Categories

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

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.

EIRP Calculator

Tools

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

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

Passive Filter Circuits

Worksheets - Telecom

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

Design Project: Telegraph System

Worksheets - Telecom

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

Digital Communication

Worksheets - Telecom

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

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.

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.

Balanced Attenuator Calculator

Tools

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

Thevenin’s Theorem

Textbook

Thevenin’s Theorem states that it is possible to simplify any…

Meter Check of a Transistor (BJT)

Textbook

Bipolar transistors are constructed of a three-layer semiconductor…

The Antiderivative (Indefinite Integral)

Textbook

  Notice something important here: taking the derivative of f(x)…

Bridge Circuits

Textbook

No text on electrical metering could be called complete without a…

Electric Fields and Capacitance

Textbook

Introduction Whenever an electric voltage exists between two separated…

Transistor Biasing Calculations

Textbook

Although transistor switching circuits operate without bias, it is…

Three-phase Transformer Circuits

Textbook

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

Trigonometry for AC Circuits

Worksheets - Telecom

Identify which trigonometric functions (sine, cosine, or tangent) are…

Single-phase Power Systems

Textbook

Single phase power system schematic diagram shows little about the…

AC Commutator Motors

Textbook

Charles Proteus Steinmetz’s first job after arriving in America…

Step-up and Step-down Transformers

Textbook

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

An Analogy for Divided Feedback

Textbook

A helpful analogy for understanding divided feedback amplifier…

The Shockley Diode

Textbook

Our exploration of thyristors begins with a device called the…

Time Constant Circuits

Worksheets - Telecom

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

Inductor Quirks

Textbook

In an ideal case, an inductor acts as a purely reactive device. That…

Design Project: Sensitive Audio Detector

Worksheets - Telecom

The choice of step-down transformers to use in a project such as this…

Class B Audio Amplifier

Textbook

PARTS AND MATERIALS Four 6 volt batteries Dual operational amplifier,…

Conductors and Insulators

Worksheets - Telecom

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

Inductors and Calculus

Textbook

Inductors do not have a stable “resistance” as conductors…

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.

Wires and Connections

Textbook

Older electrical schematics showed connecting wires crossing, while…

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Time Constant Equations

Textbook

Value of time constant in series RC and RL circuits   Time…

T-Pad Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.

Computational Circuits

Textbook

When someone mentions the word “computer,” a digital…

555 Timer Monostable Circuit Calculator

Tools

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

Divided Feedback

Textbook

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

Precision Potentiometer

Textbook

PARTS AND MATERIALS Two single-turn, linear-taper potentiometers, 5…

Boolean Algebraic Properties

Textbook

Another type of mathematical identity, called a “property”…

Programmable Logic Controllers

Worksheets - Telecom

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

Semiconductor Devices in SPICE

Textbook

The SPICE (Simulation Program, Integrated Circuit Emphesis)…

Series Resistor-Capacitor Circuits

Textbook

In the last section, we learned what would happen in simple…

The Common-collector Amplifier

Textbook

Our next transistor configuration to study is a bit simpler for gain…

Shift Registers: Serial-in, Serial-out

Textbook

Serial-in, serial-out shift registers delay data by one clock time for…

Switches, Electrically Actuated (Relays)

Textbook

The structure behind ladder logic is based on the electrical ladder…

Polar Form and Rectangular Form Notation for Complex Numbers

Textbook

In order to work with complex numbers without drawing vectors, we…

Conductor Ampacity

Textbook

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

Relay Construction

Textbook

Electricity and Magnetism An electric current through a conductor will…

Design Project: Sensitive Microphone Amplifier

Worksheets - Telecom

Identify which direction each potentiometer wiper must move in this…

Contributors (8)

Textbook

Contributors to this chapter are listed in chronological order of…