log periodic antenna

W6RCA's No-Tuner, All-HF-Band - W6RCA's No-Tuner, All-HF-Band, Horizontal, Center-Fed Antenna

Hybrid Antennas - Antennas that use a combination of vertical and horizontal polarisation.

The Gain of the Axial-Mode Helix Antenna - by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL.

Ferrite antenna for LF - A ferrite antenna for Low Freqencies

Short Vertical Antennas and Ground Systems  ^pop - This article describes how an effective ground system can be produced for a short vertical antenna.

Projects and Info Center - Antenna projects and info center by KP4AO, including The Optimized Wideband Antenna (OWA) Yagi and Skyhawk, a state-of-the-art trapless tribander

N. American Data Communications Museum - Telephony technology from telegraph to digital transmission

Real-Time Internet Radio - All about live Internet Radio Broadcasting, including links to stations throughout the world and articles on the technologies that make Internet Radio possible.

Comet Antennas  ^pop - Distributor for COMET and MALDOL brand antenna products designed, manufactured in Japan. Distributor of DAIWA brand RF SWR/power meters and switching power supplies.

Ant Panel Products - Planar UHF and Microwave Antennas for Hams and WLAN's

FR Radio Lab - Magnetic Loop antennas, also availble in parts from japan

WIMO - All kinds of antennas, RF connectors, radio transceivers and accessories like power supplies, morse keys, lowpass filters and so on.

A/D Technologies - A/D Technologies is a manufacturer and service company dedicated to providing unique and valuable products and services to ourcustomers.

Heros Technology Ltd - HF Radio Preselectors,BCB filters,Low Pass filters,Band Pass filter

CUBEX - Quad Antennas by CUBEX, Cubex currently offers Cubical Quad antennas for 2 meters through 40 meters.

Arrow Antennas - Hand held portable, 6 meters and satellite antennas

AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products

Titanex  ^pop - Low weight Titanium Verticals, Log-Periodics, Yagi antennas, Quads, towers and antenna accessories by Titanex

Satellite Tutorial - A good starting point to setup an Amateur Radio Satellite receiving system.

The DXZone Bookstore Priority listing - The DXZone Bookstore in association with amazon.com, here you can find the best titles for amateur radio world, including antenna construction.

RF Parts - Antennas, books, rf parts, tubes,connectors and cables and many accessories at RF parts.

Universal Radio  ^pop - Online Catalog. All about Radio comms, HF VHF Scanner CB radios, antennas and accessories

DOS programs by g4fgq - Small collection of DOS antenna design and RF calculations programs

Antenna Visualization - UNIX Application developped at the University of Texas Department of the Computer Sciences, permit to display the radiation pattern and the current magnitude.

W9DMK Software - Various radio related software, including some antenna analysis, and impedance calculators.