January 1990 | Measurement Report NTIA RSMS Operations Report

Analysis of Selected Government Spectrum Usage During the 1989 Presidential Inauguration

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John J. Sell and Gary Gierhart

Abstract: Measurements of Federal land mobile usage, in selected mobile bands, relating to the 1989 Presidential inauguration were made using NTIA’s RSMS Van to assess Government communications requirements for a special event of national importance. This report presents the results of analyzing the band usage data. Three bands, 138–150.8 MHz (with the exception of the 144–148 MHz segment), 162.0125–174 MHz and 406.1–420 MHz had channels designated for communications relating to inaugural events. Increased usage coinciding with the time of the President’s inauguration was measured for the 138–150.8 MHz and 162–174 MHz bands. An important consideration in evaluating the results presented in this report is that they are representative of communications carried out for a planned event that proceeded according to schedule with no disruptions. Consequently, the results do not provide information on communications requirements during an emergency. The report concludes that the inaugural measurements will provide useful information on the Government’s communications requirements for a special event. Additional measurements are desirable, including during an actual emergency period to provide a more complete understanding of the Government’s RF spectrum requirements for dealing with extraordinary events.

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Disclaimer:

Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

For questions or information on this or any other NTIA scientific publication, contact the ITS Publications Office at ITSinfo@ntia.gov or 303-497-3572.

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