Search Results

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

Clark C. Watterson, “HF Channel-Simulator Measurements on the KY-879P FSK Burst-Communication Modem-Set 1,” Contractor Report NTIA CR-81-13, August 1981

William J. Hartman, “A Critique of Some Public-Key Cryptosystems,” Technical Report NTIA TR-81-79, August 1981

Several of the public-key cryptosystems that received considerable publicity are examined. The uses, implementation, and potential cryptoanalytic attacks are discussed. Since most of the suggested systems depend on the manipulation of large numbers, ...

Robert J. Matheson, John D. Smilley, and Vincent S. Lawrence, “S-Band Radar Pulse Densities in the Los Angeles Area,” Sponsor Report DOT/FAA/RD-82/17, August 1981

This report contains results of spectrum occupancy measurements made of the 2700–3100 MHz radar bands in the Los Angeles, CA, area. Approximately 500 sets of measurements were made, which included peak pulse amplitude, as well as the number of pulse...

Eldon J. Haakinson, “Proposed Techniques for Adding FM Broadcast Stations in a Major Market, Part 2,” Technical Report NTIA TR-81-77, July 1981

This is a companion document to another NTIA Report, "Proposed Techniques for Adding FM Broadcast Stations in a Major Market." Increasing the number of assignments is possible if: 1) co–siting of second– and third–adjacent–channel transmitters is ...

William B. Grant, E. L. Morrison, and John R. Juroshek, “Effects of the Satellite Power System on Low Earth Orbit and Geosynchronous Satellites,” Technical Report NTIA TR-81-75, June 1981

The large amount of power contained in the main beam and principal sidelobes of the proposed Solar Power System (SPS), now under study by DOE and NASA, potentially presents an EMC problem for other satellite systems. This report examines selected geo...

E. L. Morrison, William B. Grant, and Evan J. Dutton, “Electromagnetic Compatibility Analysis for a Satellite Power System Receivlnq Site in the Mojave Desert,” Technical Report NTIA TR-81-76, June 1981

The Department of Energy (DOE), along with the National Aeronautics and Space Administration (NASA), has been evaluating the Satellite Power System (SPS) as a source of baseline electrical power. The objective of the SPS program is to develop an ini...

Victor C. Walling, Donn B. Parker, and Charles C. Wood, “Impacts of Federal Policy Options for Nonmilitary Cryptography,” Contractor Report NTIA-CR-81-10, June 1981

A study accomplished by SRI International under contract with the Commerce Dept., NTIA, in support of work toward developing a U.S. policy for cryptography. It provides an analysis of the policy options based on a projection of evolving I private sec...

This monograph is distinguished by the use of plane-wave spectra for the representation of fields in space and by the consideration of antenna-antenna (and antenna-scatterer) interactions at arbitrary separation distances. The plane-wave representat...

Microwave Radiation at the U.S. Embassy in Moscow and its Biological Implications: An Assessment

Joseph E. Farrow and Laurance G. Hause, “Recommendations for Digital Radio Common Tactical/Long–Haul Standards,” Technical Report NTIA TR-81-74, May 1981

This report is the sum of a three–part effort by the Institute for Telecommunication Sciences (ITS) to provide technical recommendations for the DCS Long–Haul Tactical Common system, subsystem, and equipment technical standards for digital radio. The...

R. H. Fleming, “Final Report: The NTIA rural communities field studies,” Technical Report NTIA TR-81-71, April 1981

Final Report The NTIA rural communities field studies, April 1981

Trade Issues in Telecommunications and Information: Volume I. United States Trade in the Merchandise of Information Industries

Trade Issues in Telecommunications and Information: Volume II. The Employment Effects of Trade in High-Technology Telecommunications and Information Products

Trade Issues in Telecommunications and Information: Volume III. Promoting U.S. Trade in Telecommunications and Information Products with Developing Countries

Trade Issues in Telecommunications and Information: Volume IV. The Role of the United States Government in the Financing of Exports of Major Telecommunications and Information Products

Guidelines for interconnection to the United States Postal Service (USPS) Electronic Computer Originated Mail (E-COM) System via telecommunications carriers are developed. Adescription of the E-COM System is given and the need for telecommunications ...

Kim E. Degnan, Kenneth R. Dunmore, and Vincent Sardella, “Direct Broadcast Satellites: Policies, Prospects and Potential Competition,” Special Publication NTIA SP-81-11, March 1981

Charles J. Chilton, “Wave Interaction Observations of Ionospheric Modification in the D-Region,” Technical Report NTIA TR-81-66, March 1981

Radio wave interaction measurements using the high power transmitter at Platteville have resulted in cross modulation of up to 30% as compared to the earlier cross modulation measurements of 7% or less at low power. A theory is derived which shows th...

J. G. Williams, “Domestic Interconnection Arrangements for Datel Services,” Technical Report NTIA TR-81-67, March 1981

The International Record Carriers have, for a number of years, provided a switched, overseas, voiceband data service called Datel. This report examines changes required in the Bell/Independent domestic MTS network to provide a more advanced form of i...

Raymond D. Jennings, “Television Field Strength and Home Receiving System Gain Measurements in Northern IIIinois,” Technical Report NTIA TR-81-68, March 1981

Throughout an area between Chicago and Peoria, Illinois, approximately 50 measurement locations were selected. At each location measurements were made, typically, for two VHF television broadcasts from Chicago and three UHF television broadcasts from...