01.pdf

(3401 KB) Pobierz
Contents
1.5.2 Chasing DX
1.5.3 Operating Awards
1.5.4 Satellite Communication
1.5.5 QRP: Low-Power Operating
1.5.6 Operating Mobile
1.5.7 VHF, UHF and Microwave Operating
1.5.8 Vintage Radio
1.5.9 Radio Direction Finding (DF)
1.6 Public Service
1.6.1 Emergency Communication
1.6.2 Emergency Communication Organizations
1.6.3 Public Service and Traffic Nets
1.7 Ham Radio in the Classroom
1.7.1 ARRL Amateur Radio Education &
Technology Program
1.8 Resources
1.1 Do-It-Yourself Wireless
1.1.1 Something for Everyone
1.1.2 What’s in it for Me?
1.2 Joining the Ham Radio Community
1.2.1 Getting Started
1.2.2 Study Guides
1.2.3 Taking the Test
1.2.4 Your “Elmer”
1.2.5 Your Ham Radio Identity
1.3 Assembling Your Station
1.3.1 How Much Will It Cost?
1.3.2 Computers and Ham Radio
1.4 Hello, World! — Getting on the Air
1.4.1 Voice Modes
1.4.2 Morse Code
1.4.3 FM Repeaters
1.4.4 Digital Modes
1.4.5 Image Communication
1.5 Your Ham Radio “Lifestyle”
1.5.1 Ham Radio Contesting —
Radiosport
752936252.008.png
Chapter 1
What is Amateur
(Ham) Radio?
1.1 Do-It-Yourself Wireless
Ever evolving, Amateur Radio has always been what its participants bring to it and what
they make of it. “Make” is a key word in ham radio, since many enthusiasts still enjoy building
their own radio communication equipment and electronics. It is in such “hands-on” activities
that this Handbook often comes into play.
Hams also “make” contact with each other using equipment they’ve bought or built, or a
combination of the two, over a wide range of the radio spectrum, without the need for any
external infrastructure — such as the wired or cellular telephone network or the Internet.
The methods hams use to keep in touch range from the venerable Morse code — no longer
a licensing requirement, by the way — to modern digital modes and television. The marriage
between Amateur Radio and computer technology grows stronger by the day as hams invent
ever more creative ways to make computers and the Internet essential station components.
The wonder of software defined radio (SDR) techniques has even made it possible to cre-
ate virtual radio communication gear. SDRs require a minimum of physical components;
sophisticated computer software does the heavy lifting!
For more than a century, a
growing group of federally licensed
radio hobbyists known as Amateur
Radio — or “ham radio” —
operators has had a front-row
seat as radio and electronics have
broadened our horizons and touch
virtually all of our lives. Hams
pioneered personal communica-
tion, even in the days before the
telephone and household electric-
ity were commonplace and the
Internet not yet conceived. The
word “radio” — or “wireless” — still
evokes awe.
Today we enjoy wireless ameni-
ties that range from the ubiquitous
cell phone to diminutive “netbook”
PCs than can go just about any-
where. Personal communication is
the goal. Wireless radiocommuni-
cation lets us reach out via voice or
text message or tells us — literally
— how to navigate in strange sur-
roundings. Printers and scanners
now can communicate wirelessly
with your PC. Radio signals can
even automatically set your clock
to the precise time. In this chapter,
Rick Lindquist, WW3DE, provides
a broad overview of Amateur
Radio activities and licensing
requirements.
1.1.1 Something for Everyone
Amateur Radio offers such a wide range of activities that everyone can find a favorite niche.
As one of the few truly international hobbies , ham radio offers the ability to communicate with
other similarly licensed aficionados all over the world. The competition of “radiosport” — just
to pick one activity many hams enjoy — helps operators to improve their skills and stations.
Further, ham radio offers opportunities to serve the public by supporting communication in
disasters and emergencies, and it’s a platform for scientific experimentation.
Ham radio has extended its horizon into space. The International Space Station boasts
a ham radio station, and most ISS crew members are Amateur Radio licensees. Thanks to
the Amateur Radio on the International Space Station (ARISS) program, properly equipped
hams can talk directly with NASA astronauts in space. Hams contact each other through
Earth-orbiting satellites designed and built by other radio amateurs, and they even bounce
radio signals off the moon and to other hams back on Earth.
