Copies of these reports are available thru the NTIA Spectrum Engineering and Analysis Division, phone number (202)482-2608, fax number (202)482-4595, or e-mail edrocella@ntia.doc.gov
NTIA# TM-90-145 NTIS# IRAC# SECURITY=U February 1990 Kobayashi, Herbert Procedure for Calculating the Power Density of a Parabolic Circular Reflector Antenna This technical report details a procedure for calculating the mainbeam off-axis power density in the near- and far-field of a parabolic circular reflector antenna. In the report, the on-axis procedures of an earlier report are extended to off-axis analysis. Like its predecessors, it is intended for general use in system planning and evaluation and gives a worst-case estimate for radiation hazard assessment. _______________________________________________________________________ NTIA# TR-90-259 NTIS# IRAC# SECURITY=U March 1990 FREQUENCY RANGE (MHz)= 162-174 406.1-420 Filippi, Cesar Hydrologic and Meteorological Operations in the Patrick, Gary 162-174 and 406.1-420 MHz Bands Cerezo, Ernesto Wilson, Robert Use of Government and non Government flood warning systems in the 162-174 MHz band are growing rapidly in the US. The report investigated ways of improving the spectrum efficiency of these systems to allow for continued growth. Recommendations for narrowing channel widths and allotting certain channels for their use have been adopted. _______________________________________________________________________ NTIA# TR-90-260 NTIS# IRAC# SECURITY=U March 1990 FREQUENCY RANGE (MHz)= 3700-4200 5925-6425 Gawthrop, Philip E. Ground-Based Weather Radar Compatibility with Patrick, Gary M. Digital Radio-Relay Microwave Systems Interference from high powered weather radars to digital microwave systems is a growing problem in the US. The study identified procedures to avoid these problems. The study was completed in coordination with the FCC and industry. Recommendations dealing with exchange of data bases, coordination procedures and other technical areas have been adopted. _______________________________________________________________________ NTIA# SP 91-23 NTIS# IRAC# SECURITY=U February 1991 Maher, William F.,Jr U.S. Spectrum Management Policy: An Agenda for Parlow, Richard D. the Future Mayher, Robert J. et al. _______________________________________________________________________ NTIA# SP 91-25 NTIS# IRAC# SECURITY=U August 1991 Roosa,Jr., Paul C. Federal Spectrum Management: A Guide to the NTIA Process _______________________________________________________________________ NTIA# SP 91-26 NTIS# PB92-102482 IRAC# SECURITY=U October 1991 Sugrue, Thomas J. Telecommunications in the Age of Information Maher, William F. et al. _______________________________________________________________________ NTIA# TM-91-149 NTIS# IRAC# SECURITY=U April 1991 Steele, F. K. Measured Characteristics of Selected Non-Licensed Grant, W. B. Devices Frazier, W. E. _______________________________________________________________________ NTIA# TM-91-152 NTIS# IRAC# SECURITY=U December 1991 Nebbia, Karl B. Assessment of Technological Forecasting for Use in Spectrum Management _______________________________________________________________________ NTIA# TR-91-280 NTIS# IRAC# SECURITY=U September 1991 FREQUENCY RANGE (MHz)= 216-225 400.15-450 Patrick, Gary Assessment of Bands for Wind Profile Accommodation Richmond, Michael (216-225,400.15-406, and 410-450 MHz) _______________________________________________________________________ NTIA# TM-92-154 NTIS# IRAC# SECURITY=U January 1992 FREQUENCY RANGE (MHz)= 2300-2400 Filippi, Cesar A. Accommodation of Broadcast Satellite (Sound) and Hinkle, Robert L. Mobile Satellite Services in the 2300-2450 MHz Nebbia, Karl B. Band et al. _______________________________________________________________________ NTIA# TM-92-155 NTIS# IRAC# SECURITY=U May 1992 FREQUENCY RANGE (MHz)= 1-30,000 Kobayashi,Herbert K. Preliminary Building Attenuation Model Patrick, Gary _______________________________________________________________________ NTIA# TR-92-285 NTIS# IRAC# SECURITY=U March 1992 FREQUENCY RANGE (MHz)= 1710-1850 2200-2290 Cerezo, Ernesto A. Federal Spectrum Usage of the 1710-1850 and 2200-2290 MHz Bands _______________________________________________________________________ NTIA# TR-92-286 NTIS# IRAC# 27869 SECURITY=U August 1992 FREQUENCY RANGE (MHz)= 1710-1850 Hurt, Gerald F. Feasibility of Relocating Non-Government Fixed Gawthrop, Philip E. Systems into the 1710-1850 MHz Band _______________________________________________________________________ NTIA# TR-92-286 NTIS# IRAC# 27869 SECURITY=U August 1992 FREQUENCY RANGE (MHz)= 1710 1850 Hurt, Gerald F. Feasibility of Relocating Non-Government Fixed Gawthrop, Philip E. Systems into the 1710-1850 MHz Band _______________________________________________________________________ NTIA# NTIS# IRAC# SECURITY=U May 1993 Matheson, Robert J. ITS Staff Study - A Preliminary Look at Spectrum I Steele, F. Kenneth Requirements for the Fixed Services _______________________________________________________________________ NTIA# TM-93-158 NTIS# IRAC# SECURITY=U January 1993 Wentland, F. Evaluation of Spectrum Management in Nicaragua Smith, Richard Winkler, C. _______________________________________________________________________ NTIA# TR-93-294 NTIS# IRAC# SECURITY=U February 1993 FREQUENCY RANGE (MHz)= 902-928 2400-2500 Cerezo, E. Federal Government Spectrum Usage in the 902-928, Wilson, Robert 2400-2500 and 5725-5875 MHz Bands The Federal Government Spectrum Usage in the 902-928, 2400-2500 and 5725-5875 MHZ Bands report was released in February 1993. This report assesses the Federal Government spectrum usage of these three bands. Current rules and regulations, allocations, and major systems currently operating or planned for operation in each of the bands, as well as systems' deployments and some technical characteristics are identified. Major non- government application of special systems is also addressed whenever data is available. _______________________________________________________________________ NTIA# TR-93-298 NTIS# IRAC# SECURITY=U September 1993 Anderson, D. Digital Emission Spectrum Model Cohen, D. J. The Digital Emission Spectrum Model report was released in September 1993. A computer program was developed to calculate the power spectral density (PSD) and the fractional power containment bandwidth for various digital modulation techniques. The power containment capability was used to provide guidance for determination of necessary bandwidth in support of Annex J of the NTIA Manual. This report documents the models contained in the computer program and illustrates the models with various sample problems. The report also shows the verification of the computer program implementation. _______________________________________________________________________ NTIA# TR-93-300 NTIS# IRAC# 28436 SECURITY=U October 1993 Cohen, David J. Land Mobile Spectrum Efficiency - A Plan Roosa, P. for Federal Government Agencies to use More Matheson, R. Spectrum-Efficient Technologies et al. The Land Mobile Spectrum Efficiency - A Plan for Federal Government Agencies to use More Spectrum-Efficient Technologies report was released in October 1993. The IRAC established the Ad Hoc 210 committee to provide a forum for Federal Government agency member-representatives to present their views on telecommunication policies dealing with mobile systems. This committee provided extensive assistance to NTIA in the development of this study and plan. They described requirements of government departments and agencies for mobile radio communication services, and provided both technical and policy comments on the material drafted by NTIA technical staff. Their descriptions of technical requirements and discussions of the policy issues, and the practicality of implementing some of the proposals, contributed greatly to the initial draft of the study and plan. IRAC approved a draft of this study and plan based on the work of Ad Hoc 201. The study was then reviewed by NTIA, Department of Commerce and Congressional Senior Staff members. Their comments led to clarifications and amplifications of the proposed plan and procedures included in this report. _______________________________________________________________________ NTIA# SP-94-27 NTIS# IRAC# 28654 SECURITY=U February 1994 Hurt, G.F. Preliminary Spectrum Reallocation Report Cerezo, E. Response to Title VI - Omnibus Budget Drocella, E.F., Jr. Reconciliation Act of 1993 Scammon, C. The Preliminary Spectrum Reallocation Report was released on February 10, 1994. This report, prepared in response to Title VI of the Omnibus Budget Reconciliation Act of 1993, identified 235 MHZ of radio spectrum for transfer from Federal Government use to private, commercial use. The report marks the first step in a process that will lead the way to major changes in U.S. Management of the radio spectrum. _______________________________________________________________________ NTIA# TM-94-160 NTIS# IRAC# SECURITY=U January 1994 Speights, W.D. National Land Mobile Spectrum Requirements