Conclusion: The primary concern is the continued protection of the 36-37 GHz EESS (passive) allocation used by current and future microwave radiometers from the U.S. Air Force, Navy, NOAA, and NASA, which have been making space-borne observations near 37 GHz since Scanning Multichannel Microwave Radiometer was launch in 1978. Based upon scientific requirements expected to be achieved in 2008-2013, to protect EESS satellite observations from interference, ITU-R RS.1029 (2003) recommended a maximum interference level in the 36.0-37.0 GHz band of -246 dBW/Hz, with this interference level not to be exceeded for more than 0.1% of the sensor viewing area or measurement time.

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