Categories

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.

Radio Circuits

Textbook

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

Optical Data Communication

Textbook

A modern alternative to sending (binary) digital information via…

EIRP Calculator

Tools

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

Signal Modulation

Worksheets - Antennas

A modern method of electrical power control involves inserting a…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Introduction to Digital Communication

Textbook

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

Microstrip Patch Antenna Calculator

Tools

This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency.

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.

Waveguides

Textbook

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

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

BJT Quirks

Textbook

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

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Principles of Radio

Textbook

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

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Fundamentals of Radio Communication

Worksheets - Antennas

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…

Passive Filter Circuits

Worksheets - Antennas

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

Electrical Signal Types

Textbook

With BogusBus, our signals were very simple and straightforward: each…

AC Instrumentation Transducers

Textbook

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

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Rectifier Circuits

Textbook

What is Rectification? Now we come to the most popular application of…

Electromagnetism

Textbook

The discovery of the relationship between magnetism and electricity…

Bandpass Filter Calculator

Tools

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

Inductance, Reactance, and Admittance Calculator

Tools

This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor

Frequency and Phase Measurement

Textbook

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

AC Waveforms

Textbook

When an alternator produces AC voltage, the voltage switches polarity…

Reflection Attenuator Calculator

Tools

This tool is designed to calculate the value of resistance R1 in a reflection attenuator.

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.

RF Power Conversion Calculator

Tools

A tool designed to convert RF power from watts to decibels and vice versa

Principles of Radio

Textbook

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

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

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.

Harmonic Phase Sequences

Textbook

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

Fundamentals of Radio Communication

Worksheets - Antennas

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

Microstrip Max Current Calculator

Tools

A calculator for solving the maximum current a microstrip can handle.

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

Waveguides

Textbook

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

Waveguide Calculator (Circular)

Tools

This tool calculates the cutoff frequency of a circular waveguide

Design Project: Radio Transmitter

Worksheets - Antennas

Research the FCC (Federal Communication Commission) guidelines on…

NAND Gate S-R Flip-Flop

Textbook

PARTS AND MATERIALS 4011 quad NAND gate (Radio Shack catalog #…

555 Timer Monostable Circuit Calculator

Tools

This calculator computes for the output pulse width of a 555 timer monostable circuit

Edge Coupled Stripline Impedance Calculator

Tools

A calculator for computing the impedance of an edge coupled stripline.

Elementary Circuits

Worksheets - Antennas

In the simplest terms you can think of, define what an electrical…

Inductor Transient Response

Textbook

Inductors have the exact opposite characteristics of capacitors.…

Basic Logic Gate Troubleshooting

Worksheets - Antennas

Counting practice: count from zero to thirty-one in binary, octal, and…

SPICE Models

Textbook

The SPICE circuit simulation program provides for modeling diodes in…

Conductors and Insulators

Worksheets - Antennas

Given two lengths of metal wire, which one will have the least…

True, Reactive, and Apparent Power

Textbook

Reactive Power We know that reactive loads such as inductors and…

Coax Inductance Calculator

Tools

A calculator for computing the inductance of a coaxial cable.

Induction Motor

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Microprocessor Programming

Worksheets - Antennas

What is the difference between a JMP (“jump”) instruction and a…

Quantum Devices

Textbook

Most integrated circuits are digital, based on MOS (CMOS) transistors.…

Delta-Sigma ADC

Textbook

One of the more advanced ADC technologies is the so-called…

Complex Circuits

Textbook

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

Physical Effects of Electricity

Worksheets - Antennas

Certain substances are known to physically deform (shorten or…

Single-phase Power Systems

Textbook

Single phase power system schematic diagram shows little about the…

Active Versus Passive Devices

Textbook

Passive Devices Components incapable of controlling current by means…

Series-Parallel Combination AC Circuits

Worksheets - Antennas

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

Rectifier Circuits

Textbook

What is Rectification? Now we come to the most popular application of…