Problems in Obtaining a System Electromagnetic Compatibility (EMC) Figure of Merit (FOM)

A direct approach and a building-block approach for developing a system electromagnetic compatibility (EMC) figure of merit (FOM) are discussed. Each approach is based upon the channel denial concept, and a co-site environment is assumed. The direct approach requires the use of a computer program whereas the building-block approach permits the use of rather simple scoring formulas for selected EMC parameters with weighting functions for each parameter. Some of the problems basic system consisting are discussed, and some in deriving an EMC-FOM for a of a transmitter-receiver pair of the problems in extending the EMC-FOM to more complex systems are mentioned.