Categories

A 50-Ohm Cable?

Textbook

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

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.

EIRP Calculator

Tools

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

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?

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.

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

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.

Friis Transmission Calculator

Tools

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

Passive Filter Circuits

Worksheets - Modulation

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

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.

AC Lab - Frequency Analysis

Textbook

In this hands-on AC electronics experiment, use the frequency spectrum display from an oscilloscope program to observe waveforms from a musical keyboard and learn about spectral analysis.

Reluctance Motor

Textbook

The variable reluctance motor is based on the principle that an…

Edge Coupled Microstrip Impedance Calculator

Tools

This tool helps calculate the impedance of an edge-coupled microstrip.

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.

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

Analog Lab - Introduction

Textbook

In this series of hands-on electronics experiments, build analog circuits, including amplifiers, comparators, oscillators, and more. Following the step-by-step instructions will help you understand and appreciate analog systems.

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…

Insulated Gate Bipolar Transistors

Worksheets - Modulation

What is an Insulated Gate Bipolar Transistor (IGBT), and what…

Amplifier Circuits

Textbook

Note, Q3 and Q4 in the figure below are complementary, NPN and PNP…

Logarithms

Textbook

Definition of a Logarithm     “log” denotes a…

Decimal versus Binary Numeration

Textbook

Let’s count from zero to twenty using four different kinds of…

Programmable Logic Controllers

Worksheets - Modulation

The Programmable Logic Controller, or PLC, was invented in the late…

The Gated S-R Latch

Textbook

It is sometimes useful in logic circuits to have a multivibrator which…

Nonlinear Conduction

Textbook

“Advances are made by answering questions. Discoveries are made…

Capacitance Calculator

Tools

This calculates the capacitance of a capacitor based on its charge, Q, and its voltage, V, according to the formula, C=Q/V.

Clamper Circuits

Textbook

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

Contact “Bounce”

Textbook

When a switch is actuated and contacts touch one another under the…

Encoder

Textbook

What is an Encoder? An encoder is a circuit that changes a set of…

Conductor Ampacity

Textbook

The smaller the cross-sectional area of any given wire, the greater…

Electrical Noise and Interference

Worksheets - Modulation

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