Latest Software-Defined Radio Education

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Radio Circuits

Textbook

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

Passive Filter Circuits

Worksheets - Software-Defined Radio

In very simple, qualitative terms, rate the impedance of capacitors…

Signal Modulation

Worksheets - Software-Defined Radio

A modern method of electrical power control involves inserting a…

Phase-Locked Loops

Worksheets - Software-Defined Radio

This is a schematic for a simple VCO: The oscillator is of the RC…

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Other Diode Technologies

Textbook

Varicap or varactor diodes A variable capacitance diode is known as a…

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

Mixed-Frequency Signals

Worksheets - Software-Defined Radio

What is a harmonic frequency? If an oscillator circuit outputs a…

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

Design Project: Radio Transmitter

Worksheets - Software-Defined Radio

Research the FCC (Federal Communication Commission) guidelines on…

Fundamentals of Radio Communication

Worksheets - Software-Defined Radio

What does the acronym RF stand form, in reference to radio-related…

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Other Waveshapes

Textbook

As strange as it may seem, any repeating, non-sinusoidal waveform is…

Digital Communication

Worksheets - Software-Defined Radio

Don’t just sit there! Build something!! Learning to analyze digital…

LC Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

Simple Parallel (Tank Circuit) Resonance

Textbook

Resonance in a Tank Circuit A condition of resonance will be…

Polar Form and Rectangular Form Notation for Complex Numbers

Textbook

In order to work with complex numbers without drawing vectors, we…

Harmonics in Polyphase Power Systems

Textbook

In the chapter on mixed-frequency signals, we explored the concept of…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Design Project: Pulse-Width Modulation (PWM) Signal Generator

Worksheets - Software-Defined Radio

What shape of voltage waveform would you expect to measure (using an…

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Microstrip Wavelength Calculator

Tools

A tool designed to calculate the guided wavelength inside a microstrip.

Waveguide Calculator (Circular)

Tools

This tool calculates the cutoff frequency of a circular waveguide

Electrical Noise and Interference

Worksheets - Software-Defined Radio

Define what noise means, in the electrical sense of the word. How does…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Noise Figure and Noise Temperature Calculator

Tools

This calculator computes the noise figure and noise temperature in a system

Q Factor and Bandwidth of a Resonant Circuit

Textbook

The Q, or quality, factor of a resonant circuit is a measure of the…

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

VSWR / Return Loss Calculator

Tools

A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission line

Single-phase Power Systems

Textbook

Single phase power system schematic diagram shows little about the…

Questions relating to project management

Worksheets - Software-Defined Radio

NAME:…

What Are Zener Diodes?

Textbook

What Is a Zener Diode? A Zener diode is a special type of rectifying…

Time Constant Calculations

Worksheets - Software-Defined Radio

Don’t just sit there! Build something!! Learning to mathematically…

Performance-Based Assessments for Analog Integrated Circuit Competencies

Worksheets - Software-Defined Radio

Analog and Digital Signals

Textbook

Instrumentation is a field of study and work centering on measurement…

Unit Conversion Calculator

Tools

Convert to and from different units of length, weight, power, temperature and torque

AC Lab - LC Tank Circuit

Textbook

In this hands-on AC electronics experiment, build a parallel resonant inductor-capacitor circuit and learn about oscillation, resonant frequency, and damping.

Frequency and Phase Measurement

Textbook

An important electrical quantity with no equivalent in DC circuits is…

Parallel R, L, and C

Textbook

We can take the same components from the series circuit and rearrange…

Thyristors

Textbook

Thyristors are a broad classification of bipolar-conducting…

Important Constants

Textbook

Euler’s Number Euler’s constant is an important value for…

Multi-Stage Transistor Amplifiers

Worksheets - Software-Defined Radio

Don’t just sit there! Build something!! Learning to mathematically…

Bandpass Filter Calculator

Tools

This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter.

The Common-source Amplifier (IGFET)

Textbook

Feedback

Textbook

If some percentage of an amplifier’s output signal is connected…

Junction Field-effect Transistors

Textbook

The field effect transistor was proposed by Julius Lilienfeld in US…

Don’t Care Cells in the Karnaugh Map

Textbook

Up to this point we have considered logic reduction problems where…

IC Fabrication and Packaging

Worksheets - Software-Defined Radio

What does it mean if an integrated circuit comes in DIP form? What…

Complex Circuits

Textbook

What do we do if we come across a circuit more complex than the simple…