Measurement Analysis

It is often helpful to know how well your signal level predictions agree with measurements done in the field. You can perform such an analysis with your EDX software. If you have done a grid study showing predicted field strength, received power level values, or most of the other grid study names, you can use the measurement analysis feature to compare these predictions with measurement data stored in a data file. Select Studies>Measurement Analysis.

When the Measurement Analysis dialog box is displayed, enter the name of the file where the measurement data is stored on the first line, and then select the type of the measurement file on the second line. The measurement file types that can be selected are the same as the measurement file types that you can display. Refer to Appendix I for details. EDX measurement files can be set to contain a wide variety of measurement information whereas the measurement data from the other three sources is a fixed type of quantity. In order to get a valid comparison, the study data in the current grid file (the study to display) must have the same quantity and units as the data in the measurement file.

With these two data items entered, select the Perform Area Analysis button and the difference between the measurement data and the prediction data will be statistically analyzed and the results displayed in the lower Error analysis results section.

If you have CPE data, then you can compare the predicted signal level for the assigned server against the “measured signal” value that you have entered for each CPE, by pressing the Perform CPE Analysis button.