Institute for Telecommunication Sciences

Abstract: These data provide the results of measurements made in March 1978 to determine the usage of Federal radio channels in the 225–400 MHz band at Norfolk, Virginia. These measurements were conducted as part of the National Telecommunications and Information Administration/ Spectrum Management Support Program (NTIA/SMSP) with the NTIA Radio Spectrum Measurement System (RSMS). The objectives for this effort were to (a) collect channel usage data for channels in the 225–400 MHz band; and (b) analyze the collected data to obtain spectrum usage statistics for each channel and various groups of channels. Brief discussions of measurement and analysis procedures are provided. Unprocessed measurements of channel usage and received power levels for each of the 320 channels measured in this band are given, as well as an overall usage summary, and graphs showing usage as a function of time-of-day.

Keywords: spectrum usage; radio spectrum measurement system (RSMS); received power; 225–400 MHz band

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.

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