Categories

EIRP Calculator

Tools

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

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.

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

Design Project: Telegraph System

Worksheets - Telecom

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.

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.

Digital Communication

Worksheets - Telecom

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

Passive Filter Circuits

Worksheets - Telecom

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.

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.

Friis Transmission Calculator

Tools

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

A 50-Ohm Cable?

Textbook

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

Radar Maximum Range Calculator

Tools

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

Nonlinear OpAmp Circuits

Worksheets - Telecom

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

Light-Pulse Switch

Worksheets - Telecom

It is fairly important to use large value resistors (10 MΩ works…

Inductance

Worksheets - Telecom

∫f(x) dx Calculus alert! One of the fundamental principles of…

What Are Electric Circuits?

Textbook

You might have been wondering how charges can continuously flow in a…

Ammeter Impact on Measured Circuit

Textbook

Just like voltmeters, ammeters tend to influence the amount of current…

Karnaugh Mapping

Worksheets - Telecom

Identify each of these logic gates by name, and complete their…

Delta-Sigma ADC

Textbook

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

Resistors

Worksheets - Telecom

Shown here is the schematic symbol for a resistor: What is the purpose…

DC Lab - Parallel Batteries

Textbook

In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.

The Cascode Amplifier

Textbook

While the C-B (common-base) amplifier is known for wider bandwidth…

Design Project: Radio Transmitter

Worksheets - Telecom

Research the FCC (Federal Communication Commission) guidelines on…

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Precise Diode Circuits

Worksheets - Telecom

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

Series-parallel R, L, and C

Textbook

Now that we’ve seen how series and parallel AC circuit analysis…

Programmable Logic Controllers

Worksheets - Telecom

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

DC Lab - An Analog Computer For Averaging

Textbook

In this hands-on electronics experiment, you will build a simple circuit that computes the average of voltages and learn about analog computers and their application.

Passive Integrator and Differentiator Circuits

Worksheets - Telecom

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

Design Project: Event Counter

Worksheets - Telecom

If your event sensing switch is mechanical in nature, you will likely…

Design Project: DC Motor

Worksheets - Telecom

The armature windings of your DC motor will have very low resistance.…

Transistors, Bipolar

Textbook

There are not too many circuit symbols for bipolar transistors. There…

Superconductivity

Textbook

Conductors lose all of their electrical resistance when cooled to…

Performance-Based Assessments for Semiconductor Circuit Competencies

Worksheets - Telecom

Current Mirror BJTs

Textbook

Bipolar Junction Transistor or BJT Current Mirror An often-used…

Impedance Matching With Transformers

Worksheets - Telecom

Suppose you were to take a 3 kW electric heater rated for 240 VAC and…

SPICE Simulation of Series and Parallel Circuits

Textbook

Previously, we examined series circuits and parallel circuits using…

Digital Codes

Worksheets - Telecom

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

Introduction to Digital Communication

Textbook

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

Successive Approximation ADC

Textbook

One method of addressing the digital ramp ADC’s shortcomings is…

Optothyristors

Textbook

Like bipolar transistors, SCRs and TRIACs are also manufactured as…

Electrical Transients

Textbook

This chapter explores the response of capacitors and inductors to…

The NOT Gate

Textbook

The single-transistor inverter circuit illustrated earlier is actually…

Design Project: Sensitive Microphone Amplifier

Worksheets - Telecom

Identify which direction each potentiometer wiper must move in this…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

The P-N Junction

Textbook

If a block of P-type semiconductor is placed in contact with a block…

IGFET Quirks

Textbook

Contributors (4)

Textbook

Contributors to this chapter are listed in chronological order of…

Biasing Techniques (IGFET)

Textbook

Other Diode Technologies

Textbook

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

Passive Integrator and Differentiator Circuits

Worksheets - Telecom

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

Permeability and Saturation

Textbook

The nonlinearity of material permeability may be graphed for better…