What is HAM Radio

Category: Learn about the Hobby Published: Thursday, 18 February 2016 Written by DCARC DCARC

A Proud 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.

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.

What is 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.

Why are they called "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.

HAMS need Licenses?

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.

Which License is for Me?

Over the years, five basic license classes have evolved. The higher the class license you have, the more privileges and modes of operation you get. But each higher class license requires progressively more knowledge of technology and rules and regulations. So, you can learn the basics or you can become an expert and still enjoy the hobby.

Technician Class License

Hams enter the hobby as Technicians by passing a 35-question multiple-choice examination. No Morse code test is required. The exam covers basic regulations, operating practices, and electronics theory, with a focus on VHF and UHF applications.

Technician Class operators are authorized to use all amateur VHF and UHF frequencies (all frequencies above 50 MHz). Technicians who pass a 5 WPM Morse code examination are entitled to limited power outputs on certain HF frequencies. "Technicians with HF" may operate on the 80, 40, and 15 meter bands using CW, and on the 10 meter band using CW, voice, and digital modes.

 

General Class License

The General Class is a giant step up in operating privileges. The high-power HF privileges granted to General licensees allow for cross-country and worldwide communication. Some people prefer to earn the General Class license as their first ticket, so they may operate on HF right away. 

Technicians may upgrade to General Class by passing a 35-question multiple-choice examination. The written exam covers intermediate regulations, operating practices, and electronics theory, with a focus on HF applications. 

In addition to the Technician privileges, General Class operators are authorized to operate on any frequency in the 160, 30, 17, 12, and 10 meter bands. They may also use significant segments of the 80, 40, 20, and 15 meter bands.

 

Extra Class License

The HF bands can be awfully crowded, particularly at the top of the solar cycle. Once one earns HF privileges, one may quickly yearn for more room. The Extra Class license is the answer. 

General licensees may upgrade to Extra Class by passing a 50-question multiple-choice examination. In addition to some of the more obscure regulations, the test covers specialized operating practices, advanced electronics theory, and radio equipment design. Frankly, the test is very difficult, but others have passed it, and you can too. 

Extra Class licensees are authorized to operate on all frequencies allocated to the Amateur Service.

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.   You might consider coming to a DCARC meeting to meet some friendly hams!  Hams take pride in their ability to "Elmer" (teach) newcomers the ropes to get them started in the hobby.  See the DCARC Education pages.  To find out how just how easy it is to get started, please contact one of the DCARC Officers!

HAMS in Action

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. And at the scene of a traffic accident on a Chicago freeway, a ham calls for help by using a pocket-sized hand-held radio.

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.

 

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