case study

Build your own 20m vertical  ^pop - Build your own 50ohm coax fed 20m vertical antenna, so easy a 9 year old can do it, or at least help! And the budget? You may already have the materials on hand, or worse case spend $15 by Andrew Daniel - KI4QFY

PA0NHC 80/40mtrs dipole antenna - Dipole antenna for 80 to 20 mtrs with END-coax feed by PA0NHC

Homebrew Balun Case - Balun case construction, tipically to host toroid cores. Size of case depends on power to handle. By DL5DBM

L Match ATU for QRP - The L match is designed for the matching of random and long wires and should not be mounted in a metallic box/case, i used a small plastic food container which was the most expensive part of the project.

Use of tripods to assemble and balance big antennas - Here is a way to ease assembly and balancing of a large antenna. The elements and boom are assembled separately in most cases. Once they are all together set up 2 tripods in the assembly area and put the boom on them.

Antennas basics  ^pop - An antenna study guide by NZART, cover basic topics like dipoles, wave lenght calculation, baluns, beams, dummy loads, and measurements.

SteppIR Element Length Study - Four EZNEC studies for the 3 element SteppIR for 17 meter

Effects of Very Large Ground Screens - A theoretical and experimental study of the effects of very large ground screens on 20 meter verticals

802.11b Homebrew WiFi Antenna Shootout  ^pop - Guide to homebrew your wifi antenna, using a tin can, in this cases using a pringles can. This antennas are also known as cantenna and let you spread your wifi signal.

CD Case WI-FI antenna - A bi-quad antenna for wireless 2.4 Ghz made using a cd case

ARRLWeb: A Study of Amateur Radio Gender Demographics - A Study of Amateur Radio Gender Demographics. How many ham radio operators in the usa ? Estimated Number of Hams in Each State, by Gender

Mortality statistics in Ham Radio Community - To search for potentially carcinogenic effects of electromagnetic field exposures, the author conducted a population-based study of mortality in US amateur radio operators

FCC Home Study License Training Course - It's a whole new way of preparing for the government FCC License examination. The classroom is your home.

The  New  Zealand  Ham Radio Study Guide - A complete guide to NZ amateur radio examinations. Include usefull technical documentation you can use to prepare yourself to the exams.

Ham Radio Instructor Resources - Whether you're teaching a ham radio class or studying for your license on your own I hope you find this website useful.

Technician Test Self Study Guide - Provided by hamhelmer.com

Ameco - Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.

I6HWD Morse Key Collection - A collection of morse code keys including verticals, semi atumatic, automatic and other accessories

QRP Station in a Bag - QRP Station in a Bag is a complete QRP station in an old laptop PC carrying case (photo). It is a true "Work in Progress" in that wd8rif is constantly changing the contents of the bag as learn what works and what doesn't.

FT-847 on 70 Mhz - A further study of the spurious emissions from an FT-847 on 70MHz

The Heathkit Shop - Here you will find all kinds of information, PCB layouts, hints and kinks and case histories of some of the most popular Heathkit ham gear.

Lowe electronics - UK dealer for pmr audio accessories, batteries and cases, audio accessories and airwave tetra products

Welcome to VIS Amateur Supply - Vis amateur supply, largest independent dealer for several major brands of amateur radio accessories, and publisher of 'vis study cards' and the 'sam amateur radio callsign database'. Coffeeville, AL USA

3 EL Quad Designer - This DOS program will figure the wire sizes for a 3 element quad and will also give you the distance from the center of the boom to drill your holes for mounting the wire on the spider. it also gives you the length of the 4 quarter wave lengths of wire in case you would like to figure the spreader drill points yourself.

Toaster transceiver - A 2W 80 meters transceiver assembled into a toaster case.