wifi propagation

Helical Antenna for WiFi - Improved Helical Antenna Design for 802.11b WLAN by PA0HOO

The Optimum 6 Element Yagi-Antenna - A 70cm and 2m 6 elements yagi antenna plan based on the IEEE Transactions on Antennas and Propagation

Homebrew WiFi Antennas - Lincomatic's Homebrew WiFi Antennae, Cantenna, Toothpick Monopole, Patch Antenna, BiQuad, collinear wifi antenna all in one page

Homemade USB wifi antenna - Homemade usb wifi antenna projects on WLAN 802.11

How to extend your Wireless Network  ^updated - How to extend your Wireless Network by building a 2.4 gHz wifi cantenna

Long Range Wi-fi Dish Antenna - Build parabolic WLAN antenna adapted from a small satellite dish. It provides high gain and long range connections.

Hot to test a homebrew wifi antenna - Homebrew Wifi antenna test page

Simple Wi-Fi Yagi - Simple Wifi Yagi antenna for under $10

2J Antenna - Profesional GPS, GSM, Telematics, Yagi, WIFI antennas by 2J antennas

AIR 802 Antennas - Manufacturer of WiFi (2.4 & 5 GHz), Marine WiFi, Military and other antennas of various frequencies and styles.

Megawave - MegaWave Corporation's goal is to provide services and products of the highest quality to its many customers in the areas of antenna design and development, and radiowave propagation.

VHF Propagation Maps - Experimental maps that show real-time VHF propagation derived from analyzing data gathered from the APRS-IS network.

Analyzing UHF signals using FFT programs - With spectrum analysis of beacon signals, it's possible to see features relating to various propagation phenomonen.

Meteor scatter or meteor burst communications - A summary, overview or tutorial covering the basics of Meteor Scatter or Meteor Burst Communications, a form of radio signal propagation often used at VHF.

RF Skywave Propagation - Excellent presentation on RF skywave propagation by Greg, N6LYU

An introduction to HF Propagation - This article will help to unravel some of the mysteries as well as giving useful operating tips to maximize your chances of working that rare station by G4UCJ

WM5R Long Delayed Echoes - WM5R presentation of Introduction to Long-delaye echoes and theories among this propagation effect.

VOACAP Online - Online professional-grade high-frequency (3-30 MHz) propagation predictions

Here Comes the Sun - Propagation and Sun - Solar activity can aid or hamper HF propagation beyond line-of-sight range, WA1SVF and N6BV answers to questions about Sun influence on radio signals propagation

Propagation and the Atmosphere - overview of radio signals and radiowave propagation and how different areas of the atmosphere affect radio communications.

Sporatic-E on 10 meters band - Understanding 10 Meter sporatic-e propagation by James R. Duffey

JefaTech - Coax Cables and RF connectors, mobile antennas, cantenna supplies and kits, wifi antennas and adapters, antenna mounts, surge protectors

Radio Works - RadioWORKS is a tool for calculating various items related to radio waves and radio wave propagation. Get detailed information about a frequency, such as the free-space wavelength, band classification, propagation methods, common transmitter configurations, etc. Calculate antenna lengths or frequencies. View a 3D coverage map by providing a latitude / longitude coordinate and transmitter height.

VOACAP for Linux - Port of the popular VOACAP program, HF propagation prediction tool. It may be compiled using the GCC GFortran compiler

VOAProp - VOAProp shows you typical propagation for a given hour of the day during a given month. The propagation is shown as expected signal strengths to be received from different parts of the world, plotted on a world map. Windows freeware by G4ILO