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The Beginner's Handbook of Amateur Radio
FM_Laster 9/25/01 12:46 PM Page i THE BEGINNER’S HANDBOOK OF AMATEUR RADIO This page intentionally left blank. FM_Laster 9/25/01 12:46 PM Page iii THE BEGINNER’S HANDBOOK OF AMATEUR RADIO Clay Laster, W5ZPV FOURTH EDITION McGraw-Hill New York San Francisco Washington, D.C. Auckland Bogotá Caracas Lisbon London Madrid Mexico City Milan Montreal New Delhi San Juan Singapore Sydney Tokyo Toronto McGraw-Hill abc Copyright © 2001 by The McGraw-Hill Companies. All rights reserved. Manufactured in the United States of America. Except as per- mitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-139550-4 The material in this eBook also appears in the print version of this title: 0-07-136187-1. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trade- marked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringe- ment of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more information, please contact George Hoare, Special Sales, at [email protected] or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. -
Bell Telephone Magazine
»y{iiuiiLviiitiJjitAi.¥A^»yj|tiAt^^ p?fsiJ i »^'iiy{i Hound / \T—^^, n ••J Period icsl Hansiasf Cttp public Hibrarp This Volume is for 5j I REFERENCE USE ONLY I From the collection of the ^ m o PreTinger a V IjJJibrary San Francisco, California 2008 I '. .':>;•.' '•, '•,.L:'',;j •', • .v, ;; Index to tne;i:'A ";.""' ;•;'!!••.'.•' Bell Telephone Magazine Volume XXVI, 1947 Information Department AMERICAN TELEPHONE AND TELEGRAPH COMPANY New York 7, N. Y. PRINTKD IN U. S. A. — BELL TELEPHONE MAGAZINE VOLUME XXVI, 1947 TABLE OF CONTENTS SPRING, 1947 The Teacher, by A. M . Sullivan 3 A Tribute to Alexander Graham Bell, by Walter S. Gifford 4 Mr. Bell and Bell Laboratories, by Oliver E. Buckley 6 Two Men and a Piece of Wire and faith 12 The Pioneers and the First Pioneer 21 The Bell Centennial in the Press 25 Helen Keller and Dr. Bell 29 The First Twenty-Five Years, by The Editors 30 America Is Calling, by IVilliani G. Thompson 35 Preparing Histories of the Telephone Business, by Samuel T. Gushing 52 Preparing a History of the Telephone in Connecticut, by Edward M. Folev, Jr 56 Who's Who & What's What 67 SUMMER, 1947 The Responsibility of Managcincnt in the r^)e!I System, by Walter S. Gifford .'. 70 Helping Customers Improve Telephone Usage Habits, by Justin E. Hoy 72 Employees Enjoy more than 70 Out-of-hour Activities, by /()/;// (/. Simmons *^I Keeping Our Automotive Equipment Modern. l)y Temf^le G. Smith 90 Mark Twain and the Telephone 100 0"^ Crossed Wireless ^ Twenty-five Years Ago in the Bell Telephone Quarterly 105 Who's Who & What's What 107 3 i3(J5'MT' SEP 1 5 1949 BELL TELEPHONE MAGAZINE INDEX. -
Proposed Changes to the Morse Code (CW) ) RM-10784, Proficiency Requirement for Operator ) RM-10785, Access to the Amateur Radio Bands ) RM-10786, and Below 30 Mhz
Before the Federal Communications Commission Washington, DC 20554 ) In the Matter of ) RM-10781, ) RM-10782, The Amateur Radio Service: ) RM-10783, Proposed Changes to the Morse Code (CW) ) RM-10784, Proficiency Requirement for Operator ) RM-10785, Access to the Amateur Radio Bands ) RM-10786, and Below 30 MHz. ) RM-10787 ) COMMENTS TO PETITIONS FOR RULEMAKING GREETINGS: INTRODUCTION As all parties concerned are no doubt aware, the Morse code telegraphy proficiency requirement for Amateur Radio Service operators has been eliminated from the International Telecommunications Union (ITU) Radio Regulations. This change was effected on 5 July 2003 at the World Radiocommunication Conference 2003 (WRC-03), Geneva, by revising Article 25.5 §3 1 of these regulations. The revised Article 25.5 now gives the administrations of individual member nations, such as the US Federal Communications Commission (FCC or Commission), discretion to “…determine whether or not a person seeking a license to operate an amateur station shall demonstrate the ability to send and receive texts in Morse code signals.” Previously, knowledge of or demonstration of Morse code proficiency had been required by ITU regulation for amateur radio operation on all frequencies below 30 MHz. These 1 Dixon Comments frequencies include all of the amateur High Frequency (HF or shortwave) bands, and the one amateur Medium Frequency (MF or medium-wave) band. Note: For purposes of this document, references henceforth to “HF” or “High Frequency” or “shortwave” shall be deemed to include MF or Medium Frequency or medium-wave, as well. This is in fact colloquial nomenclature among amateur radio operators. The various petitions for rulemaking captioned above seek various degrees of relief from the somewhat burdensome requirement for US-licensed Amateur Radio Service operators (amateurs), presently needed to access the very popular and preferential international High Frequency amateur radio bands. -
