The primary effects, as noted, relate to signal acquisition and data error rates. These translate into operational problems in greatly increased activity through the data network because of synchronization and error effects. The combination of error problems and increase in range net activity would reduce the capability to support simultaneous missions. It is particularly important to consider this apsect in engagement evaluation where numerous remote-controlled facilities may be involved and delays in communication events would represent an unacceptable experimental bias. Since such engagements generally involve event-related decision trees, the validity of most multiple vehicle experiments would be unacceptable. These comments are qualitatively correct on the basis of the deployment of command/control and instrumentation equipment, the magnitude of the SPS interference, and previous histories at other test ranges where an EMC situation caused similar compromises in instrumentation and network performance. 4.1.6.2 Operational Systems The China Lake range generally evaluates weapons systems performance and operational engagements. The latter includes, for example, delivering of ordnance on the collection of surveillance data in the presence of a simulated hostile environment. These tests, therefore, are very dependent upon the EM support systems such as radar, command/control, and sensors. Considering the frequency range of military operational equipment employed for tactical aircraft, and the aperture of electro-optical devices supporting tactical emissions, the SPS power densities would eliminate effective testing except for very short ranges of deployment. Modifications to tactical equipment to accommodate the SPS are not possible because of the compromises and biases. A representative surveillance and weapons delivery time line includes egress route command/control, reference point identification, entry maneuvers with radar and EW-scanner operations, penetration command/control, target entry communications, sensor search and track, weapons control or surveillance search operations, and regress communications. For multiple aircraft, for example, the previously cited command/control network activity increase represents severe constraints on the number of vehicles that can be supported
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