Intra System Interference

Interference calculations carry the analysis down to the composite threshold degradation of the victim receivers due to multiple interferers. In conjunction with the Microwave Worksheet you can see the effect of the interference on outage times. Antenna data files are used to determine antenna discriminations. The radio data files are used to calculate the filter improvement (interference reduction factor). If threshold to interference (T-I) or interference reduction factor curves, are available for the victim - interferer combination, these will be used. Otherwise, the transmit spectrum of the interferer will be convoluted against the receive selectivity. If these are not available, default masks will be used.

The Network module is used to calculate intra system interference. The calculation is made only for the sites and links on visible layers.

Case Detail Report

This report shows a complete analysis for each interference case. All of the cases for each receiver are summarized and the composite threshold degradation is calculated. If an interference case is a OHLOSS candidate, the calculation can be carried out directly and the results are incorporated into the report. The radio and antenna data files used in the calculation can be displayed.

Summary and Cross Reference Reports

Two versions of a summary report are available. The cross reference report is indented as a navigation aid to the more comprehensive case detail report.

High-Low Violation Report

This report itemizes the frequencies used at each site and identifies any high-low violations in the frequency plan. The channel ID naming convention is used as the criteria for violation.

Last Update: 08/06/99