math

Two-Wire Transmission Line - 2 wire transmission line explained

Fractal Antennas Offer Benefits - Since they were first described by the French mathematician Benoit Mandelbrot in the mid-1970s, repeating geometric figures known as fractals have fascinated computer scientists, mathematicians and graphic artists.

Exploring the secrets of the Smith chart - If you're a Radio Engineer wannabee, you need to understand transmission lines. It's impossible to really understand transmitters and antennas without understanding lines. Using the Smith chart is far easier than really understanding the math by Chris Scott and associates

Richmond Amateur Radio - The RARC is the oldest ARRL affiliated club in Virginia. Founded in 1929 by Ted Mathewson, W4FJ one of the earliest Ham Radio Operators licensed by the FCC.

RF Cafe - Amateur Radio Links - RF Cafe is a unique portal of RF, microwave, wireless, and other engineering resources. Vast collection of equations, references and conversions for electrical, mechanical, physical, and mathematical fields.

Digital ATV in simple terms - This article was first published in CQ-TV issue 208. Author try to explain digital television in layman’s terms and without getting too involved in mathematics.

A new method of radio direction finding Priority listing - A method of finding radio sources with antennas based on omni-directionality (the less directional the better coverage). Uses energy levels and some sophisticated math (encompassed in a free software download on the site) to find x,y,z coordinates of the fox relative to the center of your antenna array. Can be overlayed on a GPS map to help you locate in real-time.

VU2BBB Repeater - Matheran, Maharashtra started by Bombay Repeater Society in late 1980s.

Keplerian Elements - Keplerian elements are the inputs to a standard mathematical model of spacecraft orbits.

Keplerian Elements - Keplerian elements are the inputs to a standard mathematical model of spacecraft orbits.

European weather charts - updated every six hours at about 3,9,15,21 GMT, Isobars, isallobars, isotherms and signifcant weather.

The KB6IBB Utilities - Ham radio frequency list consolidation software. The Ham Radio database can house a unlimited number of records. Holding frequency information from DC to Daylight. The Radio Scanner Database is designed to emulate a radio scanner. A 5,000 record table is provided and is organized by channel number.

M0KGK SDR Decoder Software - KGKSDR is my attempt at some SDR decoding software. I'm putting this software together purely as a learning exercise, to better understand the mathematics behind SDR in general.

Using Batteries - Batteries in fact and fiction. Batteries, Cells,Chemistry, Math and Radios

Spectral Analysis of a CW keying pulse - Key clicks mathematical explanation by W9CF