The Antennas Index
A Brief Listing of Antenna Links...
This page presents a listing of articles about
building antennas, or articles that relate to some aspect of antenna
design or theory in general.
It is meant to give you a quick overview of what is available on this
site. It leans toward the smaller, VHF antennas, but also features loop
antennas which can vary greatly in bandwidth and, hence, size...
The emphasis here is on building since most hams still enjoy designing,
constructing, and installing their own antenna systems. Antenna projects
remain one of the last do-it-yourself areas under the topic
homebrewing in Amateur Radio...
Descriptions of Popular Packet Antennas
Do you need a "special"
antenna for packet radio? This brief article lists
a few of the more popular and effective antennas successfully used by
packeteers, such as: the vertical, J-pole, VHF beam, and even the discone.
Running an efficient antenna can also allow lower power operations
which can save you money in the long run...
If you've been thinking about
building or experimenting with VHF or HF loop
antennas, then this handy calculator will produce computed results in either
feet or meters for several different shapes, notably: a square, triangle, circle,
or rectangle. The page also contains practical construction hints and tips
for building this single turn, one wave length antenna.
How to Build a VHF J-Pole Antenna
A J-Pole can be a very
challenging antenna to build. This article shows
how to build a PVC pipe-enclosed J-Pole using medium-gauge solid wire for the antenna
elements instead of copper pipe as is usually done, thus reducing construction
costs. If you are a first-time, or even an experienced, builder, you'll find this
article both interesting and useful. (TOC included.)
Discussions and Observations about the Magnetic Loop Antenna
This is a general discusion
about the single turn, one wave length, loop
antenna. A comprehensive approach is taken which attemps to cover all the major
characteristics of this unique antenna. Particular attention is paid to issues
of polarity and transmission patterns. Practical examples are given where
applicable. (TOC included.)
Building a VHF Quad Antenna
This article describes how to build a very
inexpensive quad antenna,
especially if you have a "junk" box full of spare parts. The prototype was made of
wood and uses a uniquely adjustable support system, which allows for easy put-up
and strike-down, making for a reliable emergency portable unit. Several calculators
are available to determine correct element sizes.
Why Build Your Own: Homebrewing
Is homebrewing for you? This short
article presents a general strategy
for any construction project from antennas to power supplies,
from circuit-boarding to kits. It mainly consists of hints and tips about how to
approach and manage a homebrew construction project which will result in a
useful addition to your shack.
(Courtesy KBNorton Computer Services)