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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.

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

IV3IPS Website - Audio & Video clips, News, Contest, Links, Download and other.

Web-controlled Shortwave Radio  ^pop - Drake R8 Communications Receiver Reston Virginia, USA

PA3ANG Online Receivers - Control an ICOM PCR-100 and listen to the audio stream. This web controlled receiver si based in the Netherlands by PA3ANG and offer 10kHz - 1300MHz in AM, FM, FMW

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.

INRAD International Radio - Supplier of custom designed, high performance quartz crystal filters for communications receivers and transceivers, for Yaesu Icom Kenwood and Collins radios

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

SDR-Kits.net - USB-Controlled Synthesizer for Softrock RXTX and Local Oscillator Applications

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

Meteors Q&A - very informative, answers questions like what is forward scatter, how does a meteor reflect radio waves ?

Amateur Packet Radio Networking - Packet Radio Networking Information by CQ Magazine Packet Editor Buck Rogers, K4ABT

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.

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

Electronic Service Pros  ^pop - HAM/Broadcast, Modifications & Repair, D-104 mods, TS-830 TS-530 mods

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

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.

ProsKan KA1LPA - Dual screen, supports AVT modes,16 Milions col, auto call insert facilities.

W95SSTV - by N7CXI, runs in Windows 95 and need sound card to receive and transmit.

EZSSTV - Freeware SSTV program by WB2OSZ, Automatic Calibration, Automatic Fine Tuning, Widest Variety of File Types

J-Track - With J-Track you can quickly and easily keep track of your favorite orbiting objects.

MScan Meteo - The revolutionary program, combining the ability to decode FAX, NAVTEX and RTTY signals, make VOICE recordings and view GRIB files in a single program!