20 dB for $48.60

This is from one of my favorite Ham technical writers, Steven Katz, WB2WIK/6. I find his comments informative, accurate, and entertaining. This article he wrote for eHam.net does a very good job of describing the benefit of radials on a vertical antenna system.

20 dB for $48.60
from Steve Katz, WB2WIK on January 18, 2009
read the whole thing here: http://www.eham.net/articles/20850

Overview

Antennas, antennas, antennas!

They are our transducers to the ether, and are what make our wireless equipment work. Yet, for various reasons, many hams seem unconcerned about them.

Deed restrictions (CC&Rs) are probably a leading cause of hams having poor antennas, although plain old apathy seems at least as big a problem. Budget should never be the problem, since so many excellent antennas are available as used items either very cheaply or free, and of course some great designs can be homebrewed for almost nothing. And we find that often times, the ham with no antenna had enough of a budget to buy a $1000 radio. Hmph.

This subject is too vast to address in a brief article, so I'll focus on a single, popular design: HF Vertical Antennas. Even more specifically, inexpensive HF vertical antennas which are typically base-fed, trapped or loaded designs requiring a counterpoise or image plane in order to function properly. Among all the commercial designs on the market, the Hustler 4BTV-5BTV-6BTV are likely the best bang for the buck products currently out there, although Butternut HF6V-HF9V, Hy-Gain 12AVQ-14AVQ-18VS and DX88, and others can be good deals, too.

The products listed, and other popular commercial models, have one thing in common: They are not ground-independent, and have no factory supplied counterpoise. They are trapped or loaded, base-fed antennas that not only work better with radials, they work only with radials.

Any antenna can make contacts. Good ones make stronger, longer-distance contacts more reliably. With a 100W transmitter and a good antenna, many of the signal reports you receive should be `Wow, great signal - very, very strong, S9+ here.' If you don't commonly get such reports, you're definitely missing out on a lot of stuff that could be worked, but you're not going to hear it, and it's not going to hear you, either. A simple, inexpensive vertical antenna can produce such reports, repeatedly. The difference between a vertical that does get the `you're blowing me out of my chair' reports and one that doesn't is simple deployment.