ground plan

The G4ZU Spider Beam or Skypper - This 3 elements wire Yagi comes along in a great variety of names. On the 11 meter is calle Skypper due to the manufacturer Alex 1SD019 On Ham bands is called Spider beam or G4ZU.

160 meter linear loaded Inverted L antenna - The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF

The Battle Creek 40 80 160 m antenna - 3 Band vertical Marconi-antenna for the bands 40, 80, 160 meters with a ground net of wires as radials.

EF0610 6 Meters yagi antenna - This is a plan for a 10 elements yagi antenna for 50 mhz

Moxon project for 6 meters - KG4JJH moxon assembly plan for the 50 Mhz in a pdf file

Magnetic longwire balun - Magnetic longwire baluns 1:9 combined with ground, a 1:2 and 1:1 balun connections by ON6MU

Monoband Bazooka antenna - ON4MG bazooka antenna plan in french

The CobWebb Antenna  ^updated - Building the cobWebb antenna. Construction notes and plans to homebrew a multiband antenna by G0MTD

GI4SJQ CobWebb Antenna - GI4SJQ Cobwebb antenna plan with pictures and notes

Mobile 2 meter halo antenna - This HALO design is not ground dependent and can be mounted atop a section of PVC.

Magnetic loop antennas - Drawing and plan for an HF magnetic loop antenna

Moxon for 144 Mhz - A vhf moxon antenna plan

About Antenna Gain - Explanation of antenna basics concepts like antenna gain at marc's technical pages

Simple VHF Gamma Match - Plan of a simple VHF & UHF Gamma match contrstruction

Ham Radio Tower at NØHR - Ham Radio Tower Project at N0HR. Includes site plan, escavation, tower construction, HF antennas, grounding and lightning protection, coax and more.

DX-pedition site planning - Using RadioMobile to evaluate Meteor Scatter DX-pedition sites

TW Antennas - Portable multiband HF antennas. The Traveler provides 5 band, omni-directional communications in an easy-to-assemble package that requires no radial ground system or towers

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.

VOIP applications and Ham Radio - The future of two way radio is digital.

ECHO (AO-51) - SpaceQuest, Ltd. - Spacequest ltd. is a leading developer of advanced micro satellite technology, specializing in the design, development, and testing of space and ground components for operation with low-earth orbiting satellites.

What is NVIS - differences from groundwave propagation

D-RATS  ^updated - D-RATS is a small application designed to provide data communication capabilities with D-STAR radios. It supports text chatting, file transfers, position reporting and mapping, and much more! It is written in Python using GTK to run on multiple platforms.

N7KSB Milliwatt transmitter - N7KSB used this 1/2 watt CW transmitter, with a roof-mounted ground-plane antenna to work all continents and over 30 countries.

Lightning Protection for the Amateur Radio Station - Article on lightning protection for the ham radio station, Lightning Characteristics, Identify What is to be Protected, Establishing a Good Ground, Coax Cable Grounding, Operating Safety by wrblock.

Amateur Radio Grounding to Protect Against Lightning - Protecting the ham radio stations, using a good ground system