DOCSLIB.ORG

Bibliography on Tropospheric Propagation of Radio Waves

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Bibliography on Tropospheric Propagation of Radio Waves National Bureau of Standards Library, M.W. Bldg APR 8 1965 ^ecknical ^iote 304 BIBLIOGRAPHY ON TROPOSPHERIC PROPAGATION OF RADIO WAVES WILHELM NUPEN mm U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS THE NATIONAL BUREAU OF STANDARDS The National Bureau of Standards is a principal focal point in the Federal Government for assuring maximum application of the physical and engineering sciences to the advancement of technology in industry and commerce. Its responsibilities include development and maintenance of the national stand- ards of measurement, and the provisions of means for making measurements consistent with those standards; determination of physical constants and properties of materials; development of methods for testing materials, mechanisms, and structures, and making such tests as may be necessary, particu- larly for government agencies; cooperation in the establishment of standard practices for incorpora- tion in codes and specifications; advisory service to government agencies on scientific and technical problems; invention and development of devices to serve special needs of the Government; assistance to industry, business, and consumers in the development and acceptance of commercial standards and simplified trade practice recommendations; administration of programs in cooperation with United States business groups and standards organizations for the development of international standards of practice; and maintenance of a clearinghouse for the collection and dissemination of scientific, tech- nical, and engineering information. The scope of the Bureau's activities is suggested in the following listing of its four Institutes and their organizational units. Institute for Basic Standards. Electricity. Metrology. Heat. Radiation Physics. Mechanics. Ap- plied Mathematics. Atomic Physics. Physical Chemistry. Laboratory Astrophysics.* Radio Stand- ards Laboratory: Radio Standards Physics; Radio Standards Engineering.** Office of Standard Ref- erence Data. Institute for Materials Research. Analytical Chemistry. Polymers. Metallurgy. Inorganic Mate- rials. Reactor Radiations. Cryogenics.** Office of Standard Reference Materials. Central Radio Propagation Laboratory.** Ionosphere Research and Propagation. Troposphere and Space Telecommunications. Radio Systems. Upper Atmosphere and Space Physics. Institute for Applied Technology. Textiles and Apparel Technology Center. Building Research. Industrial Equipment. Information Technology. Performance Test Development. Instrumentation. Transport Systems. Office of Technical Services. Office of Weights and Measures. Office of Engineer- ing Standards. Office of Industrial Services. * NBS Group, Joint Institute for Laboratory Astrophysics at the University of Colorado. * * Located at Boulder, Colorado. NATIONAL BUREAU OF STANDARDS Technical Note 304 ISSUED APRIL 1, 1965 BIBLIOGRAPHY ON TROPOSPHERIC PROPAGATION OF RADIO WAVES Wilhelm Nupen Central Radio Propagation Laboratory National Bureau of Standards Boulder, Colorado NBS Technical Notes are designed to supplement the Bu- reau's regular publications program. They provide a means for making available scientific data that are of transient or limited interest. Technical Notes may be listed or referred to in the open literature. For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C., 20402 - Price $2.00 NOTE: Abstractors /Tropospheric radio wave propagation bibliography MGA Staff members: A. A ANDREW ASSUR R.B RONALD BAKER C.E.P.B C.E.P. BROOKS I.L. D IS ADORE L. DORDICK M.B. G M.B. GAVRISHEFF D. M. G DOROTHY M. GROPP P. A. K PAULINE A. KEEHN E. K ELEMER KISS H. P. K HARRIS