Rohde & Schwarz

Parabolic Reflector or Dish Antenna

Overview or tutorial about the essentials of the parabolic reflector or dish antenna and its theory and design for high performance applications such as satellite transmission and reception as well as microwave links.


Capacitor Types - An Overview

Essentials about the different types of capacitor that are available: performance, construction, specifications, parameters, advantages, disadvantages of the differnet capacitor types and where they are best used.

Facts of the day

17 April 2014

History - It was on this day in 1790 that Benjamin Franklin, the politician and scientist died. In 1906 San Francisco was hit by a huge earthquake, and in 1970, the ill fated Apollo 13 spacecraft returned to Earth safely having suffered a catastrophic failure some days earlier on its journey to the moon.

Quote - How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love? - Albert Einstein

The way things are - The first myth of management is that it exists.


Spectrum Analyser Basics Tutorial

Essentials of the RF spectrum analyzer, what they are, the various forms of spectrum analyser, and what they are used for.


Wi-Fi 802.11 Channels & Frequencies

List of Wi-Fi / WLAN / 802.11 bands, their channel frequencies and bandwidth, 2.4 & 5 GHz allocations worldwide, & summary of which WiFi channels can be used together. news from

Dilbert from

Sensors, Actuators, and Their Interfaces: A Multidisciplinary Introduction
Sensors, Actuators, and Their Interfaces: A Multidisciplinary Introduction

Nathan Ida
Sensors and actuators are becoming increasingly important. While they had...
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