URLs listed in this category:
Antenna Elmer
Information about wire antennas as well as directional beams.
http://www.qsl.net/w4sat/antenna.htm
antenneX Home Page
antenneX Online, a magazine all about antennas and radio!
http://www.antennex.com/
Dipole Antenna
Constructional details for dipoles, including a calculator for dipole lengths.
http://www.angelfire.com/mb/amandx/dipole.html
M0SBF Amateur Radio Station Antennas
Details of indoor, attic amateur radio HF antennas.
http://www.stevelarkins.freeuk.com/antennas.htm
N4UJW Antenna Design Lab
Lots of antenna designs.
http://www.hamuniverse.com/antennas.html
Transmitting Baluns
How to test baluns used for transmitting.
http://www.w8ji.com/transmitting_baluns.htm