Latest Modulation Education

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A 50-Ohm Cable?

Textbook

Early in my explorations of electricity, I came across a length of…

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.

Snell’s Law Calculator

Tools

Given three of the four input parameters (refractive indices, angles of incidence, and refraction) this tool calculates the missing variable based on Snell's law.

A 50-Ohm Cable?

Textbook

Early in my explorations of electricity, I came across a length of…

EIRP Calculator

Tools

A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

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.

Digital Communication

Worksheets - Modulation

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

Radar Maximum Range Calculator

Tools

This tool is designed to calculate the maximum distance (range) that a radar can detect

Friis Transmission Calculator

Tools

This calculator computes the power received by an antenna using Friis formula

Balanced Attenuator Calculator

Tools

This balanced attenuator calculator helps you determine the resistor (R1) values for a balanced attenuator.

Passive Filter Circuits

Worksheets - Modulation

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

Design Project: Telegraph System

Worksheets - Modulation

What voltage will you choose to use for each of the station batteries?

Link Budget Calculator

Tools

A Link Budget puts into account all gains and losses a signal goes through in a system as it is transmitted. The calculator calculates the power of the received signal given amplifier and antenna gains, and medium loss.

Temperature Coefficients of Resistance Table

Textbook

Temperature coefficient (α) per degree C: Material Element/Alloy…

Millman’s Theorem Revisited

Textbook

You may have wondered where we got that strange equation for the…

Current Divider Circuits

Worksheets - Modulation

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

Step-up and Step-down Transformers

Textbook

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

DIY EE Lab - Introduction to Electronics Projects

Textbook

To learn about electronics, you must eventually engage in hands-on experimentation. Knowledge gleaned from books alone has limited use in scientific endeavors. Troubleshooting a circuit can be as important as the knowledge gained from a properly functioning experiment.

Power Supply Circuits

Textbook

There are three major kinds of power supplies: unregulated (also…

Symmetric Stripline Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a symmetric stripline.

Likely Failures in Proven Systems

Textbook

The following problems are arranged in order from most likely to least…

T-Match Impedance Matching Circuits

Tools

A tool designed to compute the values to be used in a T-match Impedance Circuit

Definite Integrals and the Fundamental Theorem of Calculus

Textbook

        RELATED WORKSHEET: Calculus for Electric…

Binary Subtraction

Textbook

We can subtract one binary number from another by using the standard…

Magnetic Fields and Inductance

Textbook

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

Encoders and Decoders

Worksheets - Modulation

What does it mean, in general terms, to encode something? Conversely,…

Clamper Circuits

Textbook

The circuits in the figure below are known as clampers or DC…

Numbers versus Numeration

Textbook

It is imperative to understand that the type of numeration system used…

Diode Switching Circuits

Textbook

Diodes can perform switching and digital logic operations. Forward and…

Optoelectronic Devices

Worksheets - Modulation

In this circuit, the electric motor is supposed to turn on whenever…

Karnaugh Mapping

Worksheets - Modulation

Identify each of these logic gates by name, and complete their…

Complex Number Arithmetic

Textbook

Since complex numbers are legitimate mathematical entities, just like…

AC Motor Theory

Worksheets - Modulation

Electromechanical watt-hour meters use an aluminum disk that is spun…