Hams talk with one another from cars, while hiking or biking in the mountains, from remote
campsites or while boating. Through a plethora of activities, hams learn a lot, establish lifelong
friendships and, perhaps most important, have a lot of fun. Along the way, radio amateurs
often contribute some of the genius behind the latest technological innovations.
In all likelihood, you’re already a ham or at least have experimented with radio and electron-
ics yourself and are thinking about becoming one. This Handbook is an invaluable resource
that reveals and explains the “mysteries” governing electronics in general and in radio — or
wireless — communication in particular, especially as it pertains to Amateur Radio.
HAMS ARE EVERYWHERE!
Amateur Radio is open and accessible to everyone. Hams are mothers, fathers, sons and
daughters of all ages, ethnic backgrounds and physical abilities who are part of a unique
worldwide community of licensed radio hobbyists. These individuals come from all walks
of life. Some are even well-known celebrities. They have one thing in common, however.
What is Amateur (Ham) Radio?
1.1
752936252.009.png 752936252.010.png 752936252.011.png
Fig 1.2 — Ann Santos, WA1S, enjoys traveling to remote
locations and bringing her radio equipment along.
( AD6E photo )
Fig 1.1 — Scott, K7ZO, and Joe, NK7U,
work together to make contacts during
an on-air contest. ( NØAX photo )
Fig 1.3 — Dave Pulver,
KG4CZV, was among
those ready to support
emergency radio
trafic as Tropical
Storm Ernesto
approached North
Carolina in 2006.
Fig 1.4 — German radio amateur Peter Ernst, DL4SZB, hunts
DX from his well-equipped station in Goldberg. ( WW3DE photo )
Fig 1.5 — Amateur Radio as a social activity: Nancy Rabel Hall,
KC4IYD, and her daughter Carol meet up with Joe Phillips,
K8QOE (SK), at a ham radio convention. ( N1BKE photo )
1.2
Chapter 1
752936252.001.png 752936252.002.png 752936252.003.png 752936252.004.png 752936252.005.png
All find joy and excitement by experiencing
radio communication and electronics on a
very personal level.
How can you spot a radio amateur? Some-
times it’s easy. The driver of that car in front
of you sporting an “odd-looking” antenna
may be a ham who’s equipped his vehicle for
mobile operation. Your neighbor on the next
block with the wires strung between trees or,
perhaps, a tower supporting what looks like
a very large television antenna probably is
one too.
Modern technology continues to make
ham radio more accessible to all, including
those on a tight budget or confronting physi-
cal challenges. People who are not as mobile
as they’d like to be find the world of Amateur
Radio a rewarding place to make friends —
on the next block or around the globe. It’s
possible for a ham to control a transmitting
and receiving station via the Internet using a
laptop computer, even if that station is thou-
sands of miles distant.
For many radio amateurs, a relaxing eve-
ning at home is having a two-way radio con-
versation with a friend in Frankfort, Kentucky
— or even Frankfurt, Germany. Unlike any
other hobby, Amateur Radio recognizes no
international or political boundaries, and it
brings the world together as good friends.
Hams at the Forefront
Over the years, the military and the electronics industry have often drawn on the
ingenuity of radio amateurs to improve designs or solve problems. Hams provided
the keystone for the development of modern military communication equipment, for
example. In the 1950s, the Air Force needed to convert its long-range communication
from Morse code to voice, and jet bombers had no room for skilled radio operators.
At the time, hams already were experimenting with and discovering the advantages
of single sideband (SSB) voice equipment. With SSB, hams were greatly extending
the distances they could transmit.
Air Force Generals Curtis LeMay and Francis “Butch” Griswold, both radio ama-
teurs, hatched an experiment that used ham radio equipment at the Strategic Air
Command headquarters. Using an SSB station in an aircraft lying around the world,
LeMay and Griswold were able to stay in touch with Offutt Air Force Base in Nebras-
ka from around the globe. The easy modiication of this ham radio equipment to meet
military requirements saved the government millions of dollars in research costs.
