3.2.- THÉORIE - PRATIQUES FONDAMENTALES

In remote communications or Telecommunications, one of the main objectives is to transmit as much information as possible over long distances without interference or noise and using minimum resources.

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The Modulation Techniques allow the transmission of information simultaneously through the same communication channel and, therefore, a greater use of the media. Nowadays, the numerous modulation techniques available are grouped into two types: analog modulation and digital modulation. Within the analog modulations, depending on the parameter that contains the information to be transmitted, there is amplitude modulation (AM), frequency modulation (FM) and phase modulation (PM). Likewise, within the digital modulations, there is amplitude-shift keying (ASK), frequency-shift keying (FSK), phase-shift keying (PSK, DPSK, QPSK), and quadrature amplitude modulation (QAM).

The Antenna Theory is based on the study of the main characteristics of this type of devices, such as wavelength, gain, directivity, power, radiation pattern, standing wave ratio (SWR), etc. with the aim of transmitting and/or receiving signals that contain the information as efficiently as possible, that is, reaching the greatest possible distance with the minimum use of energy. Nowadays, there is a great diversity of antennas, each one for a different application. For example, monopole antennas, dipole antennas or loop antennas (square, circular, helical, etc.) are the most common ones in radio communications. The Yagi-Uda antennas are the most used ones in the reception of television signals. For communications by satellites or radars at frequencies in the microwave range, the most common one is the horn antenna with parabolic reflector excited by waveguides.

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PRODUITS DE THÉORIE - PRATIQUES FONDAMENTALES
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ANALOG MODULATIONS TRAINER - EMDA/A
  • EMDA/A
Available
3.2.1.- THÉORIE DE CODAGE, DE MODULATION ET DU TRAITEMENT DE SIGNAL
EMDA/A

Entraîneur de Modulations Analogiques

The Analog Modulations Trainer, ,EMDA/A,, is a complete analog communications trainer designed to explain the basic concepts of analog modulation. It covers the principles of many of the modulation and demodulation techniques used in modern analog...
DIGITAL MODULATIONS TRAINER - EMDA/D
  • EMDA/D
Available
3.2.1.- THÉORIE DE CODAGE, DE MODULATION ET DU TRAITEMENT DE SIGNAL
EMDA/D

Entraîneur de Modulations Numériques

The Digital Modulations Trainer, ,EMDA/D,, is a complete digital communications trainer designed to explain the basic concepts of digital modulation. It covers the principles of many of the modulation and demodulation techniques used in modern...
PULSE MODULATIONS TRAINER - EMDA/P
  • EMDA/P
Available
3.2.1.- THÉORIE DE CODAGE, DE MODULATION ET DU TRAITEMENT DE SIGNAL
EMDA/P

Entraîneur de Modulations d'Impulsion

The Pulse Modulations Trainer, "EMDA/P" is a complete modulations trainer designed to explain the basic concepts of pulse modulation. It covers the principles of many of the modulation and demodulation techniques used in modern communication...
TRANSMISSION LINES UNIT - ELT
  • ELT
Available
3.2.1.- THÉORIE DE CODAGE, DE MODULATION ET DU TRAITEMENT DE SIGNAL
ELT

Entraîneur de Lignes de Transmission

The Communication industry requires an ever-high data rates in the communication systems, the greater data rates needs that the components of a communication system are designed to ensure the signal integrity.The transmission lines have critical...
COMPUTER CONTROLLED ANTENNA UNIT - EANC
  • EANC
Available
3.2.2.- THÉORIE DES ANTENNES ET DES MICRO-ONDES
EANC

Entraîneur d´Antennes, Contrôlé par Ordinateur (PC)

Équipementd´Antennes, Contrôlé par Ordinateur (PC), "EANC", est un système avancé qui fonctionne avec un ordinateur (PC), qui permetl'acquisition de données et le contrôle de la caractérisation de l'antenne à l'aide du système SCADA (Boîtier...
ANTENNA UNIT - EAN
  • EAN
Available
3.2.2.- THÉORIE DES ANTENNES ET DES MICRO-ONDES
EAN

Entraîneur d´Antennes

The Antenna Unit “EAN” is a complete and affordable unit and no extra hardware is required for complete all the practice set.The “EAN” allows students to learn how to perform the essential antenna measurements: radiation pattern with the measure...
COMPUTER CONTROLLED MICROWAVE UNIT - EMIC
  • EMIC
Available
3.2.2.- THÉORIE DES ANTENNES ET DES MICRO-ONDES
EMIC

Entraîneur de Microondes Informatisé

The Computer Controlled Microwave Unit, "EMIC", integrates a microwaves measuring test bench formed by microwaves generator, a kitof different standardized (WR-90) waveguides devices (horns antennas, attenuators, etc), measure devices (Power...
MICROWAVE UNIT - EMI
  • EMI
Available
3.2.2.- THÉORIE DES ANTENNES ET DES MICRO-ONDES
EMI

Entraîneur de Microondes

The Microwave Unit “EMI” integrates a microwaves measuring test bench formed by microwaves generator, a kit of different standardized(WR-90) waveguides devices (horns antennas, attenuators, etc) and measure devices for complete the set of...