case study

WB6ZQZ Triple Ratio Balun - This balun matches resonant antennas from 9 to 75 ohms without a tuner and provides RF isolation to keep the current off the transceiver case

End-fed Inverted V for 17-20-30-40 Meters - Four band lightweight antenna, that rolls up into an small Grundig antenna case by N0LX

Coaxial antennas - G3TXQ study on coaxial cable demonstrate that it can reduce an element's length by something approaching the Velocity Factor of the cable

Log Periodic of Another Sort - A log periodic dipole array (LPDA) antenna design that offer continuous low SWR in 13-30MHz range

The Case For Polarization Switching - WD0E, argues that the best antennas for working the most satellites are circularly polarized antennas that can be switched from right-hand-circular to left-hand-circular polarization.

Gunnar Olsen Study : Towers Collapsing - This study is of guyed tower failures and collapses to investigate what a typical tower fall radius would be.

Tower interactions - A study on vertical-tower interactions by N6LF

K4JDR 10 Meter Beacon - K4JDR /Beacon is a Uniden HR-2510 set up with a homebrew project case enclosure using a Com-Spec ID- 8 Identifier.

Ole Virginia Hams Amateur Radio Club - Non-profit Amateur Radio club organized for the educational and scientific study of electronics and communication

HamElmer.com - Home of the Radio Teacher Project Website, study guides, class documents and videos to be used by instructors

Amateur Radio Technician Presentations - Power Point format course presentation for the Amateur Radio Technician Exam Licence

The No-Nonsense, No Code Technician Class License Study Guide - Free downloadable study guide by Dan Romanchik KB6NU.

The No-Nonsense, General Class License Study Guide - General Class study guide by Dan Romanchik KB6NU

Amateur Radio Technician Class Licence Guide - Amateur Radio Technician Class License Study Guide For use till June 30, 2010 Question Pool of 393 questions released 6 Feb 2006 and CFR Title 47, Part 97, Amateur Radio Service.

Amateur Radio General Class Licence Guide - Amateur Radio General Class License Study Guide For use till June 30, 2010

Amateur Radio Extra Class Licence - Amateur Radio Amateur Extra Class License Study Guide

RSGB Shop - Training books and study guides for the UK Licence

Preparing for the Extra Class Licence Exam - AD7FO study guide for teachers and students based on the July 1, 2008 Extra Class Question Pool with additional information added to explain the correct answers. Questions were rewritten with the correct answer only, which in the authors view makes it easier when you see the other choices in your exam to identify the correct answer.

SARL - Ham Licence Study Guide - South African Radio League, Radio Amateur Examination Study Guide

The No-Code Technician Class - The No-Nonsense, No-Code Technician Class License Study Guide (for tests given after July 1, 2006) Dan Romanchik KB6NU

XLT Communications - XLT Communications two way radio accessory manufacturer, microphones, headsets, belt clips, earpieces, radio cases

HxPI Radio - First Steps Radio - First steps in science and technology. First steps radio. Color graphics and simple explanations of basic concepts in radio. An introduction to radio communication as a technical hobby. Resources for teaching, training, learning, self-study. Modern morse code. Morse code in the 21st Century. Morse code as a technical hobby. Morse training and practice material. Exercise files to download.

W1TAG WD2XES WE2XGR/3 - Experimental Stations Run by W1TAG WD2XES has been used to study LF antenna design, propagation and communication modes. Signals from WD2XES have been copied as far away as Russia.

WV1C VX-7R Information - This is a little info and some links concerning the Yaesu VX-7R HT, in case you're thinking about getting one.

Amateur Exam Study Program - Free windows program to display all the questions in the General Technician and Extra question pool by N3FJP