To create a new project ID
1 Choose Analysis ➤ Project Settings.
2 Double-click the Project ID box, and type Prj-1.
3 In the Project Settings dialog box, click OK.
To add a survey
If you are importing long/lat survey data from an Excel spreadsheet, remove all headers from the columns.
Use this workflow when you tune the Predict propagation model for CAL values. You can perform all model tuning by using the Survey Manager.
1 In the Project Explorer, from the Category list, choose Operational Data if it is not already chosen.
2 In the Operational Data data window, right-click Survey Manager, and choose Import ➤ Excel.
The Open dialog box opens.
3 Choose the Planet EV Training\General\Surveys folder, and then choose the DTA_Model_Tuning_34_1.xls file.
4 Click Open.
5 In the Excel Import Parameters dialog box, click OK.
To set the antenna properties
1 In the Operational Data data window, right-click
DTA_Model_Tuning_34, and choose Properties.
The Properties dialog box opens.
2 In the General section, from the Type list, choose RSSI if it is not already chosen.
3 In the Survey Date box, type 12.10.03.
4 In the Antenna Information section, in the Name box, type default.
5 In the X/Long box, type -74.65475.
6 In the Y/Lat box, type 41.292416.
7 In the Height box, type 10.
8 In the Azimuth box, type 130.
9 In the Tilt box, type 0.
10 In the Power box, type 25.
11 Click OK.
To assign a survey to a sector 1 Do one of the following:
■ In the Project Explorer, click the Open a Data Window button if
two data windows are not already open.
■ If two data windows are open, continue with the next step. 2 In the second data window, from the Category list, choose Sites.
You need to input the above information only for text or Excel files. If you are working with DMS files, the antenna information will automatically be imported.
3 In the Sites data window, expand Groups, then expand Training, then expand Model_Tuning_34.
4 In the Operational Data data window, click DTA_Model_Tuning_34, and drag it to sector 1 in Model_Tuning_34.
5 In the Sites data window, expand Groups, then expand Training, then expand Model_Tuning_34.
6 Right-click the sector 1, and choose Assigned Surveys. The DTA_Model_Tuning_34 check box is enabled.
7 In the Assigned Surveys dialog box, click OK.
Once you assign a survey to a site, the survey node moves from the Survey RSSI (Invalid Header) to the Survey RSSI node.
To view the cumulative histogram of survey data points
The data in this dialog box is not editable.
1 Right-click DTA_Model_Tuning_34 and choose Analyze ➤ Histogram.
2 Enable the Show Points check box.
3 Click Close.
To view the clutter distribution
The data in this dialog box is not editable.
1 Right-click DTSite34_2, and choose Analyze ➤ Clutter Distribution.
The Survey Clutter Distribution dialog box opens.
2 Click Close.
If you want to filter your survey data by antenna discrimination or degrees from boresight, (see To filter the survey data, page 57) you must include values for Azimuth and Tilt.
To view the RSSI - distance regression curve
The data in this dialog box is not editable.
1 Right-click DTA_Model_Tuning_34, and choose Analyze ➤ Regression.
2 Click Close.
To average the survey data
1 In the Operational Data data window, expand Survey Manager, then expand Surveys RSSI, right-click DTA_Model_Tuning_34 and choose Analyze ➤ Average.
The Survey Averaging dialog box opens.
2 In the Averaging Method section, choose Area if it is not already chosen.
3 In the Rayleigh Fading box, type 6.1.
4 In the Averaging Distance box, type 15.
5 In the Survey Name box, type DTA34_1.
6 Click OK.
To filter the survey data
Planet EV provides you with a number of filters to remove outliers from your survey data that can skew your analysis results. You can choose to apply as many of the filters as you need.
You can also define two different ranges for a filter: for example, the RSSI filter, to view how the choice of filter range affects the number of points retained and removed.
Filter Type Range Description
Distance from FSL Coordinate X (Latitude) -90 to +90 Distance 0.4 km to 80 km (0.25 miles to 50 miles)
Retain points that fall within the distance from transmitter
RSSI -120 dBm to -40 dBm Retain points that fall within the RSSI range specified
Coordinate Y (Longitude)
In this exercise, you will filter for RSSI and Dist. from Regression Line.
1 Right-click DTA34_1, and choose Analyze ➤ Filter.
2 In the Survey Filtering dialog box, from the Graph Display list, choose Histogram if it is not already chosen.
3 In the Filter Type column, click the down arrow, and choose RSSI (dBm) from the list.
4 In the Minimum cell, type -118.
5 In the Maximum cell, type -50.
6 In the Filter Type column, click the down arrow, and choose Distance (km) from the list.
7 In the Minimum cell, type 0.5.
8 In the Maximum cell, type 9.
9 In the Filter Type column, click the down arrow, and choose Distance from Regression Line (km) from the list.
10 In the Minimum cell, type 0.
11 In the Maximum cell, type 15.
12 Click Apply.
The histogram shows the remaining data points and those that have been removed.
13 Click Save.
Antenna Discrimination
- 6 dB to 0 dB Retain points that fall within the antenna discrimination specified Dist.from Regression
Line (dB)
-40 dB to +40 dB Retain points that fall within the distance from regression line specified Deg. from Boresight -90 deg to +90 deg Retain points that fall
within the boresight specified
Line of Sight
Clutter class Remove or include a clutter class from the survey
# of Stds from Mean -3 sigma to +3 sigma Retain points that fall within the standard deviation specified
The Filtered Survey Name dialog box opens.
14 In the Survey Name box, type DTA34_2, and click OK.
15 In the Survey Filtering dialog box, click Close.
To choose the Predict propagation model
1 In the Operational Data window, expand Survey Manager, then expand Surveys RSSI, right-click DTA34_2, and choose Model
Tuning.
2 In the New Model Name box, type Predict2.
3 From the Model to Tune list, choose Predict.
4 Click Edit Tuner.
5 In the Clutter Absorption Loss Properties dialog box, from the
Number of Iterations list, choose 2, and click OK. 6 Click Edit Model.
The Propagation Model Editor dialog box opens.