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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…

Other Diode Technologies

Textbook

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

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Radio Circuits

Textbook

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

Passive Filter Circuits

Worksheets - Software-Defined Radio

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

BJT Quirks

Textbook

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

Maximum Power Transfer Theorem

Textbook

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

Fundamentals of Radio Communication

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

Mixed-Frequency Signals

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What is a harmonic frequency? If an oscillator circuit outputs a…

Design Project: Radio Transmitter

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Research the FCC (Federal Communication Commission) guidelines on…

Phase-Locked Loops

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

Signal Modulation

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A modern method of electrical power control involves inserting a…

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Worksheets - Software-Defined Radio

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

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

AC Instrumentation Transducers

Textbook

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

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

What is Network Analysis?

Textbook

Generally speaking, network analysis is any structured technique used…

Half-wave Rectifier

Textbook

PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) 6-volt…

Optical Data Communication

Textbook

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

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

High-pass Filters

Textbook

A high-pass filter’s task is just the opposite of a low-pass…

Principles of Radio

Textbook

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

Radio Circuits

Textbook

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

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.

Friis Transmission Calculator

Tools

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

“Long’’ and “Short’’ Transmission Lines

Textbook

In DC and low-frequency AC circuits, the characteristic impedance of…

LC Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.

Mutual Inductance

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When an electric current is passed through a coil of wire, what…

Waveguides

Textbook

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

Capacitance, Reactance, and Admittance Calculator

Tools

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

Balanced Attenuator Calculator

Tools

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

Design Project: Pulse-Width Modulation (PWM) Signal Generator

Worksheets - Software-Defined Radio

What shape of voltage waveform would you expect to measure (using an…

Networks and Busses

Textbook

The wires between the tank and the monitoring location is  called…

Potentiometers

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

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.

Superposition Theorem

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

Rectangle Loop Inductance Calculator

Tools

This calculator helps you compute the inductance of a rectangle loop.

AC Voltmeters and Ammeters

Textbook

AC electromechanical meter movements come in two basic arrangements:…

Conductors, Insulators, and Electron Flow

Textbook

The electrons of different types of atoms have different degrees of…

Design Project: AC-DC Power Supply

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Safety is very important when designing and/or building a device…

Logarithms for Analog Circuits

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The concept of a mathematical power is familiar to most students of…

Gas Discharge Tubes

Textbook

If you’ve ever witnessed a lightning storm, you’ve seen…

Band Theory of Solids

Textbook

Quantum physics describes the states of electrons in an atom according…

Introduction to Diodes And Rectifiers

Textbook

All About Diodes A diode is an electrical device allowing current to…

Insulator Breakdown Voltage

Textbook

The atoms in insulating materials have very tightly-bound electrons,…

Questions relating to project management

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NAME:…

Power Added Efficiency Calculator

Tools

A calculator designed to compute the power-added efficiency (PAE) of an amplifier

Divided Feedback

Textbook

If we add a voltage divider to the negative feedback wiring so that…

The NOT Gate

Textbook

The single-transistor inverter circuit illustrated earlier is actually…

Conductor Size

Textbook

It should be common-sense knowledge that liquids flow through…

Peak to Peak Voltage Calculator (VP-P)

Tools

This calculator shows the peak-to-peak voltage (VP-P) value from the peak voltage, RMS voltage, or average voltage.

Series and Parallel AC Circuits

Worksheets - Software-Defined Radio

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