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WSPRnet CHARTING OVERVIEW - ORIGINAL METHOD
Step by step guide for exporting WSPRnet data to Microsoft Excel for charting for the original method.
Graphing a 24 hour history of WSPR pings from the WSPRnet database. This example is of the 630m band for a 24 hour period on the 22 August 2017. Note that the station that pings were received from were VK3HP, VK4YB and VK5ABN.

 

Open WSPRnet web page: http://wsprnet.org/drupal/ and click Database upper right of the WSPRnet screen.

 

 

The database will appear then click Specify query parameters then populate the Spot Database Query fields and click Update

 

The database will display all WSPR pings consistent with the Database Query. A maximum of 1000 only pings can be displayed, however if more data records are needed click Link to old database interface where a greater number of data records can be displayed. 

 

Highlight data fields to be copied and right click the mouse and click copy

Note: In the old data base display where there may be a much larger number of data fields to be copied, right click the mouse and click Select all. This approach will need a bit data clean up in either the text editor or in Microsoft Excel.

 

Open Notepad or similar text editor application and right click the mouse and click Paste as above. Save Notepad file in an easy to locate folder.

 

Open Microsoft Excel, then Open the saved Text file (.txt). The File name extension must be set to All Files (*.*) as above or set to Text Files (*.prn;*.txt;*.csv) to see and open the saved Text file.

 

The Text import Wizard will open as above.

 

Click Delimited radio button as above and click Next.

 

Tick Space as above and click Finish.

 

The WSPR data fields should now be displayed in Microsoft Excel as above.

 

Graphing; with the mouse select column B (UTC Time) then while pressing the Ctrl key select column E (Signal to Noise Ratio or SNR) as above.

Or instead of selecting whole column select with the mouse only the data fields of interest by the same technique.

 

Click the INSERT tab in the upper left of the Microsoft Excel screen and then select the Scatter Chart as above.

 

Displayed is a chart showing in the vertical column the SNR and in the horizontal row, the UTC time. The time column needs to be cleaned up to look more meaningful. Double click the horizontal time row and a box marked AXIS OPTIONS TEXT OPTIONS will appear as below.

 

Change the Maximum to 1.0 and the Units / Major to 0.0833333 as above.

 

The result is a chart showing 24 hours of UTC time in the horizontal and the SNR (Signal to Noise Ration) in the vertical column for station traffic as recorded by VK6YSF for 22 August 2017.

Note the drop in SNR from approximately 13:30UCT, that is VK4YB reducing his transmission power from 5.0W (+37dBm) to 0.5W (+27dBm)

 

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Page last revised 30 August 2017  
 

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