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What Is Bandwidth?

What Is Bandwidth?

This article explores the surprisingly complicated details associated with a word that we frequently use but perhaps don’t fully understand.


How to Process I/Q Signals in a Software-Defined RF Receiver

How to Process I/Q Signals in a Software-Defined RF Receiver

This article discusses the mathematical significance of I/Q signals and presents the final steps in the DSP algorithm for decoding frequency-shift-keying baseband signals.


How to Use I/Q Signals to Design a Robust FSK Decoder

How to Use I/Q Signals to Design a Robust FSK Decoder

An improved algorithm, in conjunction with quadrature modulation, can achieve FSK decoding that is not affected by phase misalignment.


Digital Signal Processing in Scilab: Understanding Phase Misalignment in FSK Decoding

Digital Signal Processing in Scilab: Understanding Phase Misalignment in FSK Decoding

In this article we’ll use Scilab to explore the effect of unpredictable phase variations in a demodulated frequency-shift-keying baseband signal.


Digital Signal Processing in Scilab: How to Decode an FSK Signal

Digital Signal Processing in Scilab: How to Decode an FSK Signal

Learn about a DSP technique that extracts the original digital data from a demodulated frequency-shift-keying baseband signal.


How to Perform Frequency Modulation with a Digitized Audio Signal

How to Perform Frequency Modulation with a Digitized Audio Signal

In this article, we’ll use Scilab to create an FM waveform that carries information corresponding to an audio recording.


How to Use Scilab to Analyze Frequency-Modulated RF Signals

How to Use Scilab to Analyze Frequency-Modulated RF Signals

Computing a discrete Fourier transform can help you to analyze the ways in which RF modulation affects the spectrum of a carrier signal.


How to Use Scilab to Analyze Amplitude-Modulated RF Signals

How to Use Scilab to Analyze Amplitude-Modulated RF Signals

Scilab’s FFT functionality can help you understand the frequency-domain effects of RF modulation techniques.


How to Perform Frequency-Domain Analysis with Scilab

How to Perform Frequency-Domain Analysis with Scilab

In this article we’ll work with sinusoidal signals in the frequency domain using Scilab’s fast Fourier transform (FFT) functionality.


Learn RF Design: Choosing the Right RF Transceiver IC

Learn RF Design: Choosing the Right RF Transceiver IC

Learn about integrated circuits that can help you to design customized RF communication systems.


Wireless RF Energy Harvesting: RF-to-DC Conversion and a Look at Powercast Hardware

Wireless RF Energy Harvesting: RF-to-DC Conversion and a Look at Powercast Hardware

This article looks at the technology and the sample kits that Powercast provides users who want to learn more about the technology.


Introduction to the Two-Cavity Klystron Amplifier

Introduction to the Two-Cavity Klystron Amplifier

Klystron amplifiers are used in a variety of industries, including satellite systems, television broadcasting, radar, particle accelerators, and in the medical field. In this article, we'll learn about the two-cavity klystron's unique build and the concept of electron bunching.


How Do Satellites Communicate with a GPS System? A Look at the GPS Antenna

How Do Satellites Communicate with a GPS System? A Look at the GPS Antenna

Antennas provide the wireless linkage required for any satellite-based system. Here's a look at the many antennas of GPS.


Beyond the Optocoupler: Understanding Digital Isolators

Beyond the Optocoupler: Understanding Digital Isolators

Optocouplers are undoubtedly effective, but alternative isolation technologies may be a better choice for your application.


Understanding the Dynamic Range Specification of an ADC

Understanding the Dynamic Range Specification of an ADC

This article will discuss the dynamic range specification of an ADC.


Basics of Digital Down-Conversion in DSP

Basics of Digital Down-Conversion in DSP

This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital radio receivers.


Hardware Evaluation of a Custom Programmable Wi-Fi Controller: The WiCard

Hardware Evaluation of a Custom Programmable Wi-Fi Controller: The WiCard

This article explores the schematic design and basic features of a smart programmable wireless controller module I designed: the WiCard.


What Is the Difference between Conducted and Radiated EMI?

What Is the Difference between Conducted and Radiated EMI?

This technical brief explains two distinct types of electromagnetic interference.


How to Stream Sensor Data from Bosch’s XDK110 Evaluation Board to the MQTT Messaging Service

How to Stream Sensor Data from Bosch’s XDK110 Evaluation Board to the MQTT Messaging Service

In this article, we will take a look at the XDK110 rapid prototyping kit, characterize its hardware, explore its software environment, and demonstrate connecting the device to the MQTT messaging service.


Projects Apr 12, 2018 by Mark Hughes
How to Add Bluetooth 5 to a Project with a GT-tronics BLE5 Module

How to Add Bluetooth 5 to a Project with a GT-tronics BLE5 Module

This article demonstrates a solderless-breadboard compatible carrier-board for a pre-certified BLE4 or BLE5 module made by GT-Tronics. Use it to experiment with your own BLE5 compatible designs.


Projects Apr 04, 2018 by Mark Hughes