5/8 ground plane

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.

Vertical Antenna For 40- 80-160 Meters - The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe

Ground Plane for 7 MHz - How to build a ground plane antenna for the 40 meters band in french

WA0WOX 6 meter Moxon Antenna - Built around a 1/2" pvc frame, Larry's 6 meter moxon antenna is made from #8 aluminum ground wire

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

Horizontal Half-wave Dipole above a Counterpoise - All antennas that are situated close to the ground are affected by that ground to some extent. This article explain effects and benefits of counterpoise.

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

Groundplane Antennas at Various Heights - Mounting on Roof or at Ground Level?

Why Radials ? - Butternut article on radials usage on vertical and ground plane antennas

Horizontal Antennas above Real Ground - Antennas are influenced by the effect of the ground and by the type of conductors from which they are constructed. Effects of various types of grounds on a 1.825 MHz horizontal 0.5 wave dipole

Earth Systems - In order to resonate at a particular frequency, an antenna needs to be at least one half wave length long. Antennas below a 1/2 wave are dependent on a ground system for resonance as well.

Alfa Tango Netherlands - Website of the Dutch AT group

Hi-Line Utility Supply - Furnishing Quality Tools & Equipment For Construction and Maintenance of Above and Underground installations.

WXtrack - David taylor's weather satellite programs - orbit and ground track prediction

The Ground Wave - About ground wave, article by moonraker.com.aut

What is NVIS - differences from groundwave propagation

D-RATS - 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.

Antenna Selector - This project was built to be able to experience with more of an antenna and also in turn to be able to have a system that offers security to the receivers, carrying out the discharge to ground of the antennas

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.

Efficient ground system - Article shows how to develop a good external ground system to complete your station’s protection.

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

Ligthning: Protecting Towers - An interconnected concrete tower base can help the tower ground system.