Abstract
Results presented in the report issue from four tasks undertaken for the FAA. These results contribute to the specification of a concept for a guidance system for approach and landing. The electromagnetic emitter environment is established for the 1975 time frame for the frequency bands, 5.0 to 5.25 GHz, 9.0 to 9.2 GHz, and 15.4 to 15.7 GHz. Possible interactions between a proposed guidance system located at John F. Kennedy International Airport and the 9.0 to 9.2 GHz band emitter/receiver environment are established. Estimates are made of the minimum number of separate channels required of a guidance system. Channel frequency separation requirements for a specific signal format/system deployment are also established.

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