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Spectrum Engineering

NOTE: These reports are available either on-line in PDF (portable document) format or only as hard-copy. If you would like a copy of a report that is not available electronically, please make note of the document number and submit your request to:

NTIA Office of Spectrum Management
System Engineering and Analysis Division
Tel. (202) 482-2608
Fax (202) 482-4595
e-mail edrocella@ntia.doc.gov

Related content


Procedure for Calculating the Power Density of a Parabolic Circular Reflector Antenna

Report ID
TM 90-145
February 01, 1990
Abstract

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.

Hydrologic and Meteorological Operations in the 162-174 and 406.1-420 MHz Bands

Report ID
TR 90-259
March 01, 1990
Abstract

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.

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