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- General information: New product reference guide +
- Televes in the world: Dubai +
- FAQ: How can be powered the LNB even though the facility is not wired? +
- Your pictures: With a T100 PE Cable this would not be required +
- Talking about...: TRedess +
- Did You know...: Televes used a dish of 5m in a fair? +
- Training: Checking the return channel for CoaxData facilities +
- Ideas: How to distribute a High Definition TV channel (HDTV) at home +
- Real installations: New hospital in Lamego (Portugal) +
- New product: New T.0X modules featuring SID edition (Service_ID) +
New product reference guide
For installers of telecommunications infrastructures, the digital dividend means a great challenge. As market leader, Televes is already prepared to offer the full support needed by professionasl of the sector, with both products and technical support.
Thus, Televes presents the LTE Product Guide, a document on solutions that will help to reach the best TV signal: stable and free of 4G interferences.
Televes has developed a complete range of products designed specifically to minimize the potential influence of LTE services on DTT. All these products bear the Televes registered mark “LTE ready”.
In this product family highlights the Q-BOSS, the only device able to adapt any antenna of the market to this new scenario, turning your active or passive antenna into a smart device.
The intelligence of the BOSSTech system has also been incorporated into the new antenna DAT HD BOSS 790, as can be infered from its descripcion, along with important improvements both electrical and mechanicals, besides its optimization to be capable of rejecting signals from the LTE band.
On the other hand, Televes also offers a suitable set of rejection filters which are available as follows:
- Two types of connections: a) F connectors; b) easyF connection.
Televator, the Televes distributor in Naif market in Deira (Dubai) has opened its doors at the end of last year 2012.
This new point of sale contributes to the consolidation of the Televes commercial network in Arab market.
ISEP 5-6 December
On 5 and 6 December, Televes attended the Electrotechnical conferences about Electrical Machinery and Installations organized by the Porto Institute of Engineering.
The aim is to promote the meeting between companies, professionals, researchers, teachers and students related to the sector. In addition, Televes took part in the seminar “Telecommunication Infrastructures and big projects” promoted by ANACOM, telecommunications regulatory organism in Portugal
When pointing a dish equipped with a Fiber Optics LNB...
By using the optical fiber interface, installed on Meters H45 or H60, it is possible to make optical measurements directly through the fiber.
The power voltage can be supplied by connecting a coaxial cable and generating a voltage as if it were a conventional LNB
With a T100 PE Cable this would not be required
It is praiseworthy that an installer worry about the quality of its facilities.
But using a T100 Plus PE Class A 2155 Coaxial, it would not be necessary to protect the cable with a pipe, because its polyethylene sheath is totally weatherproof
We will focus on high added value video over IP solutions
TRedess is a real success story within Televes Corporation. The firm, which has been a key player in the digital switchover in Europe, is now ready to make the most of other oportunities which, despite everything, the digital dividend will provide. But it wants more, and it already has a good position in the video over IP business and in localisation systems. The firm’s Managing Director, Iván Rodríguez, explains the situation.
I would say that three main factors have allowed us to successfully manage large network deployment projects.
Firstly, technology, as TRedess has state-of-the-art equipment: Compact, reliable and capable of operating in locations where others were could not.
Secondly, our capacity to personalise the product to suit the customer’s specific needs and provide field support. Finally, belonging to Televes Corporation, which gave us ample manufacturing capacity to meet the deadlines.
Is the great opportunity now the digital dividend?
The legislative uncertainty around the digital dividend has led to one of the greatest problems for the development of the Broadcast sector. In any case, the dividend will lead to a revitalisation of the sector and an important field of work for installers.
But TRedess is not only developing the Broadcast line of business. What other niche markets is the firm focusing on?
Broadcast is TRedess’ backbone and it will continue to be a fundamental mainstay with a view to the spectrum and coverage changes brought by the digital dividend in Europe. This is where our greatest efforts will be placed in internationalisation. But, indeed, it is not the only chapter in our catalogue.
The second mainstay which supports the company is the video over IP business. We focus on this market because it has an important component of technological development which fits in well with TRedess’ profile. We have invention patents, such as the video watermarking system, which position us ahead of the game, and we fill focus on developing new high added value applications, such as advanced video analysis systems for a variety of technological applications.
Can you highlight a project?
Recently, TRedess has been selected to carry out a project for the supply and installation of equipment for the homogenisation and remote viewing of the video surveillance system of the Galicia Port Authority.
The aim is to connect all the systems with each area’s control centre as well as with the main centre.
Do you have plans to diversify beyond Broadcast and Video over IP?
Yes. We are working on new developments and in particular on a benchmark product that is RTLS (Real Time Location Systems). Nowadays, outdoor localisation is resolved using GPS and GSM-3G technologies, but indoor localisation is not and various solutions exist -WIFI, RFID, Ultra-Wide-Band, Bluetooth- depending on the critical nature of the precision.
TRedess has opted for a multi-technology platform, capable of the real-time localisation of an organisation’s critical assets or people in movement. Therefore, with RTLS from TRedess it will be possible to know on what floor and in which room a patient or a member of staff of a health centre is located, for example.
