building rotors

20m 3-Element Yagi Plans  ^updated - Plans for building your own 3-element beam for use on 20m at DX Engineering

The Coax Balun - Building balus with coax cables

Modern Beverage Receiving Antenna - A helpful guide to building your own beverage-type low noise receiving antenna for broadband use. Easy, do-it-yourself suggestions to optimize directional performance, even if you lack a farm to put it on.

EH-Antenne - Building EH Antennas at Gemran radio club station house, by Matthias DH4FAW

Building tips - Homebrewing antennas with parts which you can buy from local shops and stores.

Easy Jpole Building - Easy home brew 2 meter jpole antenna build - under 20 bucks - Hits repeaters 45 miles away. Parts used bought at home depot build time 1 hour.

G4DCH Mobile Antennas - Designing and Building HF Antennas for mobile use

WB2HOL Foxhunting beam - Building the WB2HOL foxhunting beam antenna

Antena Wind Load - Information about the wind load area of many antenna manufacturers like steppir, moseley, maco, klm, cushcraft, hy-gain, avanti, Jo gunn, Wilson and winegard

Tilt-over antenna mast - This isn’t a set of step-by-step instructions, but my info might give you some ideas for building your own antenna support.

Tower building mistakes - The 10 most common tower building mistakes by K7LXC

How to extend your Wireless Network - How to extend your Wireless Network by building a 2.4 gHz wifi cantenna

Piatt County Ham Radio - Picorams operated this Field Day from the ESDA building using call sign K9IYP operating class 2 Foxtrot

The Austin QRP Club - The A QRP Club is a small group of Amateur Radio enthusiasts who enjoy building, operating and (mostly) talking about Low Power radio communications, equipment and systems.

W1XM MIT UHF Repeater Association - The MIT UHF Repeater Association maintains the W1XM Repeater which is located on the top of the Green Building.

EGIS Rotors - Antenna positioners and rotators manufacturer based in Germany

MegaPhase - MegaPhase designs, manufactures and sells coaxial cable assemblies to OEMs building advanced microwave and optical electronic systems, products include test cables, test adapters, flexible and semi-rigid cables used to connect system components inside a system, and coaxial connectors.

Wulffert Technology LLC - Tower Light Monitor, Controller Alarm Systems for buildings, towers, antennas and airports

New England QRP Club - The New England QRP Club is where "The excitement is building...."

Building a DSP unit for Yaesu FT-817 - Installing a DSP Unit into the FT-817

Homebrew solar panel - Homebrew Solar Panel 60Watts. Building a homemade solar panel from solar cells that would have otherwise been thrown out.

Frequency Counter - Timer - Logic Tester - Frequency counter project. It includes quite a number of useful testing features which were very useful when building other projects

MFJ Cub QRP transceiver kit - Building the MFJ Cub QRP transceiver kit for 20 meters band by G4ILO

How to build a VHF repeater - Topic on eham forum on how to start building a VHF ham radio repeater.

A Wifi (V)SWR Meter - When building antennas for the Wifi band , a need for an easy way to check the antennas arise. This is a project for a 2.4 GHz band SWR Meter