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Please browse and make use of these materials. Each title is one training unit—the total sum of materials for one single class, session or lecture. One unit may be one video of a two-hour lecture. Another may be several files including class handouts, presentation slides, trainer’s notes, and homework.

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Titlesort icon Summary Author Time Language Updated
Unidad 12: Seguridad en Redes Inalámbricas

Las redes inalámbricas presentan algunos retos adicionales con relación a la seguridad si la comparamos con las redes cableadas. Sin embargo, utilizando cifrado (encriptación) de extremo a extremo se puede ofrecer a los usuarios protección adecuada para sus datos y transacciones.

Equipo TRICALCAR 1 hour Spanish 29 Aug 08
Unidad 11: Resolución de Problemas

Un enfoque metódico para identificar las fallas en una red inalámbrica.

Equipo TRICALCAR 1 hour Spanish 29 Aug 08
Unidad 10: Instalaciones para Exteriores

Se presenta información sobre las estructuras necesarias para fijar antenas y dispositivos expuestos a la intemperie. Conceptos de protección contra rayos y puesta a tierra. Ejemplos de instalaciones en varios países.

Equipo TRICALCAR 1 hour Spanish 31 Aug 08
Unidad 17: Enlaces de Larga Distancia

Aunque las redes WiFi nacieron como redes de área local, se pueden modificar para ofrecer servicios a larga distancai y a muy bajo costo, utilizando antenas externas y una ingeniería apropiada. Los experimentos demuestran la factibilidad de transmitir a más de 300 km de distancia y a altas tasas de transmisión.

Equipo TRICALCAR 1 hour Spanish 7 Oct 08
Tecnologia apropiada para redes comunitarias

Conferencia inaugural de WALC2008, Escuela Latinoamericana de Redes, Universidad de los Andes, Merida, Venezuela 10 de noviembre 2008.

Vision de los factores que favorecen las soluciones inalambricas como la tecnologia mas conveniente para el despliegue de redes comunitarias.

Ermanno Pietrosemoli 1 hour Spanish 20 Nov 08
Sustainability Strategies

Define basic concepts of sustainability. Provide a guide to identify factors that may be critical for the sustainability of community wireless  networks. Analise examples of projects that have used Wi-Fi technology in their networks.

TRICALCAR Team 1 hour English 30 Aug 08
Spread Spectrum radio technologies

This lecture is a theoretical introduction to the "spread spectrum" technology, with simple examples to understand how it works. It discusses the difference between SS and narrow-band radio, and between direct sequence and frequency hopping SS. There are also two short appendixes on Antenna Basics and Power Budget Calculation.

Fulvio Postogna, Carlo Fonda 1 hour English 15 Oct 08
Spectrum Management & Regulatory Issues

A review of regulations that specify how radio systems of any kind should (or should not) be used in all countries.

Ryszard Struzak English 14 Aug 08
Solar PV Energy for Telecommunications

Solar Photovoltaic is a good solution for powering telecommunication devices in places not served by the electricity grid. Because of the cost of the solar panels and batteries required, it is very important to understand the technology and be able to estimate with good precision the number of devices required to meet the requirements of a given installation.

TRICALCAR Team 2 hours English 7 Oct 08
Site Surveying and Antenna Mounting

Overview of site survey and outdoor mounting considerations, including:

  • Site survey
  • Antenna mounting requirements
  • Wall side mounts
  • Roof mounts
  • Guyed towers
  • Self supporting tower
  • Typical installation
Ermanno Pietrosemoli English 14 Aug 08