Rohde & Schwarz

Laser Diode Technology

All the key details about laser diode technology detailing the operation, chip structure, materials and operation of laser diodes.


QAM Theory and Related Equations

Find out about the theory and mathematics behind QAM quadrature amplitude modulation - an approachable summary.


Log periodic antenna

Overview, summary, tutorial about the log periodic antenna or aerial used for wideband RF antenna applications.


RF Frequency Counter Tutorial

All the essential details about the RF frequency counter, how a frequency counter works, and how to use one.

Transistor Crystal Oscillator Circuit

Circuit design and data for a transistor crystal oscillator circuit which can be used as a stable reference signal.

Facts of the day

24 May 2015

History - It was on 24 May1844, the first message was sent in Morse code on the experimental line set up between Baltimore and Washington DC, USA. It read What hath God wrought.

Quote - Without data you're just another person with an opinion. W. Edwards Deming

Fact - One ounce of gold can be drawn into eight kilometres of wire.


RS-485 Transceivers Design Tutorial

Jeff Lies, Applications Engineer, Precision Products, Intersil Corporation looks how to design circuits for the RS485 & RS422 serial data communications standards. news from

Using Digital Control Designs for Stable Power Supplies
Find out how to achieve stable power supply designs with fast transient response by using digital control techniques in this whitepaper from Intersil.

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Diploma in Telecoms Business
Check out this popular distance learning course providing all the key essentials about the telecommunications business arena.

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The Art of Electronics 3rd Edition
The Art of Electronics 3rd Edition

Paul Horowitz and Winfield Hill
The Art of Electronics was the best book for electronic circuit designers and...
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