IEEE Transactions on Electromagnetic Compatibility

Issue 3  Part II • Aug. 1977

 This issue contains several parts.Go to:  Part I 

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  • Table of contents

    Publication Year: 1977, Page(s): c1
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  • IEEE Electromagnetic Compatibility Group

    Publication Year: 1977, Page(s): c2
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  • An Introduction to the IEEE EMC Transactions Special Issue on Spectrum Management

    Publication Year: 1977, Page(s):157 - 163
    Cited by:  Papers (3)
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  • Overview Reflections on the Spectrum-Management Process

    Publication Year: 1977, Page(s):164 - 165
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  • International and US Preparations for the 1979 World Administrative Radio Conference

    Publication Year: 1977, Page(s):166 - 170
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2007 KB)

    The International Telecommunication Union (ITU) will convene a World Administrative Radio Conference (WARC) in 1979 to review and modify, as appropriate, the existing International Radio Regulations. The conference will be attended by delegates from about 150 -nations and will have the authority to modify significantly the existing international Table of Radio Frequency Allocations. The last confe... View full abstract»

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  • The 1977 WARC on Broadcasting Satellites: Spectrum Management Aspects and Implications

    Publication Year: 1977, Page(s):171 - 178
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1688 KB)

    Broadcasting satellites are allocated as a primary service in the band 11.7-12.2 GHz (11.7-12.5 GHz in Europe, Africa, and the USSR), but the band is also allocated on a primary basis (equal sharing) to other services-fixed, mobile, broadcasting, and fixed satellite. Presented with these difficult sharing situations, delegates from over 100 countries met at an ITU World Administrative Radio Confer... View full abstract»

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  • International Frequency Registration Board (IFRB) Assistance to Member Countries of the ITU in Matters Relating to Frequency Management

    Publication Year: 1977, Page(s):179 - 182
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (977 KB)

    The main duties of the Intemational Frequency Registration Board (IFRB) of the Intemational Telecommunication Union (ITU) are described. Emphasis in this paper is placed on the assistance to administrations in the field of radio spectrum utilization (e. g., looking for alternative frequencies to avoid probably harmful interference, investigating cases of harmful interference or alleged contraventi... View full abstract»

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  • Spectrum Allocation and Economic Factors in FCC Spectrum Management

    Publication Year: 1977, Page(s):182 - 190
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2289 KB)

    In performing the functions of spectrum management, the U. S. Federal Communications Commission has traditionally been concerned with engineering and legal criteria, in addition to apparent social benefit. Economic factors in the form of opportunity cost or incentives to conserve the spectrum have not been explicitly included. This paper contains an analysis of the feasibility and merit of introdu... View full abstract»

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  • Spectrum Needs for Personal-Radio Services

    Publication Year: 1977, Page(s):191 - 195
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1048 KB)

    The existing personal-radio service in the United States at 27 MHz, the Citizens Band (CB) Service, is plagued with problems that directly or indirectly stem from the service's spectrum allocation. The current allocation appears insufficient to meet growing demands imposed by a large service population, now estimated to be in excess of 20-million persons. In addition, its radio/television-interfer... View full abstract»

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  • Spectrum Planning in the U. S. Federal Government

    Publication Year: 1977, Page(s):196 - 199
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (874 KB)

    This paper describes the spectrum-planning policy and the planning process for U. S. federal government telecommunications-electronics systems which, are, respectively, developed and conducted by the Office of Telecommunications Policy (OTP), within the frame-work of the international and national spectrum-allocation processes. The basic policy within th. e U. S. federal government concerning spec... View full abstract»

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  • Birddogging the Government's Use of the Spectrum

    Publication Year: 1977, Page(s):199 - 201
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (643 KB)

    Four US Federal Government programs designed by the Office of Telecommunications Policy to help determine how frequencies are used by US Government stations and to help keep the assignment data base accurate and current are described. These programs are spectrum measurements; five year review of assignments, usage reporting; and field survey. The history leading up to the establishment of these pr... View full abstract»

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  • The OT Spectrum Management Support Program-An Overview

    Publication Year: 1977, Page(s):202 - 203
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (473 KB)

    This paper gives an overview of the Office of Telecommunications, U. S. Department of Commerce, spectrum management support program. The program includes day-to-day operations concerned with providing frequency assignments to qualified U. S. federal government users, as well as planning and analysis support to help ensure efficient use of the radio spectrum from a long-term viewpoint. The program ... View full abstract»

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  • Spectrum Management Data Bases

    Publication Year: 1977, Page(s):204 - 212
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1495 KB)

    The Office of Telecommunications in the Department of Commerce (U.S.) supports the Executive Office of the President in the management of federal use of the radio spectrum. A portion of this support is in the maintenance of spectrum-related data filles and associated computer programs. The files describe the expected signal environment, both directly and indirectly. Several of the files are in the... View full abstract»

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  • The U. S. Federal-Wide Career Development Program for Radio Spectrum Management Personnel

    Publication Year: 1977, Page(s):213 - 215
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (782 KB)

    Today, radio spectrum management is, a highly complex professional field requiring the services of many talented and motivated individuals. Recognizing the increased complexity of communications-electronics equipment, the increased skills required to, manage the radio spectrum, and the large attrition of personnel occuring and foreseen in the spectrum management community, the Director, Office. of... View full abstract»

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  • Definition of a Measurement Capability for Spectrum Managers

    Publication Year: 1977, Page(s):216 - 224
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1829 KB)

