The SFO Near Live Flight Tracks webpage contains a Java "Applet" that shows live radar flight tracks. When the Applet loads (which could take anywhere from a few seconds to a minute, depending on the speed of your Internet connection), you should see a green, sweeping radar button (like the sample shown on the left). Once you click on this button, a separate window should appear that depicts a map of the airport area and surrounding region, and then images of aircraft should begin to appear and move along the map.

If the green button does not appear, or if it does appear but the map never appears, or if the map appears but you never see any aircraft, there could be one of several problems:

• Browser Not Java Enabled
  
  Some people disable Java capabilities within the browser for security reasons. Java applets are SAFE programs that run within the browser that can NOT access your local PCs resources (disk, printers, etc.)
  
  To see if Java is disabled in Internet Explorer: choose Tools, Internet Options, then choose the Security Tab. Click the Custom Level Button, then scroll down to Microsoft VM, Java permissions. This should be set to "High Safety":
  
  
  
  If it is set to "Custom" or "Disable Java", the Flight Track Applet will not run.
  
  To do the same in Netscape, choose Edit, Preferences, and click on Advanced. Make sure "Enable Java" is checked.
  
  
  
  
• Checking Status
  
  If the map appears but you do not see any flights on the screen, click on the "Help" menu and then click on "Status". This will give you more information about what could be wrong. A couple possibilities:
  
  
  • No Radar Data
    
    It is possible (although rare) that the radar feed can go down. In these cases, the map will display but it will not show any flights. It will keep trying to get flight data, and once the radar feed resumes it will begin showing flights again.
    
    The Help/Status window on the Map display will tell you if this is occuring.
    
    
  • Firewall Restriction
    
    The Flight Track Applet may not run if your PC is located behind a firewall. If you think your firewall is preventing you from running this applet, please contact your MIS department (or whomever is in charge of your firewall) and ask them to allow TCP/IP access to live.airportnetwork.com at port 7777.
    
    Again, the Help/Status window on the Map display will tell you if this is occuring.
    
    
• Still doesn't work?
  
  If you've verified the items above and the applet still does not work, please send email to:
  
        support@QuantumSI.com
  
  Please include a description of your problem and your phone number. Also, it would be VERY helpful if you could also copy-and-paste the contents of your browser's "Java Console". This is where error messages are placed when applets do not run properly, and it will greatly help us diagnose the problem.
  
  In Internet Explorer, the Java Console can be brought up by choosing View, Java Console. The Java Console will then appear where you can copy all the messages and place them in an email to us. NOTE: If you do NOT see a choice for "Java Console" in the View Menu, then your browser does not have the Java Console turned on. To enable the Java Console in Internet Explorer, choose Tools, Internet Options, click the Advanced Tab, and scroll down until you see the choice under Microsoft VM for Java console enabled (requires restart):
  
  
  
  Make sure this is checked, then restart Internet Explorer, go the Flight Tracks web page again, and bring up the Java Console.
  
  In Netscape, the Java Console is located under Communicator, Tools, Java Console.