commander by dxzone

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.

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

AT Scotland Priority listing - AT Scotland official web site, managed by 108 AT 020 Colin

Contest Club Finland - Finnish Club dedicated to contest, with awards and reflector

Mongolia DX Association - Mongolian DX club with a lot of dx info and an online DX newsletter

Grey Line Map - Earth view, with satellite data provided by The Living Earth.

Grey Map - Gray line map in black and white

GeoTool - Pickup truck stake pocket antenna mount by geotool

Texas Towers - Ham radio products, with on-line catalog and prices

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

Optoelectronics - DTMF, RF, decoders receivers and accessories icluding computer interface boards, frequency counters, tone decoders, spectrum sweeper and nearfield receivers

All Electronics Corp. - Surplus and electronics parts. On-line catalog available.

Morsex - Keys and paddles by morsex

Moon Calendar - Current moon phase and monthly moon calendar

SSTV by WB8DQT - Experiences, samples and software by WB8DQT

AMSAT Colorado - The Colorado AMSAT Net Page

Monitoring Times - Monitoring Times, SWL, BCL, montly reports, Broadcast band, satellite television, long-wave coverage, Reviews of new products and radio-related software.

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

Weather Satellite FAQ - A comprehensive guide to receive Weather Satellites signals in wefax mode

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.

GcmWin : Great Circle Map  ^pop - GCM is a freeware great circle map plotting software for windows, you can choose colours, scale, meridians, fields and or squares from the maidenhead locator system.