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《短波手册》英文版,比较全面介绍了短波通信
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2023-11-28
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《短波手册》英文版,比较全面介绍了短波通信
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Scan and ocr by SW77
2
Contents
Preface 5
Introduction 6
1 Introduction to Shortwave Listening 7
Why "shortwave"?
What SWLs hear
Foreign station programming
SWLs and what they can do
Getting started
2 Terminology 13
Frequency
Wavelength
DX
UTC
BCE, CW, ID, IS, and IRC
Q signals
Abbreviations
Equipment terms
3 Radio Receivers 17
Shortwave myths and misconceptions
Old radio receivers
Purchasing a new receiver
What are all those knobs for?
So now you have it home!
Receiver accessories
4 Antennas 25
Antenna principles
Longwire antennas
Dipole antennas
Variations on the dipole
Beam antennas
Indoor antennas
Filters
5 Frequencies 30
Standard broadcast band (540 to 1600 kHz)
Longwave band (below 500 kHz)
Shortwave bands (1.6-30 MHz)
6 Radio Waves and Propagation 36
How radio waves travel
Factors affecting propagation
Scan and ocr by SW77
3
7 Reception by General Contimental Areas and Frequency 41
Longwave frequencies
Broadcast band DXing
The tropical bands
DXing North America
DXing Latin America
Central America
South America
The Caribbean
DXing Europe
DXing Africa
DXing the Near East and Middle East
DXing Asia, Australia, and Pacific Island areas
DXing harmonics
8 Specialty SWL 79
Airborne transmissions
Espionage-The numbers stations
Pirate radio
RTTY and teletype broadcasts
9 Amateur Radio 81
Functions of ham radio
Getting into ham radio
Ham radio and the SWL
Callsigns
Q code
Signal reporting codes
HamDX
Sending QSL reports
Amateur license classes
Ham operating privileges
Exam preparation
Amateur equipment
Amateur bands
FM and repeater operation
10 Monitoring the VHF and UHF Bands 90
The VHF and UHF bands
Monitoring and the law
Equipment for VHF and UHF
Listening activity
11 FM DXing 92
FM skip
FM DX equipment
Sources of station information
12 TV DXing 98
Sporadic E skip
Scan and ocr by SW77
4
Tropo reception
Meteor scatter
F2 skip
Auroral reception
Transequatorial scatter
TV DX equipment
13 Utility Stations 103
Maritime stations
Aeronautical stations
Fixed stations
Reception reports and QSLs
Utility references
14 Logbooks 109
FCC rules
Log contents
Log forms
15 Reporting and Verifications 112
Report preparation
Report data
Codes
Postage
Time
Tape recorded reports
Foreign language reports
16 Time and Standard Frequency Stations 118
Time-and-frequency station service
National Bureau of Standards Frequency and Broadcast Service
International time stations
17 Card Swapping 120
Station cards
Use of SWL cards
Card design
18 Radio Clubs, Periodicals, and Other Information Sources 122
Club associations
ANARC services, committees, and publications
History of a shortwave club
Periodicals
DX programs
The NASWA awards program
DX century awards
Continental awards
Station awards
Individual country awards
Regional awards
Specialty awards
Scan and ocr by SW77
5
Preface
Approximately twenty million short-wave receivers have been sold in the United States over the
past decade, yet for many people shortwave is an arcane art and its listeners are recluses chained by
headphones to complex receivers only slightly smaller than a refrigerator. Most persons who are not
already shortwave listeners would probably be surprised to learn that English broadcasts and music
direct from England, Germany, Spain, Australia, and a host of other nations can be received on sets
small enough to fit in an office drawer and not much harder to operate than a digital FM radio.
One of the great barriers to wider use of shortwave has been this lack of understanding. The
primary object of this Handbook, ever since Hank Bennett's first edition in 1974, has been to break
down that barrier by showing that enjoyable shortwave listening can easily be achieved, and moreover
that the more difficult shortwave feats are based upon fairly simple principles. A shortwave listener
can spend months of planning and waiting for a weak signal from Africa or Asia, or he can simply
punch four digits into a portable set by his bedside and listen to news from the British Broadcasting
Corporation or Radio Japan. He can spend hundreds of dollars erecting an antenna, or design a
specialized one built from a few dollars' worth of ordinary wire, or can get by with the two-foot
"whip" built into his set. But to do any of these, a prospective listener needs to know how to choose
his set, evaluate antennae, and locate the best frequencies for the planned reception. If he desires
confirmation of his "catches," he needs to know the protocol for obtaining a verification and, perhaps,
how to describe his reception in the local language. This is the type of information this Handbook was
designed to give, in a form readily usable by the average shortwave listener.
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