Portable Shortwave Receivers
Portable Shortwave Receivers ● Longwave, AM, FM and Shortwave ELITE SATELLIT ● VHF Air Band ● HD Radio Reception ● RDS Display ● Superior Sensitivity and Selectivity ● Dual Conversion Design ● Huge 5.7 Inch Backlit Display ● Drift-free Digital Phase Lock Loop ● Direct Frequency and Band Entry ● Single Sideband Synchronous Detector ● Selectable Bandwidths ● High Dynamic Range ● Dual Programmable Clocks ● Dual Event Programmable Timers ● Stereo Line Level Input ● Stereo Line Level Output ● Earphone Jack ● Separate Bass and Treble Controls ● Adjustable AGC: Fast or Slow ● Telescopic Antenna AM/FM/SW ● Battery (4xD) or Included AC Adapter ● Scan and Search ● 1700 Total Memories (500 alphanumeric) ● Deluxe Carry Bag The Elite Satellit is simply the finest full-sized portable in the world. The Elite Satellit is an elegant confluence of performance, features and capabilities. The look, feel and finish of this radio is superb. The solid, quality feel is second to none. The digitally synthesized, dual conversion shortwave tuner covers all long wave, mediums wave (AM) and shortwave frequencies. HD Radio improves audio fidelity and adds additional programming without a subscription fee. Adjacent frequency interference can be minimized or eliminated with a choice of three bandwidths [7.0, 4.0, 2.5 kHz]. The sideband selectable Synchronous AM Detector further minimizes adjacent frequency interference and reduces fading distortion of AM signals. IF Passband Tuning is yet another advanced feature that functions in AM and SSB modes to reject interference. AGC is selectable at fast or slow. High dynamic range permits the detection of weak signals in the presence of strong signals. All this coupled with great sensitivity will bring in stations from every part of the globe. -
JOTA Activity Booklet KE4TIO
1 2 3 Gulf Ridge Council Pack 415 KE4TIO Alan Wentzell (Operator) Amateur Call Signs Heard and Worked: __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ States Contacted: __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ Countries Contacted: __________________________________ __________________________________ __________________________________ __________________________________ Scouts Present: __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ Akela’s Present: __________________________________ __________________________________ __________________________________ __________________________________ __________________________________ 4 Q Codes The “Q” code was originally developed as a way of sending shorthand messages in Morse Code. However, it is still used by operators for voice communications. Some of those in common use are listed below: QRA What is your call sign? QRM I have interference (manmade). QRN I am receiving static (atmospheric noise). QRT I am closing -
Digital Radio Technology and Applications
it DIGITAL RADIO TECHNOLOGY AND APPLICATIONS Proceedings of an International Workshop organized by the International Development Research Centre, Volunteers in Technical Assistance, and United Nations University, held in Nairobi, Kenya, 24-26 August 1992 Edited by Harun Baiya (VITA, Kenya) David Balson (IDRC, Canada) Gary Garriott (VITA, USA) 1 1 X 1594 F SN % , IleCl- -.01 INTERNATIONAL DEVELOPMENT RESEARCH CENTRE Ottawa Cairo Dakar Johannesburg Montevideo Nairobi New Delhi 0 Singapore 141 V /IL s 0 /'A- 0 . Preface The International Workshop on Digital Radio Technology and Applications was a milestone event. For the first time, it brought together many of those using low-cost radio systems for development and humanitarian-based computer communications in Africa and Asia, in both terrestrial and satellite environments. Ten years ago the prospect of seeing all these people in one place to share their experiences was only a far-off dream. At that time no one really had a clue whether there would be interest, funding and expertise available to exploit these technologies for relief and development applications. VITA and IDRC are pleased to have been involved in various capacities in these efforts right from the beginning. As mentioned in VITA's welcome at the Workshop, we can all be proud to have participated in a pioneering effort to bring the benefits of modern information and communications technology to those that most need and deserve it. But now the Workshop is history. We hope that the next ten years will take these technologies beyond the realm of experimentation and demonstration into the mainstream of development strategies and programs. -
Shortwave-Listening
