40m vertical 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.

LF Receiving Loop - A really simple LF receiving loop antenna

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

GeoTool - Pickup truck stake pocket antenna mount by geotool

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

Sirtel - Sirtel produces a wide range of radio and telecommunications antennas

Giovannini Elettromeccanica - Quad, Yagi for low bands. Specialist in antennas, supports and moving of medium-large sized radio antennas, professional rotators, masts, towers, and accessories.

Cushcraft  ^pop - Cushcraft Amateur Radio and commercial antennas HF and VHF vertical and yagi antennas owned by MFJ.

C3I Antennas - The finest in VHF/UHF antennas for Amateur and Commercial Applications. Antennas and Repeater Controller Accessories includes Rutland Arrays.

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

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

The Adcock HF RDF Antenna - The Adcock antenna has been used for a long time for RDF. It is basically an interferometer.

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.

High Sierra Antennas - HF and VHF antennas for cars, trucks, homes, trailers and recreational vehicles

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

Antenna Systems & Supplies - Antennas, cables, Grounding Equipment, shelters and towers.

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

Antenna Visualization  ^updated - 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.

40 meter 100 watt Transmitter - 40 meter transmitter by K9GDT

40 meter CW/SSB Receiver - The K9GDT 40m receiver