Rapport d'alternance Technicien supérieur électronique Bruno BARTOLI 2008Bruno BARTOLI
Rapport d'activité en tant que Technicien supérieur en électronique au sein de Thomson GrassValley (2007-2008)
Mon activité principale était de paramétrer des émetteurs hertziens et TNT en fonction de l'endroit dans le monde, où ils allaient être mis en service.
TELE-audiovision is the world's largest digital TV trade magazine, established in 1981. The document discusses the growing popularity of different operating systems for digital TV receivers, including Linux, Android, and Xbox-based systems. It notes how user preferences and technologies are rapidly changing. The editor believes an adaptable software design is important and that users primarily want intuitive navigation and functionality from their receivers, regardless of the underlying system. TELE-audiovision aims to objectively test and evaluate the latest receivers and technologies.
This document summarizes the WORK Microwave Handheld Satcom Test Source signal generator. It can generate signals from 50-180 MHz and 950-2150 MHz with precision to serve as a reference for measuring complex analog systems. It has two independent synthesizers, allowing it to generate two signals simultaneously for measuring intermodulation of high-frequency converters. Its adjustable output power level from -45 to -5 dBm in 0.5 dB steps enables measuring the 1 dB compression point and conversion gain of converters. The portable generator can operate on its internal battery or via USB, making it a versatile testing device.
Rapport d'alternance Technicien supérieur électronique Bruno BARTOLI 2008Bruno BARTOLI
Rapport d'activité en tant que Technicien supérieur en électronique au sein de Thomson GrassValley (2007-2008)
Mon activité principale était de paramétrer des émetteurs hertziens et TNT en fonction de l'endroit dans le monde, où ils allaient être mis en service.
TELE-audiovision is the world's largest digital TV trade magazine, established in 1981. The document discusses the growing popularity of different operating systems for digital TV receivers, including Linux, Android, and Xbox-based systems. It notes how user preferences and technologies are rapidly changing. The editor believes an adaptable software design is important and that users primarily want intuitive navigation and functionality from their receivers, regardless of the underlying system. TELE-audiovision aims to objectively test and evaluate the latest receivers and technologies.
This document summarizes the WORK Microwave Handheld Satcom Test Source signal generator. It can generate signals from 50-180 MHz and 950-2150 MHz with precision to serve as a reference for measuring complex analog systems. It has two independent synthesizers, allowing it to generate two signals simultaneously for measuring intermodulation of high-frequency converters. Its adjustable output power level from -45 to -5 dBm in 0.5 dB steps enables measuring the 1 dB compression point and conversion gain of converters. The portable generator can operate on its internal battery or via USB, making it a versatile testing device.
This product report summarizes high-frequency filters manufactured by MFC. It discusses how MFC produces highly specialized filters for applications such as WiMAX to prevent interference. It also explains how high-pass and low-pass filters can be combined to replace separate frequency filters. The report provides details on the benefits of HF filters, describing how they eliminate unwanted signals on certain frequencies to prevent interference and equipment malfunctions.
The document summarizes the test results of the Icecrypt S3700CHD triple tuner PVR receiver. It has an elegant front panel with a VFD display and smartcard readers. The back panel features three tuner inputs, HDMI, network interfaces, audio/video outputs, and an RS232 port. It has a powerful CPU and memory. It performed well in tests, with quick channel switching, stable multimedia features, and the ability to record two channels while watching a third. The software is easy to use with features like favorites lists, EPG integration, and an on-screen manual. It also has integrated multimedia apps and plays various video and audio formats smoothly.
1. The document describes how to set up a self-made IPTV system using inexpensive hardware like a Raspberry Pi.
2. A Raspberry Pi board running XBMC software can be used as an IPTV receiver and connected to a TV to receive streaming video channels.
3. TSReader Pro software on a PC is used to receive TV signals, demux channels, and stream them over the network to be displayed on the Raspberry Pi IPTV receiver.
The document discusses proposed extensions to the DVB-S2 satellite broadcasting standard to improve efficiency and accommodate higher data rates. The extensions include reducing transponder roll-off factors and side lobes to allow transponders to be placed closer together, using wider bandwidth transponders, adding a new 64 APSK modulation, and providing more modulation and coding options. These techniques could increase data rates by 20% for direct broadcasting and up to 64% for professional services. The extensions aim to enable services like ultra-high definition TV that require greater bandwidth capabilities.
ELNET is a digital TV wholesaler and retailer located in Iceland. It offers a wide range of digital TV products from small DVB meters to large DVB transmitters at its 600 square meter premises. ELNET believes terrestrial and satellite DVB reception will continue to be important along with emerging fiber optic TV distribution. Asmundur Einarsson has owned and managed ELNET since 2000, growing it to serve Iceland's small and spread out population across its large land area. ELNET supplies over half of Iceland's digital TV transmitters and sells 200-300 satellite dishes annually in sizes from 85cm to 3m.
The document summarizes testing of the Deviser S7000 multi-norm digital TV signal analyzer. Key points:
- Measurement values from the S7000 closely matched five reference analyzers, confirming its precision.
- Its integrated real-time spectrum and waterfall diagrams make antenna alignment extremely easy.
