Search Results

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

William A. Kissick, “The Coverages of the MF and VHF Maritime Distress Communication Systems,” Technical Report NTIA TR-80-52, October 1980

The radio coverage for two maritime distress communication systems are calculated for those U.S. Coast Guard stations in the contiguous United States. The two systems are: the international MF distress channel and the international VHF distress chann...

Vincent S. Lawrence and John D. Smilley, “RSMS Measurements Report: ASR-8 Radar Long Beach Municipal Airport,” Measurement Report, September 1980

This report contains emission spectra and pulse characteristics of the ASR-8 radar. The measurement data was collected as part of the federal frequency management program of the National Telecommunications and Information Administration (NTIA), and i...

B. Bulawka, “Spectrum resource assessment in the 902–928 MHz band,” Technical Report NTIA TR-80-46, September 1980

Gerald F. Hurt and Gordon A. Crandall III, “Spectrum Resource Assessment in the 1710–1850 MHz Band,” Technical Report NTIA TR-80-47, September 1980

This report describes the spectrum resource assessment of the 1710–1850 MHz band. The Phase I Report [Hurt and Crandall, 1980] provided information on frequency allocations, technical standards, spectrum usage, and identification of key spectrum mana...

Francis P. Flynn, “Spectrum resource assessment in the 2200-2300 MHz band,” Technical Report NTIA TR-80-48, September 1980

Spectrum resource assessment in the 2200-2300 MHz band, Sep. 1980

Eldon J. Haakinson, “Proposed Techniques for Adding FM Broadcast Stations in a Major Market,” Technical Report NTIA TR-80-44, August 1980

A study was conducted to investigate the technical capacity of the FM broadcast spectrum and to determine if the FM spectrum's utilization could be increased. More assignments are possible if some or all of the following recommendations are adopted: ...

Harold T. Dougherty, “A Consolidated Model for UHF/SHF Telecommunication Links Between Earth and Synchronous Satellites,” Technical Report NTIA TR-80-45, August 1980

The radio wave propagation path between an earth station and a synchronous satellite 1s described by engineering-type formulas which consolidate all of the known external elements significant for system performance. This UHF/SHF consolidated model, a...

M. E. Johnson and G. D. Gierhart, “An Atlas of Basic Transmission Loss For 0.125 to 15.5 GHz,” Sponsor Report FAA-RD-80-1, August 1980

This report provides an atlas of air/ground and air/air basic transmission loss predictions made with the IF-77 (ITS-FAA-1977) propagation model. Sets of predictions are provided for each of six frequencies; i.e., 0.125, 0.3, 1.2, 5.1, 9.4, and 15.5...

David Middleton, “Threshold Signal Reception in Electromagnetic Interference Environments: Part 1, Problems and Approaches,” Contractor Report NTIA CR-80-8, July 1980

Interagency Task Force on Biological Effects of Nonionizing EM Radiation, “Nonionizing Electromagnetic Radiation Safety: A Program of Coordinated Federal Activities Related to Biological Effects of Nonionizing Electromagnetic Radiation (0-300 GHz),” Special Publication NTIA SP-80-7, June 1980

Arthur A. Bushkin and Jane H. Yurow, “The Foundations of United States Information Policy: A United States Government Submission to the High-Level Conference on Information, Computer, and Communications Policy – Organization for Economic Cooperation and Development October 6–8, 1980 Paris, France ,” Special Publication NTIA SP-80-8, June 1980

A nation’s international information policies do not exist in a vacuum, but rather are an extension of its domestic information policy perspectives. Thus, before any nation can adequately represent the interests of its own society in international fo...

Randolph H. Ott et al., “Fading Statistics on a 23 km Link at 9.6 and 28.8 GHz,” Technical Report NTIA TR-80-40, June 1980

An experimental study of atmospheric multipath on a 23 km link at 9.6 and 28.8 GHz near Boulder, Colorado, is described. The preliminary observations were made for three days in July 1979 when a strong inversion layer was present, creating an elevate...

Leslie A. Berry, “Comparisons of Analytical and Numerical Calculations of Communications Probability,” Technical Report NTIA TR-80-41, June 1980

Middleton's analytical formula for the probability of communications in a land mobile environment and Berry's computer program for probabilistic calculations of interference are shown to produce identical answers for identical inputs. The assumptions...

Margo PoKempner, “Comparison of Available Methods for Predicting Medium Frequency Sky-Wave Field Strengths,” Technical Report NTIA TR-80-42, June 1980

The chronological development of the available methods for predicting medium frequency sky–wave strengths is presented with a brief discussion of each method. Measured field strengths for 36 medium frequency sky–wave paths are compared with the predi...

William J. Hartman, “Measurement of the Effect of Vehicle Ignition Noise on Land-Mobile Voice Channels,” Technical Report NTIA TR-80-43, June 1980

Measurements of the voice intelligibility over landmobile systems in the presence of vehicle noise are presented. These are compared with several statistical noise parameters obtained from measured amplitude probability distributions.

David Middleton, “A Tutorial Review of the New EMI Models and Their Effects on Receiver Performance,” Contractor Report NTIA CR-80-7, May 1980

Arthur C. Stewart and John B. Heffelfinger, “Effect of Small Frequency Changes on the Radiation Patterns of MF (AM) Directional Antennas,” Technical Report NTIA TR-80-39, May 1980

The pressure to provide additional full-time facilities in the AM (standard broadcasting) band in the United States resulted in a rulemaking petition filed with the Federal Communications Commission (FCC) by the National Telecommunications and Inform...

Herbert H. Schenck, “1980 World's Submarine Telephone Cable Systems,” Contractor Report NTIA CR-80-6, May 1980

This report provides detailed technical, cost and ownership information on all of the commercial underseas telephone cable systems in the world that contains at least one submerged electronic amplifier (repeater) and were in operation as of the end ...

Kim E. Degnan and Raymond Gallagher, “Directory of Federal Telecommunications Agencies,” Special Publication NTIA SP-80-6, April 1980

Robert F. Linfield, Martin Nesenbergs, and Peter M. McManamon, “Command Post/Signal Center Bus Distribution System Concept Design,” Technical Report NTIA TR-80-36, April 1980

The communications network structures currently used to interconnect terminal clusters and switching nodes within an Army tactical command post and area signal center are reviewed. With this background, five alternative structures are defined in term...