Categories

A 50-Ohm Cable?

Textbook

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

Friis Transmission Calculator

Tools

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

EIRP Calculator

Tools

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

Q Factor and Bandwidth of a Resonant Circuit

Textbook

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

Radar Maximum Range Calculator

Tools

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

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.

A 50-Ohm Cable?

Textbook

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

Passive Filter Circuits

Worksheets - Modulation

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.

Balanced Attenuator Calculator

Tools

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

Digital Communication

Worksheets - Modulation

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

Design Project: Telegraph System

Worksheets - Modulation

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

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.

Potentiometers

Worksheets - Modulation

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

L-Match Impedance Matching Circuits

Tools

This calculator is designed to compute for the parameters needed to design a L-Match Impedance Circuit

Power in Electric Circuits

Textbook

In addition to voltage and current, there is another important…

Step-up and Step-down Transformers

Textbook

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

Early Tube History

Textbook

Thomas Edison, that prolific American inventor, is often credited with…

Static Electricity

Textbook

It was discovered centuries ago that certain types of materials would…

Memory with moving parts: “Drives”

Textbook

The earliest forms of digital data storage involving moving parts was…

LED Sequencer

Textbook

PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…

Data - Resistance & Superconductor

Textbook

Tables of specific resistance and temperature coefficient of…

Voltage Divider

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Polar Form and Rectangular Form Notation for Complex Numbers

Textbook

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

Sum and Product Notation

Textbook

For reference, this section introduces the terminology used in some…

Transistors, junction field-effect (JFET)

Textbook

Note that the direction of the arrow at the gate indicates the…

Factors Affecting Inductance

Textbook

There are four basic factors of inductor construction determining the…

Time Constant Equations

Textbook

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

Microwave Tubes

Textbook

For extremely high-frequency applications (above 1 GHz), the…

TTL NAND and AND gates

Textbook

Suppose we altered our basic open-collector inverter circuit, adding a…

Binary Count Sequence

Textbook

If we examine a four-bit binary count sequence from 0000 to 1111, a…

Design Project: Radio Transmitter

Worksheets - Modulation

Research the FCC (Federal Communication Commission) guidelines on…

Ionization (gas-filled) Tubes

Textbook

So far, we’ve explored tubes which are totally…