- These display tools allow technicians to quickly optimize antenna position for strongest satellite signals.
- The S7000 was used to successfully troubleshoot interference in a home's CATV distribution system.
Marcos Benni has established a new office in Jundiai, Brazil to expand his popular BSD digital TV forum and launch an e-commerce site called bsdshop.com.br. The site will feature instructional videos and sell products related to digital TV reception, including satellite dishes, LNBs, cables, and receivers. Benni has also set up an IPTV showroom and plans to relaunch his Radio BSD internet radio station. With 400,000 monthly visitors, the BSD forum is one of the largest in Brazil and keeps users informed with news and channel listings from Benni's array of reception dishes installed at his new office.
The document summarizes the features of the Amiko Mini HD satellite receiver. It is a small receiver measuring 15x11x3.5 cm and weighing 250g. It has HDMI and USB ports, supports DiSEqC, and can automatically detect satellites and the TV resolution. It also has network features like accessing YouTube and weather forecasts. The receiver can record two channels simultaneously while watching a third and has an eight event timer.
1. The document tests and reviews the AB IPBox Prismcube Ruby, a new satellite receiver built around the Xbox Media Center operating system.
2. It has many features like support for 51 languages, DiSEqC protocols, overscan adjustment, and the ability to manually select the time signal channel.
3. The receiver impressed the reviewers with its design, channel listing capabilities, EPG functionality, and ability to record two channels simultaneously while buffering a third.
GlobalInvacom's fibre optic technology called FibreIRS has been very successful with over 2 million households connected in its first 5 years. The technology started with distributing satellite signals via fibre optic cables and has expanded to include terrestrial TV signals. Sales of fibre optic products have increased 20% annually with the largest markets being Northern Europe, MENA, and Southeast Asia. GlobalInvacom continues developing new products and versions of FibreIRS to increase connections and capabilities.
This document is the September-October 2013 issue of TELE-audiovision International magazine. It includes summaries of product reviews and tests of digital TV equipment, as well as company profiles, industry news, and analysis. TELE-audiovision is the world's largest digital TV trade magazine with over 350,000 readers globally.
Speedcast is a satellite TV uplink operator located in Barueri, Brazil. It provides uplink services for many Brazilian TV channels including Rede TV and SBT. Speedcast was founded in 2003 and began providing VSAT services before switching exclusively to TV uplinking in 2005. It now operates seven large satellite dishes and was the first in Brazil to uplink an HDTV signal in 2008. Speedcast uplinks not only regular TV channels but also provides uplinking for business TV customers like Volkswagen. It has 15 employees at its headquarters and additional field technicians serving customers across Brazil.
Öreind is a small electronics repair and installation business located in Kopavogur, Iceland that celebrated its 25th anniversary in October 2013. It was founded by two partners, Baldur Sveinsson and Sigurour Gunnarsson, who both have experience repairing home electronics. Öreind installs antennas and satellite reception systems and sells a variety of related components, generating around 40% of its revenue from satellite products. While satellite remains important, the company sees its future growth coming from IPTV and is focusing on expanding its offering of IPTV installation materials and components.
1. The document provides a test report of the MKTech IS1-19HD hybrid satellite and terrestrial PVR receiver.
2. The receiver has a removable hard drive frame, excellent channel scanning abilities, strong signal sensitivity, and versatile network functions when connected to the internet via ethernet or included WiFi dongle.
3. While the receiver has thoughtful software and useful functions, limitations include an inability to manually enter WiFi network SSIDs.
The document tests a new DVB-C signal meter called the Horizon HD-CM+. It summarizes that the meter is easy to use, has a perfectly readable display, offers a wide range of professional functions, and provides accurate measurement results, making it well-suited for professional cable installers. The meter performed very well in tests comparing it to a reference meter. It receives high praise for its usability, display quality, measurement accuracy, included accessories, and robust design.
1. COMPANY REPORT LNB Manufacturer MTI
Quoi de neuf de la rue des innovations ?
Le Hsinchu Science Park à Taiwan mérite bien l'adjectif "parc": dissimulé derrière des arbres, on distingue les bureaux et installations de production de MTI.
MTI, ce fabricant de LNB taiwanais, n'aurait pas pu tomber mieux en ce qui concerne le nom de ginal d'un appareil de téléphone par satellite
sa rue. MTI a été fondé en 1983 et a déménagé en 1990 sur Innovation Road située dans le parc dans la salle d'exposition de l'entreprise, que
des sciences Hsinchu. Ce parc technologique, dont on affirme qu'il est très similaire au Silicon Peter Arnett a utilisé pour faire ses reporta-
Valley en Californie, est occupé exclusivement par des entreprises de haute technologie. Hsinchu ges pour la CNN durant la première Guerre du
a une situation stratégique dans le Sud-ouest de Taipei, à environ 1,5 heure de train de la capitale Golfe. Sa photo tenant dans la main ce télé-
et à moins d'une heure de l'aéroport international Taoyuan. phone par satellite a fait à l'époque le tour du
monde. Sophie se rappelle : « Après la publi-
Au siège social de l'entreprise à Hsinchu, de la fabrication se fait ici. Dès le début, les LNB cation de cette photo, la valeur des actions de
travaillent plus de 700 employés. 800 autres ont constitué leur production principale ; mais MTI est rapidement montée".
