There are several ways to open the Far Field Pattern Tab.
1. Click on the Plot Far Field button on the Sonnet task bar:
2. Select File - New Graph from the main menu in the Session tab.
3. Select Launch - Plot Far Field Pattern from the main menu of any other tab in your session.
4. Right-click on a project file in Windows explorer, then select ''Plot Far Field" from the pop-up menu which appears.