Categories

Fundamentals of Radio Communication

Worksheets - Software-Defined Radio

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

Maximum Power Transfer Theorem

Textbook

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

Design Project: Radio Transmitter

Worksheets - Software-Defined Radio

Research the FCC (Federal Communication Commission) guidelines on…

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…

Signal Modulation

Worksheets - Software-Defined Radio

A modern method of electrical power control involves inserting a…

Radio Circuits

Textbook

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

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Passive Filter Circuits

Worksheets - Software-Defined Radio

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

Principles of Radio

Textbook

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

Other Diode Technologies

Textbook

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

Phase-Locked Loops

Worksheets - Software-Defined Radio

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

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Antenna Downtilt and Coverage Calculator

Tools

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

Harmonic Phase Sequences

Textbook

In the last section, we saw how the 3rd harmonic and all of its…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Principles of Radio

Textbook

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

Pi Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

Capacitance, Reactance, and Admittance Calculator

Tools

A calculator for solving the capacitance, reactance, and admittance of a capacitor.

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

Waveguides

Textbook

A waveguide is a special form of transmission line consisting of a…

Introduction to Digital Communication

Textbook

In the design of large and complex digital systems, it is often…

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

VSWR / Return Loss Calculator

Tools

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

Basic Electromagnetism and Electromagnetic Induction

Worksheets - Software-Defined Radio

When lightning strikes, nearby magnetic compass needles may be seen to…

Magnetic Fields and Inductance

Textbook

Whenever electrons flow through a conductor, a magnetic field will…

Phase-Locked Loops

Worksheets - Software-Defined Radio

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

Wavelength (TEM) Calculator

Tools

This calculator determines the wavelength of a signal given the frequency and dielectric constant.

Bridged-Tee Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a bridged-tee attenuator.

ElectroStatic Discharge

Textbook

At the start of this book, we discussed static electricity and how it…

T-Pad Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.

Stepper Motors

Worksheets - Software-Defined Radio

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

Integrated Circuits

Textbook

  A Logic Gate is assigned as an elementary building block of…

Power Dissipation

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Analysis Techniques for Series Parallel Resistor Circuits

Textbook

Guidelines to Series-Parallel Combination Circuit Analysis The goal of…

Ohm’s Law

Worksheets - Software-Defined Radio

For a given amount of water pressure, which will flow a greater rate…

The Common-drain Amplifier (IGFET)

Textbook

Phase-locked Loops

Textbook

Circuit Effects

Textbook

The principle of non-sinusoidal, repeating waveforms being equivalent…

Delta and Wye 3-Phase Circuits

Worksheets - Software-Defined Radio

Label where each of the following electrical quantities would be found…

IGBTs

Textbook

Because of their insulated gates, IGFETs of all types have extremely…

Negative Feedback

Textbook

If we connect the output of an op-amp to its inverting input and apply…

Differentiator and Integrator Circuits

Textbook

By introducing electrical reactance into the feedback loops of an…

Step-up and Step-down Transformers

Textbook

So far, we’ve observed simulations of transformers where the…

Potato Battery

Textbook

PARTS AND MATERIALS One large potato One lemon (optional) Strip of…

Karnaugh Maps, Truth Tables, and Boolean Expressions

Textbook

Who Developed the Karnaugh Map? Maurice Karnaugh, a…

Metric Prefixes and Unit Conversions

Textbook

Metric Prefixes   Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z…

Asymmetric Stripline Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of an asymmetric stripline

Simple Series Resonance

Textbook

A similar effect happens in series inductive/capacitive circuits. When…

Bandpass Filter Calculator

Tools

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

Capacitance

Worksheets - Software-Defined Radio

Write an equation describing the precise mathematical relationship…