wifi propagation

WiFI Collinear antenna - Pictures and homebrew instructions for this collinear 2.4 Ghz antenna

CORNET 2.4 giga WIFI antenna

VE6FI Contest station - Amateur radio, building antennas, wifi link, remote control of radio, 80 meter beam, contesting, ve6fi station

NGDRT 10 Meter Beacon - NGDRT now sponsors the K4AIS beacon at 28270.5 KHz. Feel free to use this beacon anytime you want to see the propagation into North Georgia.

K5DZE Becon - The K5DZE/B 10 Meter Beacon currently operates on 28.228 MHz 24/7 transmitting a CW signal at 18 WPM as an aid to check 28 MHz propagation Northern Kentucky

W0ERE Beacon - To provide a continuous signal on the ten meter amateur radio band for propagation-related monitoring

10 Meter Synchronized Propagation Beacon Project - Project started by several 10 meter beacon operators in an ad-hoc fashion to experiment with operating 10 meter beacons similar in concept to the IARU beacon project

SKØCT/B - Propagation Beacon, Sweden,Stockholm,Sollentuna

N1KXR/B Ten-Meter Propagation Beacon - The N1KXR/B went on the air at 21:00 Hours EST on Saturday, November 22, 2008. This beacon is coordinated with the IARU Region 2 HF Beacon Coordinator and is located in Deerfield, Massachusetts USA

DX Italia Propagation forecast - Propagation forecast for current month edited by I2MQP in italian

Ham Radio Chat NZ3M - A little meeting place with real time chat for ham radio ops. Includes dx spotting, propagation monitoring and more. Chat while working DX!

Operating NVIS - Near Vertical Incidence Sky Wave (NVIS) Propagation, PPT presentation by Marc C. Tarplee, Ph.D. N4UFP

W1TAG WD2XES WE2XGR/3 - Experimental Stations Run by W1TAG WD2XES has been used to study LF antenna design, propagation and communication modes. Signals from WD2XES have been copied as far away as Russia.

Operating Meteorscatter - Meteorscatter (MS) describes a propagation mode whereby the signal is reflected from rather small ionised patches in the E-region of the ionosphere.

Sporadic-E propagation at VHF - This review of progress and future Prospects provides a practical guide for effective use of VHF sporadic-E propagation. By Emil Pocock, W3EP.

An Introduction to 24 GHz - Article provides a guide on how to use 24 GHz band and what to expect, including Active modes, equipment, propagation and antennas for this band in by VE3SMA

Long Range Wi-Fi - Long range Wi-Fi antennas you can build. Helicals, parabolics, and biquads discussed. How to add external antennas to WUSB54GC and F5D7050 usb wireless adapters for long range connections.

Understanding Amateur Radio NVIS - Understanding Amateur Radio NVIS Antennas and Propagation, derived from The ARRL Antenna Book and QST Articles

What is NVIS - differences from groundwave propagation

NVIS Propagation maps - Maps and propagation indices

NVIS Propagation - Kingston Amateur Radio Club Articles Dave Lawrence, VA3ORP

Radio Signal Propagation - Concise guides to radio signal propagation including topics such as the ionosphere, troposhere, ionospheric refraction, E layer, D, layer etc.

HamInfoBar - Ham Radio & SWL Toolbar Priority listing - Free toolbar for radio hams & SWLs: Search QRZ.com, HamCall, FindU.com, Google, Wikipedia, eBay and other useful engines. Check the latest DX spots. Get links to QSL, satellite, forums, propagation, broadcast radio, maps etc. RSS feeds including Amsat & the latest eBay ham specials. Listen to ARRL, RSGB and WIA news & other radio stations. Plus lots of other features!

SPLAT! for Windows - This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane.

iLocator for iPhone - A small application for Apple iPhone that calculate grid locator from gps, wifi or gsm cells by IW2BSQ