More recent technological experimentation has focused on such techniques as
software deined radio (SDR). This amazing approach enables electronic circuit
designers to employ software to replace more costly — and bulkier — hardware
components. It’s no coincidence or surprise that radio amateurs have been among
those investigators doing the ground-level research and experimentation to bring this
technology from the laboratory to the marketplace. Transceivers built on the SDR
model now are making inroads within the Amateur Radio community and represent
the likely wave of the future in equipment design.
sive handheld transceivers or even home-
made gear. In “Hamspeak,” a two-way, on-
the-air communication is known as a “QSO”
— an old radiotelegraph, or Morse code, ab-
breviation often pronounced “CUE-so.”
It’s nearly as simple for groups of hams
with common interests to gather on the
airwaves to share their thoughts and even
pictures. These on-the-air get-togethers are
called “nets” or “roundtables,” depending on
their formality. When hams meet and engage
in extended on-the-air conversations, they
call it “ragchewing.”
Nets often provide an on-the-air venue
to find other hams with similar interests
both inside and outside of Amateur Radio.
Topics may be as diverse as vintage radio,
chess, gardening, rock climbing, railroads,
computer programming, teaching or an in-
terest in certain types of radio equipment.
Religious groups and scattered friends and
families may also organize nets. Nets form
when like-minded hams gather on the air on
a regular schedule. You can find your special
interest in The ARRL Net Directory on the
ARRLWeb .
With your ham radio license in hand, you
can meet new friends, win awards, exchange
“QSL cards” to confirm radio contacts by
mail, challenge yourself and others, learn
and educate, contribute to your community,
travel, generate international goodwill and
continue a century-old wireless communica-
tion tradition. Let’s take a closer look.
1.1.2 What’s in it for Me?
As a community of communities, Ama-
teur Radio can be whatever you want it to
be. Whether you are looking for relaxation,
excitement, enjoyment or a way to stretch
your mental (and physical) horizons, Ama-
teur Radio can provide it — even for those
with time and money constraints. However it
happens, communication between or among
individuals is at the core of nearly all ham
radio activities. In its most basic form, ham
radio is two people saying “Hello!” to each
other over the air, perhaps using inexpen-
1.2 Joining the Ham Radio Community
Although you no longer have to learn the
Morse code to become an Amateur Radio
licensee, you must have a license granted by
the Federal Communications Commission
(FCC) to operate an Amateur Radio station
in the United States, in any of its territories
and possessions or from any vessel or aircraft
registered in the US. There is no age require-
ment, nor do you have to be a citizen to obtain
a license a US Amateur Radio license. Chil-
dren as young as four and five have passed
ham radio exams!
In the US, there are three classes — or
levels — of Amateur Radio license. From the
easiest to the most difficult, they are Techni-
cian, General and Amateur Extra class. You
must only take and pass a written examina-
tion for each license. The higher you climb
up the ladder, the more challenging the test
and the more generous the privileges the FCC
grants. To reach the top — Amateur Extra —
you must pass the examinations for all three
license classes.
ham license is sometimes called. Technicians
enjoy a wide, but somewhat limited, range of
voice and digital radio operating privileges.
These include access to some “high frequen-
cy” (HF) or short-wave spectrum (hams have
access to HF “bands” or frequency segments
in the range from 1.8 MHz to 29.7 MHz),
where most direct international communica-
tion happens. Most Technician privileges are
in the VHF-UHF and microwave spectrum,
however. These allow operation on widely
available FM voice repeaters. A repeater
greatly extends the communication range of
low-power, handheld transceivers or mobile
1.2.1 Getting Started
Most people start out in Amateur Radio by
getting a Technician license or “ticket,” as a
What is Amateur (Ham) Radio?
1.3
752936252.006.png
munication using voice, digital, image and
television techniques.
Reaching the top rung of the Amateur Ra-
dio ladder — Amateur Extra class — means
passing a more-demanding 50-question ex-
amination. Amateur Extra licensees enjoy
privileges on all frequency bands and modes
available to hams. The exam may be challeng-
ing, but many hams consider it well worth
the effort!
Ham Radio’s Rules of the Airwaves
International and national radio regulations govern the operational and technical
standards of all radio stations. The International Telecommunication Union (ITU)
governs telecommunication on the international level and broadly deines radio
services through the international Radio Regulations . In the US, the Federal Com-
munication Commission (FCC) is the federal agency that administers and oversees
the operation of nongovernmental and nonmilitary stations — including Amateur
Radio. Title 47 of the US Code of Federal Regulations governs telecommunication.
