Coverage Module
 
An area coverage analysis requires a terrain data base. A completely  automated 3 step process is used to create area coverage and line of sight displays. 

Step 1 -generates the radial terrain profile data 

Step 2  -calculates the combined diffraction and tropospheric scatter loss and the vertical angles along each radial. 

Step 3 -specifies the radio and antenna  parameters, signal level criteria and the time and location variability constraints.
 
 
 
 
A calculation can be modified by returning to the appropriate step and changing the required parameters .The analysis considers the elevation angles on line of sight paths or the horizon angles on obstructed paths. Base station antennas can include mechanical down tilt.

The displays are presented as color coded radial lines or a solid color coded display. Both line of sight and signal level displays are available in either format.

Multi Site Area Coverage

Both line of sight and signal coverage calculations can be imported into the network display to analyze multi site coverage. These can be selectively switched on and off to determine their effectiveness in the site selection process. Each site coverage display can be set to show either signal coverage or line of sight.


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Last Update: 08/06/99