collecting data of Aps around campus

• turn on my PDA with Wifi and bluetooth enabled.
• trun on my bluetooth GPS
  
• start to walk around the campus and search APs. Navizon will collect the data.
• after a circle of walk(409 APs located)
  
• back home, sync with my computer(some APs are showing in my Coverage)
  
• I can locate and upload my position in the campus without GPS