Cerezo, E. Orsulak, R. Wilson, R.C. The National Land Mobile Spectrum Requirements report was released in January 1994. This report describes the Federal Government's land mobile radio (LMR) usage and trends in the following bands: 30-50, 138-150.8, 162-174, 220-222 and 406.1-420 MHZ. It also presents public (common carriers such as cellular radiotelephone and radio paging), and private sector (including state and local government) uses from 25 MHZ to 1 GHz, related regulatory issues and trends in the land mobile services. The report also contains a discussion on personal communications services. _______________________________________________________________________ NTIA# TR-93-301 NTIS# IRAC# SECURITY=U March 1994 Law, Daniel (NOAA Special Report) Measurements of Wind Sanders, F. Profiler EMC Characteristics Patrick, Gary Richmond, M. The report, Measurements of Wind Profiler EMC Characteristics , was jointly prepared by NTIA and NOAA, Office of Oceanic and Atmospheric Research, Environmental Research Laboratories, Forecast Systems Laboratory, Boulder, CO, and released in March 1994. This report provides the results of measurements that were conducted on a 404.37 MHZ wind profiler located in Platteville, Colorado. In addition, the report presents a detailed wind profiler system description including operations/functions, system hardware, digital signal processing, as well as an analytical estimation of the interference effects on profiler performance. The information contained within the report can serve as an aid in conducting electromagnetic compatibility (EMC) analysis to determine compatibility between wind profilers and other systems. _______________________________________________________________________ NTIA# TR-94-311 NTIS# IRAC# SECURITY=U July 1994 Matheson, R.J. A Survey of Relative Spectrum Efficiency of Mobile Voice Communication Systems _______________________________________________________________________ NTIA# TR94-303-1 NTIS# IRAC# SECURITY=U March 1994 Gawthrop, P. Radio Spectrum Measurements of Individual Sanders, F. Microwave Ovens - Volume 1 Nebbia, K. Sell, J. TheRadio Spectrum Measurements of Individual Microwave Ovens report was released in March 1994, consisting of Volumes 1 and 2. This report provides results of radio spectrum measurements of 13 individual microwave ovens performed at the NTIA, Institute for Telecommunication Sciences (ITS). Measurements include emission characteristics and time waveforms covering the frequency range 2300-2600 MHZ and oven emission characteristics of harmonic frequency ranges up to the 7th harmonic. Test parameters were varied to identify their impact on test results. These parameter variations include such factors as cooking load, start temperature, oven orientation, and receiver bandwidth. Test procedures of the Federal Communications Commission (FCC), the International Special Committee on Radio Interference (CISPR), and additional procedures developed by NTIA and ITS are also discussed. _______________________________________________________________________ NTIA# TR94-303-2 NTIS# IRAC# SECURITY=U March 1994 Gawthrop, P. Radio Spectrum Measurements of Individual Sanders, F. Microwave Ovens - Volume 2 Nebbia, K. Sell, J. (See above description) _______________________________________________________________________ NTIA# TR94-313 NTIS# IRAC# SECURITY=U July 1994 FREQUENCY RANGE (MHz)= 4000 Sanders, F.H. Analysis of Electromagnetic Compatibility between Hinkle, R.L. Radar Stations and 4 GHz Fixed-Satellite Earth Ramsey, B.J. Stations The Analysis of Electromagnetic Compatibility between Radar Stations and 4-GHz Fixed-Satellite Earth Stations report was released in July 1994. In this report, the susceptibility of 3700- to 4200-MHZ fixed-satellite service earth stations to interference from radar signals, and the mechanisms by which such interference can occur, are examined. It is shown that interference can occur even if all currently applicable NTIA and FCC spectrum engineering requirements for radar emissions and earth station receiver systems are satisfied. It is further shown that while most interference problems can be resolved by installing appropriate radio frequency (RF) filtering on either the radar transmitter RF output or the earth stations RF input, determinations of the system that requires filtering depends critically upon the interference coupling mechanism. Methods for determining the interference coupling mechanisms are presented. _______________________________________________________________________NTIA #SP-95-32