P. KRAMER D. B. K DOV B. KRIMGOLD N. N NNDEM E. U, NNDEM S.N SYLVIA NOWINSKA W. N WILHELM NUPEN M. R MALCOLM RIGBY I.S ISMAIL SAAD E.Z.S EVELYN Z. SINHA O. T OTTO TABORSKY G. T GEZA THURONYI Others: H.T.D H.T.Dougherty R. M ROBERT Mc COLLUM R.S.Q R.S. QUIROS BRITISH INSTITUTE OF RADIO ENGINEERS ELECTRICAL ENGINEERS N. T. G. NACHRICHTENTECHNISCHE GESELLSCHAFT WIRELESS ENGINEERS Library Symbols: DBS... .U.S. National Bureau of Standards, Washington, D.C. DGS .. .. U. S. Geological Survey, Washington, D.C. DLC .. ..Library of Congress, Washington, D.C. DWB . .U.S. Weather Bureau, Suitland, Maryland DN-HO . .U.S. Navy Hydrographic Office, Suitland, Maryland CONTENTS INTRODUCTION Page i SUBJECT OUTLINE iii GEOGRAPHICAL OUTLINE xxxv BIBLIOGRAPHY ON TROPOSPHERIC PROPAGATION OF RADIOWAVES AUTHOR INDEX 280 SUBJECT INDEX (alphabetized) 290 LIST OF JOURNALS 299 BIBLIOGRAPHY ON TROPOSPHERIC PROPAGATION OF RADIO WAVES INTRODUCTION This is the fifth in a series of bibliographies being prepared by the M&GA staff of the American Meteorological Society for the Boulder Laboratories of the National Bureau of Standards. The first four were: (1) Bibliography on Ionospheric Propagation of Radio Waves (1923- 1960). NBS Technical Note No. 84, Oct. 1960. (1404 items) (2) Bibliography on Meteoric Radio Wave Propagation. NBS Technical Note No. 94, May 1961. (368 items) (3) Bibliography on Auroral Radio Wave Propagation . NBS Technical Note No. 128, Jan. 1962. (297 items) (4) Bibliography on Atmospheric Aspects of Radio Astronomy . NBS Technical Note No. 171, May 1963. (1013 items) The present bibliography on Tropospheric Propagation of Radio Waves contains over a thousand abstracts or titles taken from the literature published between 1945 and 1964, incl. , but the bulk of the literature comes after 1955. The subject matter in this bibliography is confined to the effects of the Earth's atmosphere on radiofrequency radiation from 10 cps to 100,000 Mc. Obviously not all of the vast amount of current and past literature on tropospheric propagation is included in this compilation, yet in spite of this fact, and in spite of gaps in the coverage of the world's literature in this field, the selection of material has been quite rigorous. The following detailed subject outline shows the scope and the many facets of the material included herein. A geographical and an author index are also included. We wish to express appreciation for guidance given by the staff of the NBS Boulder Laboratories, particularly to Mr. Bradford R.Bean, for valuable assistance in determining the scope and content of this and previous bibliographies on radio propagation. We also wish to thank Mrs. Doris Nickey for patient labor in typing and correcting the master copies of these five bibliographies; to Mr. Geza Thuronyi and Elemer Kiss for abstracting a large number of recent items; to Mrs.Susanne Manovill for preparing the Geographic Outline; and to other members of the M&GA staff for their contributions. These bibliographies are available through the U. S. Department of Commerce, Office of Technical Services, Washington 25, D.C. This publication, NBS Technical Note No. , is available from the Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C. Any comments, criticisms, corrections, additions, or material for future radio propagation bibliographies should be addressed to: Malcolm Rigby, Editor Meteorological & Geoastrophysical Abstracts P. O. Box 1736 Washington 13, D.C. - 20013 11 INDEX to the SUBJECT OUTLINE I. GENERAL WORKS, p. iii - iv 1. Textbooks, Manuals, Mono- 4. Data publications, p. iii graphs, p. iii 5. General reviews and surveys, p. iv 2. Scientific reports, Technical re- 6. Bibliographies, p. iv ports, Committee reports, Pro- 7. Conferences, symposia, p. iv ject reports, Research pro- 