the monitoring and configuration of the control module itself can be performed from any web browser without the need for T.Suite.

The CDC module generates a web page associated to port 15706, so that by introducing the socket (IPCDC:15706) into the browser, you can access both its parameters and the headend status.

By means of remote access tools such as VPN or NAT, that page would be accessible from virtually anywhere, making headend supervision an easy and quick task, that could be carried out by means of any device with access to the Internet, regardless of its operating system


Belmond Hotel Caruso (Salerno - Italy)


Installer Tesser Antenne from Treviso, in the Italian province of Salerno, has carried out the deployment of a full T.0X headend that generates 150 TV services.

The deployment consisted of 5 parabolic dishes with their respective optical LNBs, and 17 T.0X transmodulators connected to NevoSwitch series' multi-switches, remotely managed by a Headend Controller. The generated channels are filtered and amplified by means of an AVANT amplifier, before being injected into the coaxial distribution network.

This installation is a good example of a modern headend where several technologies come together, such as optic fibre, transmodulation and remote management via IP




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