Search Results

The search returned 1,243 publication(s) on its.ntia.gov.

Robert J. Mayher and John K. Lady, “Evaluation of Computer-Aided Spectrum Management in Venezuela,” Technical Memorandum NTIA TM-85-111, April 1985

This evaluation consisted of an on-site visit to the Ministerio de Transporte y Comunicaciones (MTC) in Venezuela in November 1984 and subsequent discussion between the representatives of the MTC and National Telecommunications and Information Admini...

Arthur D. Spaulding and James S. Washburn, “Atmospheric Radio Noise: Worldwide Levels and Other Characteristics,” Technical Report NTIA TR-85-173, April 1985

The determination of radio communication system performance is a matter of proper statistical treatment of both the desired signal and the real-world noise (or interference) processes. System performance is highly dependent on the detailed statistica...

Donald V. Glen, “Local Network Assessment,” Technical Report NTIA TR-85-174, April 1985

Local networks, related standards activities of the Institute of Electrical and Electronics Engineers (IEEE) Project 802, the American National Standards Institute (ANSI), and other elements are presented. These elements include 1) technology choices...

Ray E. Thompson, William B. Grant, and John C. Carroll, “Spectrum Resource Assessment of the 1605–2000 kHz Band,” Technical Report NTIA TR-85-175, April 1985

This report is a spectrum resource assessment of the 1605–2000 kHz band. It includes information on rules, regulations, allocations, technical standards, frequency assignments, system characteristics, and applicable compatibility analyses pertinent t...

Price Waterhouse, “U.S. International Information Services,” Contractor Report NTIA CR-85-32, March 1985

Technology Analysis Group, Inc., “Telecommunications Policies in Ten Countries: Prospects for Future Competitive Access,” Contractor Report NTIA CR-85-33, March 1985

Hans J. Liebe et al., “Millimeter-Wave Propagation in Moist Air: Model Versus Path Data,” Technical Report NTIA TR-85-171, March 1985

A practical atmospheric millimeter-wave propagation model (MPM) is updated and tested with experimental data from horizontal, line–of–sight links when there is no precipitation. The MPM computer program predicts attenuation and delay properties of mo...

Terry Monroe and Robert Entman, “Summary of state telephone regulatory data,” Technical Report NTIA TR-85-172, March 1985

Robert J. Mayher, John K. Lady, and Carl A. Winkler, “Evaluation of Computer-Aided Spectrum Management in Papua New Guinea ,” Technical Memorandum NTIA TM-85-109, February 1985

This report evaluates the spectrum management structure in Papua New Guinea (PNG) and recommends methods to improve spectrum management procedures and computer-aided techniques used by PNG. This evaluation consisted of an on-site visit to the Post a...

David J. Cohen, “Necessary Bandwidth and Spectral Properties of Digital Modulation,” Technical Report NTIA TR-84-168, February 1985

The National Telecommunications and Information Administration (NTIA) and the Interdepartment Radio Advisory Committee (IRAC) require, for their management of the spectrum, technical guidance concerning the necessary bandwidth and spectral character...

“FY 1984 Technical Progress Report,” Technical Progress Report, January 1985

The Institute for Telecommunication Sciences (ITS) is the research and engineering laboratory of the National Telecommunications and Information Administration (NTIA) of the U.S. Department of Commerce (DOC). ITS provides technical support to NTIA in...

William E. Frazier, “Handbook of Radio Wave Propagation Loss (100–10,000 MHz),” Handbook NTIA HB-84-165, December 1984

This handbook is intended to assist in manual analysis techniques that must be used when an automated analysis is not possible. It provides estimates of radio wave propagation loss between transmitting and receiving antennas above the assumed smooth...

D. M. Cerni, “Standards in Process: Foundations and Profiles of ISDN and OSI Studies,” Technical Report NTIA TR-84-170, December 1984

Telecommunication and computer technologies are merging, stimulating such global communication projects as the Integrated Services Digital Network (ISDN) and the Open Systems Interconnection (OSI) Reference Model. The systems of standards needed to ...

John M. Harman and Raymond D. Jennings, “Earth Station Antenna Sidelobe Characteristics,” Technical Report NTIA TR-84-164, December 1984

Measured analog data showing gain as a function of angle away from the mainbeam (maximum gain) axis have been obtained for 22 types of reflector antennas designed for operation at 4 GHz for reception and 6 GHz for transmission. The antennas ranged in...

B. Bulawka, Norbert Schroeder, and Karl B. Nebbia, “Spectrum resource assessment of unlicensed electronic devices,” Technical Report NTIA TR-84-166, December 1984

Andrew Farrar, Fredrick Wentland, and Herb Dobson, “Evaluation techniques for fixed-service systems to power line carriers,” Technical Report NTIA TR-84-167, December 1984

Evan J. Dutton and Francis K. Steele, “Some Further Aspects of the Influence of Raindrop–Size Distributions on Millimeter–Wave Propagation,” Technical Report NTIA TR-84-169, December 1984

In the presence of rain, millimeter–wave propagation is acutely sensitive to the distribution of raindrop sizes along a given propagation link. This report analyzes the variability of rain attenuation prediction at microwave/millimeter wave frequenci...

David Middleton, “Predicting the Effects of Non-Gaussian Interference in HF Broadcasting: 1. A Methodology for an Analytic Approach,” Contractor Report NTIA CR-84-30, November 1984

Herbert H. Schenck and Leo Waldrick, “1984 World’s Submarine Telephone Cable Systems,” Contractor Report NTIA CR-84-31, November 1984

Although many listings of submarine telephone cable systems existed prior to 1975, none was sufficiently extensive nor authoritative to serve as a reference work for those interested in the role of submarine telephone cables in the world’s telecommu...

Hiroshi Akima, “Polarization Angles of Linearly Polarized Antennas and Radio Waves in Satellite Communications,” Technical Report NTIA TR-84-163, October 1984

Calculating the polarization angles of antennas and radio waves is necessary for analyzing the mutual interference when a linearly polarized emission is used in satellite communications. A method for calculating the polarization angle has been develo...