The Amateur Radio Service is governed by Part 97.
Experimentation has always been the backbone of Amateur Radio and the
Amateur Service rules provide a framework within which amateurs have wide
latitude to experiment in accordance with the “basis and purpose” of the service.
The rules should be viewed as vehicles to promote healthy activity and growth, not
as constraints that lead to stagnation. The FCC’s rules governing Amateur Radio
recognize these ive aspects, paraphrased below, as the basis and purpose of the
Amateur Service.
• Amateur Radio’s value to the public, particularly with respect to providing
emergency communication support
• Amateur Radio’s proven ability to contribute to the advancement of the radio
art
• Encouraging and improving the Amateur Service through rules that help ad-
vance communication and technical skills
• Maintaining and expanding the Amateur Service as a source of trained opera-
tors, technicians and electronics experts
• Continuing and extending the radio amateur’s unique ability to enhance inter-
national goodwill
1.2.2 Study Guides
You can prepare for the exam on your
own, with a group of friends or by taking a
class sponsored by a ham radio club in your
area. ARRL has materials and lesson plans
for hams who wish to teach Amateur Radio
licensing classes for newcomers. Anyone
can set up license classes. Many Amateur
Radio clubs hold periodic classes, usually
for the Technician license. The ARRL sup-
ports Registered Amateur Radio Instructors,
but registration is not necessary to conduct a
class. Check the ARRL Web site, www.arrl.
org , for classes, clubs or volunteer examiners
(VEs) in your area (more on VEs below).
Help is available at every step. The ARRL
publishes study materials for all license
classes. Visit the ARRL Web site or contact
ARRL’s New Ham Desk for more informa-
tion on getting started. The Resources section
at the end of this chapter includes telephone
number and address information. The ARRL
can help you find ham radio clubs in your area
as well as ARRL-registered instructors and
local VE teams. A lot more information is on
the ARRL Web site, including frequencies
hams can use, popular operating activities and
how to order the latest ARRL study guide.
For newcomers seeking to obtain a Techni-
cian license, The ARRL Ham Radio License
Manual includes the complete, up-to-date
question pool with the correct answers and
clear explanations. The manual assumes no
prior electronics background. It delves into
the details behind the questions and answers,
so you will understand the material, rather
than simply memorize the correct answers.
If you already have some electronics back-
ground or just want brief explanations of the
material, you might decide that ARRL’s Tech
Q&A manual is a more appropriate choice. It
also includes the entire Technician question
pool to help you prepare.
When you are ready to upgrade to a Gen-
eral class license, The ARRL General Class
License Manual or ARRL’s General Q&A
can help you prepare. In like fashion, The
ARRL Extra Class License Manual and
ARRL’s Extra Q&A will guide your study
efforts for the Amateur Extra class license.
Check the ARRL Web site for detailed infor-
mation on these and other options to study
for your license.
The Amateur Radio
Service rules, Part 97,
are in six sections: Gen-
eral Provisions, Station
Operation Standards,
Special Operations,
Technical Standards,
Providing Emergency
Communication and
Qualifying Examination
Systems. Part 97 is
available in its entirety
on the ARRL and FCC
Web sites (see the
Resources section at
the end of this chapter
for further information).
Fig 1.6 — ARRL’s
Ham Radio License
Manual contains all
the information you
need to study for your
Technician license.
stations too far apart to transmit to each other
directly. The “Tech ticket” is a great introduc-
tion to the fun and excitement of ham radio
and to the ways of the hobby.
The sole requirement for the Technician
license is passing a 35-question written
exam. It covers FCC rules and regulations
that govern the airways, courteous operating
procedures and techniques and some basic
electronics. The privileges granted give Tech-
nicians plenty of room to explore and activi-
ties to try. For some, the Technician is the only
ham license they’ll ever want or need.
By upgrading to General class, a Techni-
cian licensee can earn additional operating
privileges, such as access to all of the Ama-
teur Radio HF bands. Upgrading to General
entails passing another 35-question written
exam. In addition to Technician privileges,
General-class hams enjoy worldwide com-
1.4
Chapter 1
752936252.007.png
Zgłoś jeśli naruszono regulamin