    This paper defimes a spectrum measurement capability that will be directly useful to the managers of the radio-frequency spectrum. The proposed uses of such a capability are categorized as measurements to 1) determine spectrum occupancy, 2) check for and document compliance with assignment rules, regulations, and standards, and 3) facilitate electromagnetic compatibility (EMC) among the various sy... View full abstract»

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  • A Radio Spectrum Measurement System for Frequency Management Data

    Publication Year: 1977, Page(s):225 - 230
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2276 KB)

    Since 1973, the U. S. Office of Telecommunications has been operating a Radio Spectrum Measurement System (RSMS) for the Office of Telecommunications Policy (OTP) in support of federal frequency management processes. The RSMS is a van-deployed computer-controlled receiving system designed to make many different types of measurements between 100 MHz and 12 GHz. The RSMS has been used in measurement... View full abstract»

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  • A New State of the Art in EMC Field Measurement Instrumentation

    Publication Year: 1977, Page(s):230 - 236
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3248 KB)

    The U. S. Army, with engineering assistance from the U. S. Department of Commerce, has developed a powerful new tool which will significantly enhance the ability to ensure operational electromagnetic compatibility (EMC) among existing and planned communications facilities: the transportable, automated EMC measurement system (TAEMS). The TAEMS is a self-contained, self-propelled, air/ground transpo... View full abstract»

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  • Microwave Mobile Monitonrng Techniques

    Publication Year: 1977, Page(s):236 - 240
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2026 KB)

    Intelligent allocations and assignments lay the ground-work for electromagnetic compatibility; however, capability for measurements on emitters under actual-use conditions is necessary to ensure compliance with technical regulations, without which allocations and assignments mean little. Described in this paper is a vehicle-transported measurement system capable of measuring frequency, bandwidth, ... View full abstract»

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  • Examples of Signals and Noise in the Radio-Frequency Spectrum

    Publication Year: 1977, Page(s):241 - 253
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11231 KB)

    Many types of signals and noise inhabit the radio-frequency (RF) spectrum. This paper presents selected examples of the electromagnetic energy occupying blocks of this spectrum as observed on a real-time 3-axis (amplitude versus frequency and time) display connected to the output of a scanning receiver. These examples provide some insight into spectrum utilization. View full abstract»

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  • Spectrum Metrics and Spectrum Efficiency: Proposed Definitions

    Publication Year: 1977, Page(s):254 - 260
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1507 KB)

    A spectrum metric-a unit of measure of spectrum-space use-is defined and used to define a measure of spectrum efficiency as the ratio of communications output to spectrum-space input. It is shown that this efficiency measure is easier to compute than another candidate, and gives the same relative result. Several examples of the application of this measure are given. Implications of a definition of... View full abstract»

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  • Spectrum Utilization Problems

    Publication Year: 1977, Page(s):260 - 265
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1343 KB)

    This paper discusses various spectrum utilization problems, including the efficiency of spectrum use considered from the standpoint of communication theory. Mathematical modeling for spectrum efficiency is discussed for linear and nonlinear receiver models. Sharing problems between satellite and terrestrial relay systems are mentioned, and various solutions are discussed. View full abstract»

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  • Measures of Spectral Efficiency in Land Mobile Radio

    Publication Year: 1977, Page(s):266 - 268
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    Measures of spectral efficiency are very important to the resolution of contemporary issues in land mobile radio (LMR), because they a) allow the comparison of existing and proposed systems in terms of their spectral efficiency; b) permit estimates to be made of the ultimate capacity of various system types at different levels of development; and c) are useful in setting minimum standards for spec... View full abstract»

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  • On the Definition and Estimation of Spectrum Occupancy

    Publication Year: 1977, Page(s):269 - 280
    Cited by:  Papers (30)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2211 KB)

    Spectrum occupancy for channels and bands of similar channels is defmed. A distinction is made between transmission occupancy and message occupancy. The measurement time required to determine if a given channel is occupied is considered as well as the time required to estimate the degree of transmission occupancy with a given statistical confidence. Nonparametric (distribution-free) statistical te... View full abstract»

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  • Land-Mobile Radio Communication Channel Occupancy, Waiting Time, and Spectrum Saturation

    Publication Year: 1977, Page(s):281 - 284
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (713 KB)

    The operational utility of a shared land-mobile radio communication channel to any given user depends upon his waiting time to access the channel and the quality of the channel once it is available. This paper describes a method of obtaining waiting time estimates from measurements of channel occupancy made with a scanning receiver and discusses land mobile spectrum saturation in the context of wa... View full abstract»

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  • Measured VHF and UHF Signal Strength and Spectrum Occupancy Versus Antenna Height

    Publication Year: 1977, Page(s):284 - 291
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (997 KB)

    Results are presented of an antenna height-gain experiment performed by the FCC Spectrum Management Task Force in the Chicago Region at four different sites. Two bands, VHF and UHF, are analyzed for their signal strength and occupancy variation versus antenna height. These results are normalized to the system performance with a 12-ft-high antenna for comparison purposes. The normalized signal is c... View full abstract»

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Aims & Scope

IEEE Transactions on Electromagnetic Compatibility publishes original and significant contributions related to all disciplines of electromagnetic compatibility (EMC) and relevant methods to predict, assess and prevent electromagnetic interference (EMI) and increase device/product immunity.

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Meet Our Editors

Editor-in-Chief
Prof. Ing. Antonio Orlandi 
University of L'Aquila
Email: antonio.orlandi@univaq.it