Latest Telecom Technical Articles

This technical brief explains what a CRC is and how you can use it to make your digital communication more robust.

This technical brief explains what a CRC is and how you can use it to make your digital communication more robust.

This article introduces the RS-422 and RS-485 interfaces and explains why you might want to use them in your designs.

This article introduces the RS-422 and RS-485 interfaces and explains why you might want to use them in your designs.

Learn about the important characteristics, benefits, and applications of differential signaling, as well as the proper…

Learn about the important characteristics, benefits, and applications of differential signaling, as well as the proper layout techniques for differential signals.

Maxwell's equations, which summarize the interaction of electromagnetic fields, have always been described using the…

Maxwell's equations, which summarize the interaction of electromagnetic fields, have always been described using the "math of the times." Using tensors, they can be given in two equations!

Linear phase response, also known as constant group delay, is an important property in some filter applications.

Linear phase response, also known as constant group delay, is an important property in some filter applications.

This technical brief explains the importance of complex-conjugate poles and second-order stages in optimizing filter performance.

This technical brief explains the importance of complex-conjugate poles and second-order stages in optimizing filter performance.

Antennas are used to transmit and receive electromagnetic energy. This article covers basic antenna theory.

Antennas are used to transmit and receive electromagnetic energy. This article covers basic antenna theory.

This technical brief explains what differential QPSK is and why it can be advantageous compared to ordinary QPSK.

This technical brief explains what differential QPSK is and why it can be advantageous compared to ordinary QPSK.

This technical brief covers the basic characteristics of a digital modulation scheme known as quadrature phase shift keying.

This technical brief covers the basic characteristics of a digital modulation scheme known as quadrature phase shift keying.

Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements,…

Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements, measurement tools, and expected results. There are many ways to classify signals!

Mentioned in the previous article, an operational amplifier is usually connected to components in a feedback circuit. In…

Mentioned in the previous article, an operational amplifier is usually connected to components in a feedback circuit. In this article, we will discuss one of two amp configurations that are most widely used.

In this article, we'll delve into amplitude modulation and what it's used for. Also, we will differentiate between…

In this article, we'll delve into amplitude modulation and what it's used for. Also, we will differentiate between communication methods that do and do not use modulation.

In this article I'll show you one way of sending an SMS using a PIC 16F628A and a SIMCOM SIM900A module.

In this article I'll show you one way of sending an SMS using a PIC 16F628A and a SIMCOM SIM900A module.

SIMCOM's SIM 900A in Europe? Read on to learn how.

SIMCOM's SIM 900A in Europe? Read on to learn how.

This project explains how to isolate signals to eliminate ground loops in electronic systems.

This project explains how to isolate signals to eliminate ground loops in electronic systems.

A introduction to adaptive echo cancellers using Matlab simulation.

A introduction to adaptive echo cancellers using Matlab simulation.

Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher."…

Amateur radio operators ("hams") have long said, "If you want a bigger signal, put up more metal and put it up higher." Antennas for Wi-Fi are no exception.

Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a…

Having introduced the general negative feedback structure, we will now demonstrate that negative feedback has a beneficial effect on two important characteristics of amplifier circuits.

Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.

Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.