8. History, p. iv grams, p. iii 9. Nomenclature, p. iv 3. Theses, p. iii II. THEORIES, FORMULAS, MODELS, p. iv - viii 1. Theories, p. iv - vi 2. Formulas, p. vi - viii 3. Models, p. viii III. ATMOSPHERIC STRUCTURE AND CHARACTERISTICS, p. viii - xiii 1. Stratification, p. viii - ix 8. Storms, p. xi 2. Atmospheric factors, p. ix 9. Clouds, p. xi 3. Refractive index, p. ix - x 10. Atmospheric altitudes (tables in 4. Air masses, p. x - xi km, ft, mb), p. xii 5. Fronts, p. xi 11. Miscellaneous, p. xiii 6. Turbulence, p. xi 12. Ionosphere, p. xiii 7. Winds, p. xi IV. PHYSICO - CHEMICAL FACTORS AND PROCESSES, p. xiii 1. Scattering, p. xiii 7. Scintillation, p. xv 2. Reflection, p. xiv 8. Dielectrics, p. xv 3. Refraction, p. xiv 9. Surface conductivity, p. xv 4. Diffraction, p. xiv 10. Ionization, p. xv 5. Absorption, p. xiv 11. Miscellaneous, p. xv 6. Attenuation, p. xv V. WAVE CHARACTERISTICS, p. xvi - xxii 1. Frequency bands (EHF.SHF, UHF, 3. Wavelength (mm, cm, m, km), p. xix - xx VHF, HF, MF.LF, VLF, ELF, etc. ), 4. Propagation modes, p. xx - xxi p. xvi 5. Fading, p. xxi 2. KMc/s (GC/s), Mc/s, Kc/s, 6. Echoes, p. xxi and Cps, p. xvii - xix 7. Miscellaneous waves, p. xxi - xxii VI. RADIO COMMUNICATION, p. xxii - xxvii 1. Experimental transmission, p. xxii 5. Terrestrial effects, p. xxiii • xxiv 2. Transmission losses, p. xxii 6. Miscellaneous, p. xxiv 3. Forecasting conditions for radio 7. Reception, Field strength, p. xxiv - xxv communication, p. xxii - xxiii 8. Radio communication paths, p. xxv - 4. Effects on radio communica- 9. Path lengths (Mi, Ft, Km) , p. xxvi xxvii tion, p. xxiii VII. INSTRUMENTS, EQUIPMENT, DESIGN CONSIDERATIONS, p. xxvii - xxx 1. Antenna types, p. xxvii 4. System design considerations, p. xxviii 2. Antenna characteristics, p. xxviii 5. Miscellaneous instruments, p. xxviii 3. System reliabilities, p. xxviii VIII. TECHNIQUES AND METHODS, THEORETICAL AND APPLIED, p. xxx - xxxiv Ill SUBJECT OUTLINE I. GENERAL WORKS 1. Textbooks, E-71, 143, 161, 168, 181, 436, 449, 575, 597, 676, 687, 693, 699, 710, 769, 784, 880, 1095 Manuals,
Load more

Recommended publications
  • Man of High Fidelity
    Man of High Fidelity: EDWIN HOWARD ARMSTRONG A Biography – By Lawrence Lessing With a new forward by the author Page iii Pratt DISCLAIMER DISCLAIMER TO THIS SCANNED AND OCR PROCESSED COPY This PDF COPY is for use at Pratt Institute for Educational Purposes Only I affirm that sufficient print copies of the original Bantam Book Paperback are in stock in ARC E-08 that would more than adequately cover a full class use of the text. HOWEVER, due to the fact that the 1969 text is no longer in publication, complicated by the fact that these copies are forty-four (44) years old and in a very fragile condition, this PDF version of the text was created for student use in the Department of Mathematics and Science. - Professor Charles Rubenstein, January 2013 Man of High Fidelity: Edwin Howard Armstrong EDWIN HOWARD ARMSTRONG Was the last – and perhaps the least known – of the great American Inventors. Without his major contributions, the broadcasting industry would not be what it is today, and there would be no FM radio. But in time of mushrooming industry and mammoth corporations, the recognition of individual genius is often refused, and always minimized. This is the extraordinary true story of the discovery of high fidelity, the brilliant man and his devoted wife who battled against tremendous odds to have it adopted, and their long fight against the corporations that challenged their right to the credit and rewards. Mrs. Armstrong finally ensured that right nearly ten years after her husband’s death. Page i Cataloging Information Page This low-priced Bantam Book has been completely reset in a type face designed for easy reading, and was printed from new plates.