Listen to global news in the making! Monitor transmissions from Voice of America. Radio Canada, Radio Netherlands. Radio Moscow and many others. Learn how radio waves tra- vel. Get information on popular shortwave bands and licensing for a Itypes of equipment. Radio Listener's Guide by William Barden, Jr. Radio Shack A Division of Tandy Corporation First Edition First Printing-1987 Copyright01987 by William Barden Jr., Inc. Printed in the United States of America. All rights reserved. Reproduction or use, without express permission, of editorial or pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the use of the information contained herein. Library of Congress Catalog Card Number: XX-XXXXX Radio Listener's Guide T Table of Contents Section I World of the BBC, Radio Moscow, Police Calls, Aircraft Communications, and Hams Chapter 1. Radio—What Is It' Generating Radio Waves—The Radio Spectrum—Radio Equipment and Frequencies—Band Use—How Radio Waves Travel—Radio Licenses and Listening—Subbands and Channels—Radio Equipment Chapter 2. Types of Broadcasting Voice Communication—Code Transmission—Teleprinter Transmission— Facsimile Transmission—Slow-Scan Television—Fast-Scan Television — Repeaters— Portable Phones—Satellite Reception—Transmitting Power Chapter 3. Shortwave Broadcasters Frequency Assignments—The European Long-Wave Band—The AM Broadcast Band—Tropical Broadcasting-49- and 41-Meter Bands-31- and 25-Meter Bands—Above the 25-Meter Band—A Typical Listening Session—Logging Foreign Stations—Foreign Broadcast lnformation—QSL Cards Chapter 4. Other Types of Broadcasting in the Lower Frequencies Transmissions Below the AM Broadcast Band—The AM Broadcast Band— Portable Phones—Marine Transmissions—CW Transmissions—Radio Teleprinter—Single Sideband—Time and Frequency Signals—Weather Maps by Facsimile—Citizen's Band Frequencies—The Russian Woodpecker—Pirate and Clandestine Stations Chapter 5. -
Digital Mode Presentation
Digital Mode Presentation General Knowledge Digital communication is the exchange of digital data over the air • Email, Digital files, Keyboard-to-keyboard (chat), and others Protocols on today’s menu • RTTY, PACTOR, JT9/65, PSK31, FSQCall, Olivia Communication = digital mode if info is exchanged as individual characters encoded as digital bits. Example: A = ASCII 01000001 Some consider CW a digital mode. (an A = di-dah) Some modes are old, like radio-teletype, invented in the 1930’s. Some modes are new, like FSQ, invented in the mid-2015’s. Where? • Look at an amateur band chart (80 meters and 20 meters) • Look at a band plan (2-4, 2-17, 6-2) • Show CW, PSK31 (3.570 & 14.070) and RTTY • Look at http://bandplans.com Definitions Air Link – the part of the communication system involving radio transmissions and reception of signals. Bit – fundamental unit of data; a 0 or 1 in binary Bit rate – number of bits per second sent from one system to another. Symbol – signal characteristics that make up each distinct state of the transmitted signal • CW symbols = on and off • RTTY symbols are tones • Baudot or ASCII (simple methods) encode one bit in each symbol • Sophisticated codes use complex audio signals to carry the data and encode more than one bit in each symbol Baud – number of symbols per second that are sent from one system to another. Duty cycle – ratio of transmitting to total on/off time • Important to know duty cycle of mode because most transmitters are not designed to operate at full power for extended periods of time. -
Federal Communications Commission DA 21-1075
Federal Communications Commission DA 21-1075 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) AMERICAN RADIO RELAY LEAGUE ) ) Emergency Request for a Temporary Waiver of ) Section 97.307(f) of the Commission’s Rules ) ORDER Adopted: August 30, 2021 Released: August 30, 2021 By the Deputy Chief, Mobility Division, Wireless Telecommunications Bureau: 1. Introduction. We have before us a request filed by the American Radio Relay League (ARRL) for a temporary waiver to permit amateur data transmissions at a higher symbol rate than currently is permitted by section 97.307(f) of the Commission’s rules, in order to facilitate hurricane relief communications within the United States and its territories.1 For the reasons set forth below, we grant the waiver request. 2. Background. Section 97.307(f) limits the symbol rate (also known as the baud rate) – the rate at which the carrier waveform amplitude, frequency, and/or phase is varied to transmit information2 – for high frequency (HF) amateur radioteletype (RTTY)/data transmissions as follows to 300 bauds for frequencies below 28 MHz (except the 60 meter band), and 1200 bauds in the 10 meter (28- 29.7 MHz) band.3 The digital code used to encode the signal being transmitted must be one of the codes specified in section 97.309(a) of the Commission’s rules, but an amateur station transmitting a RTTY or data emission using one of the specified digital codes may use any technique whose technical characteristics have been publicly documented, such as CLOVER, G-TOR, or PACTOR.4 3. -
Ethics and Operating Procedures for the Radio Amateur 1
