440 mhz slim jim antenna

The Kite and Balloon Antenna Site - A complete site for anyone wanting to use kites or balloons for supporting Top Band antenna systems.

Double Extended Zepp Antenna  ^pop - This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.

How To Make A Homebrew 4:1 Balun  ^pop - I built a homebrew 75 meter Double Extended Zepp Antenna, And I needed a 4:1 Balun So I decided to Homebrew the Balun also. Here is how I did it!

KB1DIG's 2 Meter Antenna Design Gallery  ^pop - Home-brew antenna designs for VHF. 2-meter colinears, 2-meter Halo, and 6-meter Halo

Testing EH Antennas - EH antenna tests report by Claudio Re, I1RFQ in pdf format

W8JI Technical pages  ^pop - Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks.

Limited space antennas - My site describes several compact antenna designs.

ARI CZ 10 meter beacon - A 28 mhz beacon transmitting from south italy

This Week in Amateur Radio - Amateur Radio News and Information Bulletin Service delivered via satellite on AMC-7, transponder 5, 7.5 MHz wideband audio and over the internet in MP3 and RealAudio format

BSC Associates - A consultant's site with a wide range of material relating to antennas for many applications.

NI4L custom dipoles - ni4l resonant dipole custom fan dipole antenna hf

KB9VBR J-Pole Antennas - All copper J-Pole antennas for sale. 6 meter, 2 meter, 222 MHz, 440 MHz, LPFM, Marine, GMRS. Includes a construction plan in pdf format if you wish to build your own antenna.

KB6KQ Loop antennas - Horizontally polarized, omnidirectional loop antennas for VHF and 70cm amateur bands

Laipac Technology Inc. - We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking

Hidetsugu Yagi : Father of Yagi Antenna - The Yagi Antenna is a directional antenna invented by Dr. Hidetsugu Yagi of Tohoku Imperial University and his assistant, Dr. Shintaro Uta.

50 Mhz Dx & Audio Files - Lage collection of 6 Meters and 2 meters QSOs, recorded in real audio format by OE3MWS

Quadrifilar helicoidal antenna - Design your own quadrifilar helix, the site even generates a drilling pattern in a PDF file. Several different construction methods are shown.

Elettronica Turrisi - TRasceivers HF-VHF-UHF, repeaters, GPS, antennas, based in italy

Radio Pro Shop - 11 Meter CB, 10 Meter Amateur Ham, FRS, GMRS Radios, Test Meters, Scanners, Antennas, Microphones, Power Supplies, Inverters, Accessories and Technical Reference Information.

AMANDX - AMANDX is a site dedicated to the new listener. There are articles on antennas receivers etc.

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

MultiNEC - MultiNEC can automate the repetitive steps of antenna modeling. You can start by building the model from scratch or by importing an existing model in any of several formats. Then you can run multiple test cases while letting the program make small changes to the model between runs. MultiNEC can be used by itself if you like, but it really shines when used in conjunction with your existing antenna modeling program. MultiNEC works with EZNEC Standard, EZNEC-M Pro, EZNEC/4 Pro, NEC-Win Plus+, NEC-Win Pro, GNEC, Antenna Model (Teri Software), and 4nec2

Ve3sqb Antenna Programs - Programs for common antennas and some experimental, includes, dipoles, quad, Yagi, verticals, discone, jpole skyhoppers and parabolic antennas

HF Analyzer - Professional analyser HF signals, work with bandwidth 500Hz....60Mhz, ddc-mode, scope, spectrum

Radio QRP - The Art of Low Power - QRP is The Art of Low Power Radio where the challenge is to operate and/or build AM radio transmitters usinga bare minimum of components, money and construction skill.