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A Wire Beam Design for 80 meters - by Dave Robbins, KY1H

Antenna Feeders - Different types of feeders, SWR and matching

Balanced Self Matching Feed Line System - KE4UYP designed this Balanced Self Matching Feed Line System for people who want the very best feed line they can have on a Monobanded antenna

All Band inverted L antenna - The inverted-L, using parallel feedline and an ATU, is an antenna with excellent potential as an all-band. Antennex article by W4RNL

Homebrew 6m quad - Homemade quad for 6m band, simple and cheap project by SA7AKE

Understanding Radiation Patterns - Understanding and using antenna radiation patterns

Antenna Gain - How much gain ? This article help you on understanding how read antenna gain values in order to evaluate antenna performance

The Clemens Match - About the clemens match for beam antenna, as an alternative to common gamma matching techniques

10 m Aerial Matching Unit - This simple matching unit will allow a 10 meters aerial to be used right across the 10m band without the need to physically adjust the elements, and offers a virtual 1:1 VSWR at 50 ohms impedance to the transmitter.

Chile Awards - More chielean awards including the Pablo Neruda Award

CSRA - Chicago Suburban Radio Association - Founded in 1924 CSRA is one of the oldest ham radio clubs in the USA

SEMDXA - SouthEast Michigan DX Association

WW8GM GM Amateur Radio Club - General Motors Amateur Radio Club - WW8GM EchoLink Repeater in SE Michigan

The Toledo Mobile Radio Association - A Ham Radio Organization serving Northwest Ohio and Southeast Michigan.

TRAC Toledo Radio Amateur Club - Serving all of Northwest Ohio and Southeast Michigan

Radio Club de Chile - Chilean amateur radio club

Butte County California Public Safety Scanner - Live scanner feed from Butte County, paradise/upper ridge, chico , california public safety

Acmetex - Acmetex Group Company is a leading integrated manufacture of high temperature textiles in China. Fiberglass products.

The ElectraSlide Antenna - Modification of the DK3 design by Don Johnson, W6AAQ. No voltage dropping, operates on the full 12 volts. The control switch and the matching toroid are supplied. All you need is a standard 3/8 by 24 thread ballmount, 2 wire sheilded microphone cable for control wiring, and a CB whip cut to resonance.

Accute Micro - China supplier of ceramic bandpass filters in standard resonator sizes of 2~6mm , 8mm , 10mm and 12mm with freqency from 400Mhz~4Ghz and sections 2~10

Universal VFO Controller - A controller that works with the new Silicon Laboratories Si570 programmable XO chip, as well as the Analog Device DDS chips used in the popular AMQRP cards by WA6UFQ

The Coherent CW Archives - Unofficial archive of the works from the early pioneers of Amateur Radio's digital communications era

Brown Brothers Machine Keys - The purpose of this article is to describe in detail the Morse code keys made by the Brown Brothers Machine Company (BBMC), to aid the serious key collector in identifying each model made by this fine company.

Portable AO-51 operations - AO-51 satellite LA/PA3GUO/P operations from Norway

NU-Tech - NU-Tech is a powerful DSP platform to validate and real-time debug complex algorithms, simply relying on a common PC. Thanks to an easy plug-in architecture, the developer can write his own NUTSs (NU-Tech Satellites) in C++ and immediately plug them into the graphical interface design environment.