Latest Optical Communication Education

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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.

Design Project: Telegraph System

Worksheets - Optical Communication

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

Balanced Attenuator Calculator

Tools

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

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.

Passive Filter Circuits

Worksheets - Optical Communication

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

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

EIRP Calculator

Tools

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

Digital Communication

Worksheets - Optical Communication

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.

Radar Maximum Range Calculator

Tools

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

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Ring Counters

Textbook

If the output of a shift register is fed back to the input. a ring…

Insulated Gate Field-Effect Transistors

Worksheets - Optical Communication

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

A 50-Ohm Cable?

Textbook

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

Microphones

Worksheets - Optical Communication

Explain how a moving-coil, or dynamic microphone works. Identify how…

AC Lab - Signal and Noise Coupling

Textbook

In this hands-on AC electronics experiment, power a DC motor through a multi-conductor cable to learn how AC signals are coupled between conductors and how to mitigate noise coupling.

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.

Octal and Hexadecimal to Decimal Conversion

Textbook

Although the prime intent of octal and hexadecimal numeration systems…

An Electric Pendulum

Textbook

Capacitors store energy in the form of an electric field, and…

Solid-state Relays

Textbook

Limitations of Electromechanical Relays As versatile as…

Phase-locked Loops

Textbook

The Common-collector Amplifier

Textbook

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

AC Negative Feedback OpAmp Circuits

Worksheets - Optical Communication

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

What is a Series-Parallel Circuit?

Textbook

With simple series circuits, all components are connected end-to-end…

Decibel Calculator

Tools

This calculator will convert voltage or power gains into decibels. Enter one of the three values and the calculator will output the other two.

Voltage, Current, and Resistance

Worksheets - Optical Communication

Voltage is commonly defined as “electrical pressure.” The unit of…

Boolean Algebraic Properties

Textbook

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

Negative Binary Numbers

Textbook

With addition being easily accomplished, we can perform the operation…

Noise Figure Calculator

Tools

A tool designed to calculate the noise figure of cascaded amplifiers

Calculus for Electric Circuits

Worksheets - Optical Communication

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…