When developing internationalisation plans, what are the advantages of belonging to a multinational group like Televes Corporation?
It is a factor that sets us apart from our competition. Televes is a member of the Leading Brands of Spain Forum and that is a very important first impression. In addition, Televes’ large international commercial network gives us knowledge of the markets, proximity to customers and immediate response times
Checking the return channel for CoaxData facilities
In many cases, the facilities are not ready to support applications that use the return channel (5-60 MHz). The fact that the signals are on UHF DTT causes forgetfulness of “low frequencies”.
Homeplug CoaxData uses the return channel (7.5 to 30 MHz) to establish a data network in a coaxial facility. It is a Plug&Play system as long as the return channel has a minimum quality for transmissions.
The quality is assessed by a maximum attenuation (80 dB) and a minimum C/N. The better these parameters, higher transmission rate will be achieved.
For checking the network it is necessary to use a noise generator Ref 5930 (or a return channel simulator Ref. 7637).
Thanks to these screens, is detected the presence of a filter which limits the band to 14 MHz, which will result in a real reduction of the bit rate. Without such a filter (that allows connecting CoaxData and TelevesIntegra) the bit rate that could be obtained would be 200 Mbps.
In addition, it is found that the attenuation (if compared with the previous record of the output level of the noise generator) is correct.
CoaxData features a software application (Coaxmanager) which allows knowing the transmission bit rate, in addition to representing a frequency response
How to distribute a High Definition TV channel (HDTV) at home
So far, the distribution of a high definition video source in TV show rooms of large Shopping Centers, was possible only through the distribution by means of splitters and HDMI cables, then only visible to TV with HDMI input.
Today, thanks to COFDM modulator DigiSlot (Ref. 554501) and HDMI Encoder (Ref. 554803), you can deploy HD content on a RF coaxial network by connecting the HDMI output of the device that generates or receives this signal (PC, BluRay, TVSAT receiver, etc.) to the HDMI input of this encoder, by keeping the original quality (HD or 3D) on all television with integrated DTT HD (MPEG4).
If we need to receive this content on the TV of the showroom, even without an MPEG4 chip, a solution may be to create a SD version of this signal by extracting of A/V signals from the source device and sending them to the A/V Encoder (Ref. 554801) which will generate a DTT MUX output with the SD version of the HD source.
For these situations, Televés offers its DigiSlot COFDM modulator together with the HDMI Encoder Ref. 554803. By using these two devices, it is possible to deliver the original signal quality (HD or 3D) for all television sets.
In this way, all the TVs will receive a COFDM multiplex providing two TV channels containing the output of our source: one HDTV and one SDTV. The MPEG4 TV set can display HD content, while those with MPEG2 only will display the standard definition
New Hospital in Lamego (Portugal)
The new hospital of Lamego (Douro) in Portugal, is equipped with a Televes system that distributes 22 programs of TV and Radio to more than 100 outlets.
An antenna “DATHD BOSS” receives terrestrial channels while a high quality disc QSD850 Ref. 7903, equipped with a support multisatellite Ref 790901, captures signals from Astra and Hotbird.
The headend consists of 3 DVBS/S2-COFDM T.0X Transmodulators to process around 15 FTA services broadcast from satellites.
It has been added a A/V PAL TWIN T.0X modulator for generating two private programs.
The system is monitored and configured remotely via IP using a Headend Controller “IP CDC T.0X”.
The high quality coaxial cable installed in the network (TR165, Ref 214901 and T100PLUS LFSH, Ref 215101) allowed using only six Power Doubling DTKom line amplifiers for the entire cable run of 3500 m.
Implementation of the project was carried out by the JF Miguens installation company
New T.0X modules
The installer can change channels in a facility without the need for retuning TVs.
Televes adds two new modules to its range of transmodulators T.0X DVBS/S2-COFDM.
Ref. 563199 is a module that allows editing the Service Identifier (Service_ID). By editing this parameter, the installer will be able to change the available channels in a facility without the need for retuning the TV sets. This characteristic facilitates maintenance work in special facilities such as hotels, hospitals, nursing homes, etc.
Substitution of a channel by another one is a transparent operation for the TV set; on the other hand, the transmodulator itself issues an alert if the same Service_ID has been configured in more than one service so that it can then be changed.
By means of Ref. 563199, can also be edited the LCN (Logical Channel Number), which is the system used in other countries to order the list of channels in the TV sets.
The transmodulator Ref 564201 multiplexes again the signals broadcast from up to 3 different transponders.
This way, you can configure a multiplex to distribute content coming from three different packages of TVSAT.
By having two inputs, the signals can be from up to two different satellites, due to the fact that two of the transponders must belong to the same band and polarity.
Just like the Ref. 563199, the transmodulator Ref. 564201 also allows editing both Service_id and LCN.
Both transmodulators can be managed by means of the CDC unit (Headend Controller) and the Tsuite software, so that editing channel lists, as well as any other parameter, can be done remotely