    [Show full text]
  • En Utredning Utarbeidet for Kristelig Kringkastingslag(Nå: Familie Og Medier) Ved Svenn Martinsen
    Perspektiver for kristen kringkasting i Norge. En utredning utarbeidet for Kristelig Kringkastingslag(nå: Familie og Medier) ved Svenn Martinsen. (28.juni 1993) 1 FORORD Det har skjedd avgjørende og viktige ting innen media i 1993. Departementets Mediemelding ble presentert i vår, og det nærmer seg ny konsesjonsutlysning for nærkringkasting. NRK har kommet med sin nyskapning “Petre”, og sender nå på tre riksdekkende kanaler. Den kommersielle radiostasjonen P4 ( Radio Hele Norge) kom på luften 15.september. Det landsdekkende TV- monopolet ble brutt allerede i 1992, i og med TV2s fremtreden på arenaen. I 1995 lanseres en ny type distribusjon av radiokanaler: Digital lydkringkasting(Digital Audio broadcasting-DAB) Dette vil gjøre det teknisk mulig å etablere en rekke nye radiostasjoner, både på lands-og regionalbasis. I en slik endringskultur er det viktig at kristenfolket er informert og ser sitt ansvar og utfordringene på radio-sektoren. Ingen organisasjoner, kirker, nærkringkastere eller medieorganisasjoner på kristen grunn sitter i dag inne med bakgrunnsmateriale nok til å gjøre en skikkelig gjennomtenkning av sin plass i bildet. KKL ønsker at dette utredningsarbeidet skal komme det kristne norske radiomiljøet til gode. Det er tenkt som en stimulans for å utløse organisasjonsmessige og personlige visjoner og opplegg, og fremme engasjement og tenkning om kristen radio i de ulike deler av landet. KKL vil med denne utredningen gjøre sitt til at de forventede premissene for utviklingen kommer på bordet, slik at det kristne Norge skal kunne gjøre de rette valg i de avgjørende årene som kommer. DISPOSISJON Denne utredningen har 6 kapitler. Disse tar for seg: 1. De historiske forutsetninger for fremtidens mediebilde.
    [Show full text]
  • WA2XMN Reception Reports
    WA2XMN Reception Reports ID Type Date Name Location 1 Air 6/11/2005 9:31:00 AM Peggy Ellen Reynolds Jersey City I am happy to report reception loud and clear in Jersey City - enjoying Carmina Burana (did you make some cuts in it?) Anyhow, my good friend Al Klase set up an antique receiver and antenna from my 3rd floor and it's working real good. At the risk of appearing an opportunist, I have sent Al up with a "plug" for my orchestra (copy attached) in case you run out of broadcasting material. The Bergen Philharmonic's 70th anniversary is also fast approaching, and we're a local community orchestra (one of our orchestra members even lives in Alpine). Would also enjoy hearing back from you -- good luck today in your anniversay broadcast! 2 Air 6/11/2005 9:52:00 AM Mike Masterson, WN2A Budd Lake,NJ Greetings From Budd Lake,NJ: Your station WA2XMN was received this morning (9:45 am local) here in Budd Lake . Receiver IC-R7000 Antenna : Fan Dipole for 30M Amateur Band Report: Full Quieting ! Location: Grid Square FN20ou 1050' ASL Heard Opera Music My friend ,George Engert , W2MRJ worked at Alpine in the early 50's. He will be listening on 89.1 MHz. Your Transmitter is doing very FB. Nice Work Steve!!! 73's Mike Masterson, WN2A 3 Web 6/11/2005 12:04:00 PM Jeff Paletz Thanks for doing this. 4 Air 6/11/2005 12:05:00 PM Larry Guerrera Jericho, New York Hearing you right now over the web in Jericho, New York on the North Shore of Long Island.
    [Show full text]
  • PCARA Update December 2008
    PCARA Update Volume 9, Issue 12 Peekskill / Cortlandt Amateur Radio Association Inc. December 2008 over the items being offered. Just bring the best of your Anchors away! shack’s detritus and sit back and watch the sparks fly! The PCARA Annual Holiday Dinner will take place It’s a great way of recycling gear to other members, and on Sunday December 7, 2008 at At the Reef on you just might find something you may like for yourself. Annsville Circle. The dinner will start a bit later than Contact Malcolm, NM9J for further details. usual this year, at 5:00 p.m., to allow more of our To each of you, your families, and loved ones, I friends to be able to join us. If you’ve decided that wish a very Happy and Healthy Holiday Season, and a you’d like to join us, just make sure you e-mail Marylyn, most Joyous and Blessed New Year! KC2NKU and Ray, W2CH ASAP at w2ch “at” arrl.net. We always have room for more! - 73 de Greg, KB2CQE PCARA Officers President: Greg Appleyard, KB2CQE, kb2cqe at arrl.net Vice President: Joe Calabrese, WA2MCR; wa2mcr at arrl.net Net night Peekskill/Cortlandt Amateur Radio Association holds a weekly net on the 146.67 MHz W2NYW re- peater on Thursdays at 8:00 p.m. Join net control Karl, N2KZ for neighborly news and technical topics. On December 7, cruise into Annsville Cove and drop anchor “At The Reef” restaurant for PCARA’s annual holiday dinner... Contents At the January 4, Anchors away! - KB2CQE 1 2009 meeting we will Adventures in DXing - N2KZ 2 be observing another LED lamps - NM9J 4 tradition-in-the- Field Day Results 5 making, the “PCARA 75 years of FM - NM9J 6 Bring and Buy Auc- WDFH move 8 tion” at Hudson Valley Auction time approaches 8 Hospital Center.
