Search Results

The search returned 1,237 publication(s) on its.ntia.gov.

K. J. Gamauf, “Revised Program FOOTPRINTS User’s Manual,” Technical Report NTIA TR-82-109, November 1982

This report describes use of the revised computer program FOOTPRINTS. The program automatically computes and plots earth footprints and service area polygons on a map projection of the earth's surface. The program can be used as a design tool to maxi...

D. B. Sarrazin, “Investigation of HF Propagation Conditions Associated with the Third High Energy Astrophysical Observatory Launch,” Technical Report NTIA TR-82-110, November 1982

The burning of an Atlas-Centaur rocket in the ionospheric F–region was used to determine the extent of HF propagation anomalies associated with the resultant drop in ionospheric electron content. This "ionospheric hole" grew to encompass the control ...

John E. Hershey, “Proposed Direct Sequence Spread Spectrum Voice Techniques for the Amateur Radio Service,” Technical Report NTIA TR-82-111, November 1982

General Docket 81-414, Notice of Inquiry and Proposed Rulemaking, proposes allowing the Amateur Radio Service to use spread spectrum techniques in three bands. This report reviews the Docket's proposals and the public's reaction, reviews direct seque...

David R. Wortendyke et al., “User-Oriented Performance Measurements of the ARPANET: The Testing of a Proposed Federal Standard,” Technical Report NTIA TR-82-112, November 1982

This report presents the results of a trial implementation of a newly developed data communication performance measurement methodology which has been proposed as Federal Standard 1043. In this experiment, a prototype data communication performance me...

H. M. Gates, E. J. Alberts, A. P. Zollinger, and H. D. Mead, “Modeling the Telephone Traffic for a National Forest,” Technical Report NTIA TR-82-113, November 1982

The Forest Service is in the process of updating its telecommunication and information systems. Included in this update are proposed changes to the telephone systems of selected National Forests with an eye toward telephone cost reductions over curre...

Leslie A. Berry, “User’s Guide for PRODSIR: A Procedure to Compute the Probability Distribution of Signal-to-Interference Ratio in Congested Radio Environments,” Technical Report NTIA TR-82-106, September 1982

PRODSIR is a procedure for computing the probability distribution of the signal-to-interference ratio in a congested radio environment. Most of the independent variables in the usual signal-to-interference equation are assumed to be random variables,...

Evan J. Dutton and Francis K. Steele, “Bibliography and Synopsis of Literature Concerned with Microwave and Millimeter Wave Propagation Effects,” Technical Report NTIA TR-82-107, September 1982

This report presents an extensive bibliography, categorized by effect, of radio propagation through the atmosphere, for the frequency region of 10 to 300 GHz. Preceding the bibliographic presentation is an article-by-article synopsis of that literatu...

H. M. Gates and D. A. Hill, “Technical Sharing Issues Between Broadcast-Satellite and Fixed Services,” Technical Report NTIA TR-82-105, August 1982

The Regional Administrative Radio Conference will be convened in 1983 for planning broadcasting-satellite service in the International Telecommunication Union Region 2 to resolve the issue of allocating orbital positions and radio frequencies in the...

William J. Hartman, “An Experimental Study of Monte Carlo Factoring Techniques,” Technical Report NTIA TR-82-104, July 1982

Pollard (1975) describes a "Monte Carlo" factoring algorithm based on iterating some specific quadratic polynomials. In this paper different polynomials are tested in the algorithm to see if a more efficient factoring can be obtained. The results are...

Arthur D. Spaulding, “Fading Signals in the MF Band,” Technical Report NTIA TR-82-102, June 1982

In the MF band, interfering signals from one or more broadcast stations can be received. During nighttime periods, this interference is caused by fading signals, propagated from distances of more than about 200 miles. It is the purpose of this report...

Donald V. Glen, “Integrated Services Digital Networks, Standards, and Related Technology,” Technical Report NTIA TR-82-103, June 1982

National and international work toward an Integrated Services Digital Network (ISDN) and the progress toward its implementation is described. Standards activity and technology relating to the ISDN, in the United States and abroad, are presented.

R. Alderich, “Privacy Protection Law in the U.S.,” Technical Report NTIA TR-82-98, May 1982

Privacy protection law in the U.S., May 1982

Science Information Services, Inc., “Biological Effects of Nonionizing Electromagnetic Radiation: A Digest of Current Literature October through December 1981 (Volume VI, Number 2),” Contractor Report NTIA CR-82-19, April 1982

Biological Effects of Nonionizing Electromagnetic Radiation is a publication researched and prepared by the Franklin Research Center, Science Information Services Organization, under contract with the U.S. Navy and administered by the National Telec...

George A. Hufford, Anita G. Longley, and William A. Kissick, “A Guide to the Use of the ITS Irregular Terrain Model in the Area Prediction Mode,” Technical Report NTIA TR-82-100, April 1982

The ITS model of radio propagation for frequencies between 20 MHz and 20 GHz (the Longley- Rice model) is a general purpose model that can be applied to a large variety of engineering problems. The model, which is based on electromagnetic theory and...

D. M. Cerni, “The CCITT: Organization, U.S. Participation, and Studies Toward the ISDN,” Technical Report NTIA TR-82-101, April 1982

The possibility of an Integrated Services Digital Network (ISDN) encircling the globe by the year 2000 is of increasing interest to the worldwide telecommunication community—developers, carriers, manufacturers, and users. Accelerating telecommunicat...

Science Information Services, Inc., “Biological Effects of Nonionizing Electromagnetic Radiation: A Digest of Current Literature October 1980 through June 1981 (Volume V, Numbers 2–4),” Contractor Report NTIA CR-82-16, February 1982

Biological Effects of Nonionizing Electromagnetic Radiation is a publication researched and prepared by the Franklin Research Center, Science Information Services Organization, under contract with the U.S. Navy and administered by the National Telec...

Arthur D. Spaulding, “Digital System Performance Software Utilizing Noise Measurement Data,” Technical Report NTIA TR-82-95, February 1982

This report summarizes techniques that use the measured instantaneous envelope statistics of arbitrary noise or interference processes to calculate the degradation these processes cause to digital communication systems. Computer implementation of the...

Hans J. Liebe, “Molecular Absorption Test at 35 GHz,” Technical Report NTIA TR-82-96, February 1982

This report describes a laboratory experiment which was conducted to find out if the absolute attenuation of a 35 GHz signal by the molecular species H2O2 (hydrogen peroxide), HNO3 (nitric acid), NO2 (nitrogen dioxide), N2O (nitrous oxide) exceeds a ...

Burgette A. Hart, A. M. Nave, A. W. Raskob Jr., and J. C. Thomason, “Telephone Areas Serviced by Bell and Independent Companies in the United States,” Technical Report NTIA TR-82-97, February 1982

The geographic coverage of all telephone companies in the United States is presented in a series of maps depicting the operating areas served by Bell and each of the various independent telephone companies. Tables are also presented of state-by-state...

Raymond D. Jennings, “Parametric Approach to Thin-Route Earth-Station Requirements,” Technical Report NTIA TR-82-99, January 1982

Satellite communications are likely to be used to provide thin–route telephone service in developing countries only if the cost of earth stations can be substantially reduced. A parametric analysis of earth–station design and service capabilities is ...