personnes sont occupées à WuXi, en Chine depuis, des groupes de produits comme p. ex Eugène Wu, P.D.G. du groupe MTI LNB Busi-
continentale où MTI possède la société Jupiter le VSAT ont enrichi la gamme. Sophie Su, Chef ness explique la situation actuelle : “Presque
Technology, fondée en 2001. La majeure partie produit chez MTI, est très fière d'exhiber l'ori- les 40 % de nos ventes sont réalisés par la
Chih-Ling Chang est leur directeur des ventes pour l'Eu- Tindy Liu qui a grandi en Floride, maîtrise parfaitement Jeff Lin - пом. управител по продажби и
rope et collabore étroitement avec le directeur des ventes "l'américain" et est la responsable marketing chez MTI. отговарящ за продажбите на азиатския
européen basé à Londres ainsi que le guru technique, le Elle est fan du personnage comique japonais "Dorae- пазар, стои на покрива на сградата
"docteur" Dave Iredale. mon" на MTI.
TELE-satellite & Broadband — 06-07/2007 — www.TELE-satellite.com
2. sur des améliorations.
Eugène nous donne un
scoop : "MTI colla-
bore avec certains
grands fournisseurs
de systèmes et opé-
rateurs VSAT en
leur fournissant les
émet teur s-récep-
teurs en Bande Ka, des
convertisseurs combinés
en bande Ku et des TRIA pour d e s
services haut débit par satellite en Amérique
du Nord et en Asie du Sud-est. MTI a pro-
duit durant les deux dernières années plus
de 280'000 émetteurs-récepteurs pour la
bande Ka et est très fière de détenir les
90% des parts du marché".
Mais revenons à la bande Ku. Jeff
Lin, assistant au directeur des ventes
et responsable pour le marché
asiatique nous parle au sujet
des ventes: "Les LNB simples ne
Allen Yen a été le COO chez MTI depuis 2005 sont plus très demandés. Depuis
2005, les ventes des LNB Twin et
division LNB de MTI”. On pouvait cependant Quad ont augmenté régulièrement
s'attendre à des ventes plus importantes pour de 5 à 10 % chaque année.
la division VSAT. Eugène tente de mettre les L'Inde est devenue depuis récem-
choses dans la perspective correcte : “Nous ment un nouveau marché pour MTI.
vendons un nombre impressionnant de LNB". Rien que durant le dernier trimestre
Ceci permet de réaliser des marges de profit 2006, MTI a expédié plus de 100'000
plus importantes tout en baissant le prix des LNB vers ce pays. Sophie Su, directrice
LNB. produit en chef, est convaincue que ce chiffre
En outre, les LNB font partie des produits de augmentera dès que les grands télédiffuseurs
qualité de MTI. Eugène nous dévoile un aperçu de l'Inde obtiendront des licences d'émission.
Octo LNB
de la stratégie de son entreprise : ‘Notre plus
grand marché sont les États-Unis où nous Peut-on trouver MTI dans les
sommes le fournisseur principal pour Echostar. grandes expositions su satellite?
Nous voulons aussi devenir des partenaires pri- Tindy Liu, spécialiste pour la pla-
vilégiés pour d'autres opérateurs TV’. nification marketing, nous informe
40 % des LNB produits vont vers les E.U. et que MTI sera présent à ANGA.
les autres 60 % sont distribués en Europe et "Nous n'avons pas encore décidé
dans le Proche-Orient. En Europe, MTI ne se si nous irons aussi à l'IBC, la
défend pas trop mal auprès des grands télé- CABSAT et la SBCA". Les employés
diffuseurs. À travers de partenaires locaux de l'équipe des ventes cependant,
comme E-tronix au Luxembourg, MTI fournit du ont régulièrement visité toutes
matériel par exemple à Canal Plus en France, les foires commerciales d'impor-
Sky Italia en Italie, ou BSkyB en Angleterre. tance.
Comment explique-t-on cette très bonne
position sur le marché chez MTI ? ‘Qualité et MTI se distingue en tant qu'une
fiabilité", commente Eugène, ‘L'avantage est entreprise qui correspond sans
aussi par le fait que MTI a existé dès les débuts. aucun doute au nom de rue de son
Nos clients nous font confiance’. siège central : Des innovations
Non seulement cela, mais il y a aussi les depuis plus de 24 ans placent MTI
50 ingénieurs qui travaillent en permanence en tête de sa catégorie.
Eugène Wu, directeur commercial du LNB Group, présentant un des Pan Yuonan est l'un des ingénieurs développement. Ici, il est en train de tester
nouveaux Octo LNB dans l'exposition chez MTI. dans une chambre exempte d'écho, un triple LNB monobloc nouvellement
conçu pour sa résistance en modulation croisée. L'intérieur ce cette chambre
d'essais est visible à travers la porte entrouverte dans la photo du haut.
www.TELE-satellite.com — 06-07/2007 — TELE-satellite & Broadband