    [Show full text]
  • Bibliography on Tropospheric Propagation of Radio Waves
    National Bureau of Standards Library, M.W. Bldg APR 8 1965 ^ecknical ^iote 304 BIBLIOGRAPHY ON TROPOSPHERIC PROPAGATION OF RADIO WAVES WILHELM NUPEN mm U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS THE NATIONAL BUREAU OF STANDARDS The National Bureau of Standards is a principal focal point in the Federal Government for assuring maximum application of the physical and engineering sciences to the advancement of technology in industry and commerce. Its responsibilities include development and maintenance of the national stand- ards of measurement, and the provisions of means for making measurements consistent with those standards; determination of physical constants and properties of materials; development of methods for testing materials, mechanisms, and structures, and making such tests as may be necessary, particu- larly for government agencies; cooperation in the establishment of standard practices for incorpora- tion in codes and specifications; advisory service to government agencies on scientific and technical problems; invention and development of devices to serve special needs of the Government; assistance to industry, business, and consumers in the development and acceptance of commercial standards and simplified trade practice recommendations; administration of programs in cooperation with United States business groups and standards organizations for the development of international standards of practice; and maintenance of a clearinghouse for the collection and dissemination of scientific, tech- nical, and engineering information. The scope of the Bureau's activities is suggested in the following listing of its four Institutes and their organizational units. Institute for Basic Standards. Electricity. Metrology. Heat. Radiation Physics. Mechanics. Ap- plied Mathematics. Atomic Physics. Physical Chemistry. Laboratory Astrophysics.* Radio Stand- ards Laboratory: Radio Standards Physics; Radio Standards Engineering.** Office of Standard Ref- erence Data.
    [Show full text]
  • Allied Troops Ready to Aid Finns
    'V -/- J Average Doily Clrcnlntion The Weather For Ihe Mouth of February. 1910 Ferecaat'ol U^S. WeuUter Bureun Fhlr.und not qMto ue ouM to- nights iWedueeday cloudy, rielug 6,355 tesuperatme followed by wmmf In Mousbar «t tha Audit Mm u f t a m o o u kt night. Oureuu uf Ctreulatioue Manchester-— City of Village Charm / tUleaeWled Advurtlsiibg eu Page 10) MANCHESTER. CONN.. TUESD.VY', MARCH 12.1940 (TWELVE PAGES)., PRICE THRER VOL. LIX„ NO. 188 Bootleg Alki Firemen Save 20 Willi LadtU'rs Urges Hatciv Bill J Allied Troops Ready ^ Basis of First ' Cover^T^resident Musiea Coup To Aid Finns; Peace I ‘Dietrich* Says Merw in And His Cabinet ' And Phillips l^aughcd Smith Rec'pllla Efforts 100 Parking Meiers Arc Over ‘Legal' Practices; Prospects Brighte Of Roosi^elt in 1938 Smashed by Molorist Says They Got Bonus. Huntington. W. V«., March ’ To Defipht Certain Can- Now York, March 12. —(J*!—! Nnluralizvd CUixen Is 12.—(Ah—Police are recking a Opiiniisni Replarcs lin*' Daladler Says Tr didate^, who Opposed motorist who apparently I Grorgo E. Dlctrich-Musica, 46. ac- ' <‘4‘rlaiiity in Political l*Htrio(ic Until Death Fully Equipped Holiries, in Deniocralic (ioc.on't like the' city'r l.'JOd ! knowloilgrd in fodorni rourl twlay , parking racterr arid took an ! that the chief proilud of a Mount . < iin'Ics al SitH'k- Inglewood, Calif., March 12. With Transports 1 emphatic way of registering hie. —i/Ti—Brltlsh-bom Mrs. Bessie Primaries Contests. Vernon, N. Y., drug company disapproval. j holm; Definite Soviet i Owen,' 47, wss told several At Embarkation Pof 1 headetl by his brother, the late F.