EETTHHIICCSS AANNDD OOPPEERRAATTIINNGG PPRROOCCEEDDUURREESS FFOORR TTHHEE RRAADDIIOO AAMMAATTEEUURR Edition 3 (June 2010) By John Devoldere, ON4UN and Mark Demeuleneere, ON4WW Proof reading and corrections by Bob Whelan, G3PJT Ethics and Operating Procedures for the Radio Amateur 1 PowerPoint version: A PowerPoint presentation version of this document is also available. Both documents can be downloaded in various languages from: http://www.ham-operating-ethics.org The PDF document is available in more than 25 languages. Translations: If you are willing to help us with translating into another language, please contact one of the authors (on4un(at)uba.be or on4ww(at)uba.be ). Someone else may already be working on a translation. Copyright: Unless specified otherwise, the information contained in this document is created and authored by John Devoldere ON4UN and Mark Demeuleneere ON4WW (the “authors”) and as such, is the property of the authors and protected by copyright law. Unless specified otherwise, permission is granted to view, copy, print and distribute the content of this information subject to the following conditions: 1. it is used for informational, non-commercial purposes only; 2. any copy or portion must include a copyright notice (©John Devoldere ON4UN and Mark Demeuleneere ON4WW); 3. no modifications or alterations are made to the information without the written consent of the authors. Permission to use this information for purposes other than those described above, or to use the information in any other way, must be requested in writing to either one of the authors. Ethics and Operating Procedures for the Radio Amateur 2 TABLE OF CONTENT Click on the page number to go to that page The Radio Amateur's Code ............................................................................. -
Digital: CVARC Basic Radio Tech Talk
CVARC – BASIC RADIO TECH TALK DIGITAL RADIO OPERATIONS 19 October 2018 Bill Willcox, Rob Hanson, Jaap Goede Basic Radio Tech Talk Digital Operations Basic Information – Bill Willcox Types of Digital Operations What You Need to Get Started Resources HF Digital Demonstration Part 1 – Rob Hanson HF Digital Demonstration Part 2 – Jaap Goede Amateur Radio Digital Operations Digital Voice Modes Digital voice modes encode speech into a data stream before transmitting it. The Big Three: DSTAR - Open specification with proprietary vocoder system available from Icom, Kenwood, and FlexRadio Systems. DMR - Found in both commercial and public safety equipment from multiple vendors. System Fusion - Open specification with proprietary vocoder system available from Yeasu. Amateur Radio Digital Operations Text and Data Modes D-STAR (Digital Data) a high speed (128 kbit/s), data- only mode. Hellschreiber, also referred to as either Feld-Hell, or Hell Discrete multi-tone modulation modes such as Multi Tone 63 (MT63) Amateur Radio Digital Operations Text and Data Modes - Continued Multiple frequency-shift keying (MFSK) modes such as FSK441, JT6M, JT65, and FT8 Olivia MFSK Packet radio (AX25) Automatic Packet Reporting System (APRS) Amateur Radio Digital Operations Text and Data Modes - Continued PACTOR Phase-shift keying: 31 baud binary phase shift keying: PSK31 31 baud quadrature phase shift keying: QPSK31 63 baud binary phase shift keying: PSK63 63 baud quadrature phase shift keying: QPSK63 Amateur Radio Digital Operations Text -
Amateur Radio January
AMATEUR JANUARY RADIO 1953 TELETYPE SOCIETY yes, we've done it yes, we've done it The last issue of the Bulletin was already on the presses when the word came through that our long sought objective had been won and that within a few weeks we would have the priviledgeof operating on the lower frequencies with frequency shift keyed teletype. ·The regulations were not exactly what we wanted, much gnashing of teeth being heard about the c.w. call signing sections, but then this was sugar-coated by the open invita- tion of the FCC for us to get busy and use the present regulations and then suggest improvement s, In their own words: "It further appearinr. that clarification of the proposed requirements for the transmission of call s i gn s as requested is desirable, ", Full reproduction of the release and regulations should appear in CQ and QST so I won't fill four pages of the Bulletin with it. There has been some confusion among the newer adherents of RTTY about FSK and AFSK. The new regu 1at ions perm it FSK (frequency sh ift key ing) in the bands: 3500-3800 kc, 7000-7200 kc, 1~00-1~200 kc, 1~300-1~35O kc. No new bands have been alloted to AFSK transmission (audio frequency shift keying) so the old bands of II, 6, 2, and up are still authorized for this mode of operation. With FSK the frequency of the transmitter is shifted 850 cycles and there is no modulation used. With AFSK the trans- mitter frequency remains unchanged and an audiO tone is used to modulate the carrier.