Rohde & Schwarz

Supercapacitor or Ultracapacitor

Find out about the supercapacitor also known as the supercap or ultracapacitor: what they are, how they work, applications and all the essential details.


Capturing the WebRTC Opportunity

Ray Adensamer, Senior Product Marketing Manager at Radisys, explains how operators can successfully seize the opportunities that WebRTC offers.


Yagi antenna

Overview, summary, tutorial about the Yagi antenna sometimes called the Yagi-Uda RF antenna that is widely used where gain and directivity are required from an RF antenna design.


Satellite Orbit Types & Definitions

Notes and details about satellite orbits: the basics; different types of satellite orbit; & satellite orbit definitions.

Facts of the day

1 October 2014

History - It was on this day in 1958 that NASA (National Aeronautics and Space Administration) was created in the USA. It replaced NACA (National Advisory Committee for Aeronautics) which was created in 1915.

Quote - The intention of the Holy Ghost is to teach us how one goes to heaven, not how heaven goes. Galileo Galilei

Fact - There are more than a billion mobile phone subscribers around the world. This took around 25 years after the launch of the first commercial systems. It took over 100 years for land lines to reach this figure.


Op Amp Gain Calculations & Tutorial

Essential circuit details, equations and calculations for operational amplifier gain for generic, open and closed loop circuit configurations.

cJTAG IEEE 1149.7 Standard

A summary, overview or tutorial of the basics of Compact JTAG or cJTAG defined under IEEE 1149.7 standard for boundary scan testing. news from

Radio Receiver Technology: Principles, Architectures and Applications
Radio Receiver Technology: Principles, Architectures and Applications

Ralf Rudersdorfer
As the name implies, this book provides a complete description of current radio...
Read more . .

USA bookstore UK bookstore
High Voltage DC Distribution
High-voltage DC distribution is key to increased system efficiency and renewable-energy opportunities. More... is operated and owned by Adrio Communications Ltd and edited by Ian Poole. All information is © Adrio Communications Ltd and may not be copied except for individual personal use. This includes copying material in whatever form into website pages. While every effort is made to ensure the accuracy of the information on, no liability is accepted for any consequences of using it. This site uses cookies. By using this site, these terms including the use of cookies are accepted. More explanation can be found in our Privacy Policy