Using cell phones: Let's see, 150 of 300 passengers have their phones on, with about 0.6W each (is this correct ? - assume the cell repeater is not ok and power feedback fails) in the body of the plane which reflects and conducts this rfi towards/through/into aircraft systems some of which are 30 years old. Peter _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist