Latest Modulation Education

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A 50-Ohm Cable?

Textbook

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

Design Project: Telegraph System

Worksheets - Modulation

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

EIRP Calculator

Tools

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

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.

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

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…

Friis Transmission Calculator

Tools

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

Radar Maximum Range Calculator

Tools

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

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.

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.

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…

Digital Communication

Worksheets - Modulation

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

Introduction to Digital Communication

Textbook

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

The Quadratic Formula

Textbook

Solving for x in a given polynomial equation “ax2 + bx + c…

Universal Shift Registers: Parallel-in, Parallel-out

Textbook

The purpose of the parallel-in/ parallel-out shift register is to take…

Shift Registers: Serial-in, Parallel-out (SIPO) Conversion

Textbook

A serial-in, parallel-out shift register is similar to the serial-in,…

Basic Algebra and Graphing for Electric Circuits

Worksheets - Modulation

Many different equations used in the analysis of electric circuits may…

Demultiplexers

Textbook

A demultiplexer, sometimes abbreviated dmux, is a circuit that has one…

Kirchhoff’s Current Law (KCL)

Textbook

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…

Computer Simulation of Electric Circuits

Textbook

Computers can be powerful tools if used properly, especially in the…

Series Circuits and the Application of Ohm’s Law

Textbook

In this introduction to series resistance circuits, we will explain…

Permissive and Interlock Circuits

Textbook

A practical application of switch and relay logic is in control…

The Common-base Amplifier

Textbook

The final transistor amplifier configuration (Figure below) we need to…

The D Latch

Textbook

Since the enable input on a gated S-R latch provides a way to latch…

Flyback Switch Mode Regulator Calculator

Tools

A calculator for computing several parameters needed in the design of a flyback switch mode regulator

Kirchhoff’s Laws

Worksheets - Modulation

Many electronic circuits use what is called a split or a dual power…

Design Project: LED Stroboscope

Worksheets - Modulation

A technician uses a stroboscope to “freeze” the rotation of a…

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Digital Display Circuits

Worksheets - Modulation

What is the purpose of a seven-segment decoder circuit? What is a…

Table (landscape view)

Textbook

Periodic table of chemical elements.

Active Loads in Amplifier Circuits

Worksheets - Modulation

We know that the current in a series circuit may be calculated with…

Clipper Circuits

Textbook

A circuit which removes the peak of a waveform is known as a clipper.…