About the Amateur Radio
A retired military officer in North Carolina makes friends over the
radio with a ham in Lithuania. An Ohio teenager uses her computer to
upload a chess move to an orbiting space satellite, where it's retrieved
by a fellow chess enthusiast in Japan. An aircraft engineer in Florida
participating in a "DX contest" swaps call signs with hams in 100 countries
in a weekend. In California, volunteers save lives as part of their involvement
in an emergency communications net. At the scene of a traffic accident
on a Chicago freeway, a ham calls for help by using a pocket-sized hand-held
radio. A Georgia Tech student uses a car-mounted radio to alert the rest
of Atlanta to a speed trap on I-75.
This unique mix of fun, public service and convenience is the distinguishing
characteristic of the hobby called Amateur Radio. Although hams get involved
in Amateur Radio for many reasons, they all have in common a basic knowledge
of radio technology, regulations and operating principles, demonstrated
by passing an examination for a license to operate on radio frequencies
known as the "Amateur Bands." These frequencies are reserved by the Federal
Communications Commission for use by hams at intervals from just above
the AM broadcast band all the way up into extremely high microwave frequencies.
But Isn't That Like CB?
Amateur radio is different from CB radio. Amateur radio operators hold
licenses from the FCC, and operate by clearly defined set of rules. We
always give our callsigns when we transmit, so there is never any doubt
as to who is speaking, and we refrain from using foul language on the
air. In general, hams are polite and friendly, in sharp contrast to some
of the activity on CB. And since amateur radio operators must pass exams
on radio theory, interference avoidance, and RF safety, we are allowed
to use much more transmitter power than CBers, build and modify our own
equipment without consulting the FCC, and transmit on a huge range of
frequencies.
Who's The Typical Ham?
Amateur radio operators come from all walks of life -- movie stars,
missionaries, doctors, students, politicians, truck drivers and just
plain folks. They are all ages, sexes, income levels and nationalities.
But whether they prefer Morse Code on an old brass telegraph key through
a low power transmitter, voice communication on a hand-held radio or
computer messages transmitted through satellites, they all have an interest
in what's happening in the world, and they use radio to reach out.
What's The Appeal Of Ham Radio?
Some hams are attracted by the ability to communicate across the country,
around the globe, even with astronauts on space missions. Others build
and experiment with electronics. Computer hobbyists find packet radio
to be a low-cost way to expand their ability to communicate. Those with
a competitive streak enjoy DX contests, where the object is to see how
many distant locations they can contact. Some like the convenience of
a technology that gives them portable communication. Others use it to
open the door to new friendships over the air or through participation
in one of more than 2000 Amateur Radio clubs throughout the country.
A Noble History
Nobody knows when Amateur Radio operators were first called "hams," but
we do know that Amateur Radio is as old as the history of radio itself.
Not long after Guglielmo Marconi, an Italian experimenter, transmitted
the Morse Code letter "s" from Newfoundland to England in 1901, amateur
experimenters throughout the world were trying out the capabilities of
the first "spark gap" transmitters. In 1912 Congress passed the first
laws regulating radio transmissions in the U.S. By 1914, Amateur experimenters
were communicating nation-wide, and setting up a system to relay messages
from coast to coast (whence the name "American Radio Relay League"!).
In 1927, the FCC was created by Congress and specific frequencies were
assigned for various uses, including ham bands.
Why A License
Although the main purpose of Amateur Radio is fun, it is called the "Amateur
Radio Service" because it also has a serious face. The FCC created this "Service" to
fill the need for a pool of experts who could provide backup emergency
communications. In addition, the FCC acknowledged the ability of the
hobby to advance the communication and technical skills of radio, and
to enhance international goodwill. This philosophy has paid off. Countless
lives have been saved where skilled hobbyists act as emergency communicators
to render aid, whether it's an earthquake in Italy, a flood in India
or a hurricane in the U.S.
What's The Right License For Me?
Over the years, three basic license classes have evolved. The higher
the class license you have, the more privileges you get. But each higher
class license requires progressively more knowledge of technology, rules
and regulations, as well as Morse Code proficiency. So, you can learn
the basics or you can become an expert and still enjoy the hobby.
Today, the "entry level" license for Radio Amateurs is the easy-to-earn "code
free" or Technician Class license, which requires a short 35-question
quiz on radio theory, regulations and operations. The Technician class
license gives access to frequencies in the VHF and UHF bands, all modes
of operation, and access to Amateur Radio Orbiting Satellites (OSCARS).
Technician licensees may also pass an optional Morse Code test to earn
limited High Frequency (HF) privileges. Most Georgia Tech exams are
a lot harder than the Technician exam. By all means, give it a shot! See
our calendar for upcoming license exam dates.
The General class license grants access to most HF frequency ranges,
which allow direct communication with the other side of the world. HF
communication is a challenge to master, but it's also a lot of fun. The
General license requires a fairly straightforward multiple choice exam
and a passing score on a 5 word per minute Morse code exam. (Don't
let Morse code get in your way. It's not as hard to learn as it might
seem. And once you pass that test, you'll never have to take another.)
Finally, the Amateur Extra license allows full access to all amateur
radio frequencies. If you already have a General class license, Extra
requires just one more written exam. The Extra-only frequency ranges
are less congested than the others, and are a great place to experiment
with low power communication without getting drowned out by high power
stations.
Many amateur radio operators go all the way to the Extra class license
eventually, but Technician is a great place to start, and allows you
to get a feel for amateur radio without too much of a time investment.
You can take license exams whenever you feel you are ready for the next
level. Our club holds official FCC exam sessions on campus once a month.
Why Do They Call Themselves "Hams?"
Although the origin of the word "ham" is obscure, every ham has his
or her own pet theory. One holds that early Amateurs were called hams
because they liked to "perform" on the air, as in "hamming it up." Another
proposes that the name came from the "ham-fisted" way some early Amateurs
handled their code keys. The easiest to accept is that "ham" is a contraction
of "Am," as in Amateur. One of the most exotic holds that "ham" is an
acronym from the initials of three college students who were among the
first Radio Amateurs.
What Are the Amateur Radio Bands?
Look at the dial on a old AM radio and you'll see frequencies marked
from 535 to 1605 kilohertz. Imagine that band extended out many thousands
of kilohertz, and you'll have some idea of how much additional radio
spectrum is available for amateur, government and commercial radio bands.
It is here you'll find aircraft, ship, fire and police communication,
as well as the so-called "shortwave" stations, which are worldwide commercial
and government broadcast stations from the U.S. and overseas. Amateurs
are allocated nine basic "bands" (i.e. groups of frequencies) in the
high frequency range between 1800 and 29,700 kilohertz, and another seven
bands in the Very High Frequency (VHF) and Ultra High Frequency (UHF)
ranges. Even though many Amateur Radio conversations may be heard around
the world, given the right frequency and propagation conditions, Amateur
Radio is basically two-way communication.
Where Do I Get More Information?
The three best ways to learn about Amateur Radio are to listen to hams
on the Amateur bands, read about Amateur Radio in the numerous books
and magazines devoted to the subject and, best of all, talk to hams face-to-
face. Hams take pride in their ability to "Elmer" (teach) newcomers the
ropes to get them started in the hobby. Most will welcome your interest.
To tind out more and get started with amateur radio, contact
us, or better yet come to our monthly meeting.