long range wifi antenna

Crossed Field Antenna - The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current . These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength

HF Copper Loop  ^pop - A small transmitting loop antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR Based on material originally published in Amateur Radio, 11 1991

Build A Magnetic Loop  ^pop - Documents and schema on how to build a Magnetic Loop Antenna fo 80/30 mtrs

6dB colinear VHF antenna  ^pop - Building details of a VHF colinear antenna with 6 db gain

2 Element Quad Project - Homebrew quad antenna project you can build for very little cost for 12,11CB,10 meters and higher frequencies

2.4G Antenna - Pictures of 2.4 Ghz antennas, JN1GKZ S-band homemade antennas

Satellite tracking antenna  ^pop - A rugged motorized satellite antenna tracking system for construction by the home handyman

Antennas : theory and designs - Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL

Phone line as a SW antenna - This article describes how to use a phone line as a shortwave receiving antenna, but be carefull telephone lines present a potential shock hazard, use at your own risk

Delboy's PMR446 Radio - Pages relate to all things PMR446, Antenna, Modifications, DX, Long Distance Contacts, Users List, Reviews

Grumpy's Communications - Dealer for Charles Gizmotchy Beam Antennas

DPD Productions - Home of the TrainTenna and MilTenna. Uniquely designed antennas for Transmit or Receive Only, Indoors and Outdoors, Railroad, Aviation, Military, Ham, MURS, GMRS, and other services.

How to select an amplifier - Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures.

The History of amateur radio from 900BC to date - Thierry LOMBRY, ON4SKY, develops in depth and with original pictures the long history of amateur radio all through the world from 900 BC to date.

Adventures in GPS antenna construction - Adventures in amplified GPS antenna construction; an experiment

Handling GPS Antenna - Installation guidelines for static GPS Antennas

W2YMM Echolink Homepage - Information about our local Echolink Node #1224, on Long Island NY

How to wind a choke - How to build and properly wound an efficient RF choke to protect antenna controller in mobile setups

Basics of Propagation by ON4SKY - Thierry LOMBRY, ON4SKY, develops in several long articles the bascis of propagation. His website includes also a French section dealing with auroras.

Dominion Radio Astrophysical Observatory - operates the seven-antenna Synthesis Telescope (ST), the 26-meter Telescope, and the 10-cm Solar Flux Monitor. It is a member of the Canadian Galactic Plane Survey , a project to map 60 degrees of the Galactic plane at numerous wavelengths with a uniform sensitivity.

Antenna Masts & Mounts - Online shop for Rotators, masts, wall mounts, chimney mounts, tripods.

YagiCAD - A freeware software package for Yagi design. This webpage also contains many sample and standard antenna downloads for experimentation.

Azimuth - The AZIMUTH program plots a world map in either azimuth (beam heading) or Mercator projections. If you specify your home location in latitude and longitude, the azimuth projection is centred on your location. The Azimuth map program can display Maidenhead grids - this is useful for 6m, 2m, and UHF DX communication display. Various features of the map are: Azimuth or Mercator projections , Maidenhead grid display, Simple map zooming, Print maps with adequate resolution up to one meter sized map

2m Band VHF antenna pre-amplifier - Homebrew pre-amp for 144-146 MHz amateur band and OSCAR Satellites, using BF981 Dual-gate MosFet. Gain ~15 dB, NF=1dB.

Garex VHF preamp - It is available for spot frequencies in the range 40 - 250MHz, where a typical gain of 26dB can be achieved