Radio Spectrum Measurement System (RSMS) Program

RSMS Interference Studies Many interference studies have been performed with data collected by the RSMS. Examples have included: * Identification and evaluation of interference from airborne jammers to deep-space communication systems; Evaluation of potential interference from airborne radars to Justice Dept. mobile radio systems; Evaluation of system failures in inadequately engineered satellite earth station receivers due to out-of-band signals from high-power airborne radars (NTIA Report 94-313, Analysis of Electromagnetic Compatibility Between Radar Stations and 4 GHz Fixed-Satellite Earth Stations, Sanders, et al., July 1994.); Determination of compatibility contours for operation of Navy radars within the vicinity of satellite earth stations; Evaluation of background levels produced by microwave oven emissions in the 2300-2500 MHz portion of the spectrum (several publications, including TM-92-154, Accommodation of Broadcast Satellite (Sound) and Mobile Satellite Services in the 2300-2450 MHz Band, Filippi, et al., January 1992, and spectrum survey reports for Denver, San Diego, Los Angeles, and San Francisco, Sanders, et al.); Evaluation of compatibility between high-power radar signals and digital point-to-point microwave links (NTIA Report 90-260, Ground-Based Weather Radar Compatibility with Digital Radio-Relay Microwave Systems, Gawthrop and Patrick, March 1990); Various investigations of reported RF interference that have subsequently indicated that problems are occurring within the receiver systems concerned, and not external RF interference. * For copies of these reports contact Dr. Margaret A. Luebs, ITS Publication Officer, at 303-497-3572 or email at mluebs@its.bldrdoc.gov.

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