    [Show full text]
  • CONNECTING a CONTINENT: AT&T and the Broadcast Networks
    CONNECTING A CONTINENT: AT&T and the Broadcast Networks Copyright 2021 by Mark Durenberger This is a second update of the original work dated October, 2013. The most important changes include: 1) The strengthening and expanding of a good deal of factual information, including further research and follow-up on comments and suggestions offered by readers of the original work. Thank you for your input! 2) The rebuilding of drawings and the addition of illustrations and URLs to offer deeper understanding. 3) The transfer of deep technical detail to the last chapter where it becomes a technical addendum. (This should make the story easier to follow and should make it easier for those not interested in such detail…while offering deep technical detail for those who are.) 4) The original URLs pointed to an older website. These hot buttons have been repointed as of April 2021. 5) The document has been reformatted and may be easier to read. To supplement the material referenced throughout, we’re fortunate to keep turning up fresh information online. New web sites appear almost daily containing scans of the trade magazines, literature and correspondence involving the subject under scrutiny (one of the most useful is WorldRadioHistory.Com). Hopefully the changes will be useful! "Everything that once was wireless is now wired. Everything that once was wired is now wireless." - Rodney E. Nilk About four years ago, inspired by a piece by James O’Neal in Radio World Magazine I came to realize that, while many of us grew up in a broadcast industry created in part by AT&T, there’s been no easy access to the full detail of AT&T’s contributions.
    [Show full text]
  • ON the ULTRA HIGHS- a History of Amateur Radio VHF Activities
    VHF HISTORICAL NOTES (Working Title) ON THE ULTRA HIGHS - A History of Amateur Radio VHF Activities - (Formal Title) Kevin Kaufhold, W9GKA Most Recent Update 12-2008 COPYRIGHT Copyright by Kevin C. Kaufhold. All rights reserved. Except as permitted under the United States Copyright Act, no part of this publication may be reproduced or distributed in any form or by any means, without the prior written permission of Kevin C. Kaufhold. The material contained herein may be referenced and cited to in other publications, provided proper credit is given. Many of the figures and diagrams contained in this are the copyright of the American Radio Relay League (ARRL), and have been reprinted with permission of the ARRL. The figures cannot be reproduced or distributed in any form or by any means, without the prior written permission of the ARRL. 2 TABLE OF CONTENTS ON THE ULTRA HIGHS .................................................................................................. 1 COPYRIGHT.................................................................................................................. 2 TABLE OF CONTENTS................................................................................................ 3 PREFACE....................................................................................................................... 4 Chapter 1 - A Scientific Inquiry of Electricity................................................................ 5 Chapter 2 – The Birth of Wireless ...............................................................................
    [Show full text]
  • Office of Chief ENGINEER RESEARCH DIVISION
    Federal Communications Commission OffiCE Of CHIEf ENGINEER RESEARCH DIVISION REPORT NO. R-6602 DEVELOPMENT OF VHF AND UHF PROPAGATION CURVES FOR TV AND FM BROADCASTING DEVELOPMENT OF VHF UHF PROPAGATION CURVES FOR BROADCASTING a Wa 3 R­ 1966 May, 1970 May,!2Z!t _ SUMMARY New propagation curves for use in television and frequency modulation broadcasting were developed from an extensive analysis of data accumulated since these broadcasting services were es­ tablished. A new method of applying terrain roughness factors for improving the accuracy of field strength predictions was developed for use with the new curves 4> The new curves apply for both the median and the field strength exceeded 10% of the time. At distances out to about 15 or 20 miles from the transmitter, the new VHF and UHF curves are nearly the same as those presently in the FCC Rules. At further distances, out to about 60 miles, the field strengths indicated by the new 500 foot VHF curves are within + 2 dB of the present curves. The new 1000 and 2000 foot VHF curves are up to 6 dB lower than their existing counterparts out to 86 and' 106 miles respectively for Channels 2-6, and out to 73 and 89 miles respectively for Channels 7-13, beyond which dis­ tances the new curves run up to 14 dB higher than the existing curves. For UHF the field strengths are somewhat lower than indi­ cated by the present curves, reaching a maximum change at dis­ tances in the order of 60 miles. There is very little change for average UHF antenna heights for distances beyond 110 miles.
    [Show full text]
  • Inside This Issue
    News ● Serving DX’ers since 1933 ● Volume 78, No. 24 ● March 28, 2011 ● (ISSN 0737-1639) Inside this issue . 2 … AM Switch 13 … International DX Digest 18 … Space Weather Forecast 6 … Domestic DX Digest East 15 … Confirmed DXer 19 … International DX 10 … Domestic DX Digest West 16 … Musings of the Members Achievements DX Tests: Thanks to everyone who arranged last yearʹs list. I am not sure that the Padres have the three very successful DX tests we had in a network. Please send me any URLs that you March. Your publisher heard four new stations find for these team lists.” on DX tests this season, which hasn’t happened Barry’s e‐mail is <[email protected]>. in quite a while. If you know folks at stations Membership Renewals: Please recall that ALL who might be interested in running a test, subscription renewals and publication orders – consider trying to arrange one. Saul Chernos is anything involving money – goes to NRC HQ in the inter‐club DX Test coordinator, and he can Aurora, CO. Please see the reminder at the fill you in on the details. You can reach him at bottom of page 12 for all the information you <[email protected]>. need. Your publisher neither cashes nor writes Convention 2011?: So far, no one has stepped checks – sending your renewal to Harpers Ferry forward to host this year’s convention. The last slows things down! time the NRC didn’t have an annual convention, DX News Publishing Schedule, Vol. 78 it was World War II – so it would really be a Deadline Masthead Deadline Masthead shame if we didn’t have something this year.
    [Show full text]
  • CONNECTING a CONTINENT: AT&T and the Radio Networks
    CONNECTING A CONTINENT: AT&T and the Radio Networks Copyright 2013 by Mark Durenberger "Everything that once was wireless is now wired. Everything that once was wired is now wireless." - Rodney E. Nilk About three years ago, inspired by a piece by James O’Neal in Radio World newsmagazine I came to realize that, while many of us grew up in a broadcast industry created in part by AT&T, there’s no easily-accessible access to the full detail of AT&T’s contributions. Furthermore, those with first-hand experience in an earlier analog world were retiring and the heritage of experience with AT&T methodology was being lost. This is unfortunate, since AT&T’s pioneering formed the practical electrical world in which we operate today. I also believe there’s a body of curious folks of all ages who wish to know more about these bedrock principles and about a company that was such a force in early commercial broadcasting. This work is the first step in satisfying that curiosity. We’ll drill down into early telecommunications history (before there was an AT&T) and we’ll learn how “The Telephone Company” was born, matured and made its mark in radio and in radio-network transmission. In its first half-century of service, the American Telephone and Telegraph Company developed and advanced audio connectivity by wire to every home and business in the country…and then used that wiring to expand the reach of radio networks that rode the copper to national coverage. These communications achievements helped lead to the homogenization of America, when regional boundaries fell and the nation began to experience common community.
    [Show full text]
  • Amendments of Part 73 and 74 to Improve the Low Power FM Radio
    REC Networks MB Docket 19-193 Reply Comments Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC In the matter of: ) ) Amendments of Part 73 and 74 to Improve the ) MB Docket 19-193 Low Power FM Radio Service Technical ) Rules ) ) Modernization of Media Regulation Initiative ) MB Docket 17-105 REPLY COMMENTS OF REC NETWORKS TABLE OF CONTENTS Heading Paragraph # I. INTRODUCTION................................................................................................................... 1 II. THE RECORD CLEARLY SHOWS THAT LP-250, FM TRANSLATOR RELIEF AND LPFM SHORT-SPACING SHOULD BE ADVANCED AS A FURTHER NOTICE OF PROPOSED RULEMAKING............................................. 5 A. What comes around, goes around at the NAB............................................................ 5 B. The record continues to show support for LP-250...................................................... 12 III. WHAT HAPPENS IN NEW JERSEY, STAYS IN NEW JERSEY........................................ 15 A. The “birthplace” of FM radio...................................................................................... 15 B. New Jersey’s unique Class-A situation compared with LP-250................................. 16 C. New Jersey FM stations already receive “special” protections from LPFM.............. 18 D. New Jersey should not dictate policy for the other 49 states and territories............... 19 IV. OTHER ISSUES....................................................................................................................... 21 A.
    [Show full text]