wireless interferences are unavoidable if the frequency or signal "accidentally" match with other equipments and equipments just follow the signal received and carry out the activities accordingly...

example like car remote control, i believe some of us know that we may accidentally unlock other cars alarm system by using our remote control if the frequency or signal are matched...

unless there have the licensed frequency or signal for each manufacturers of their products and definitely other manufacturers no allowed to use the licensed frequency or signal which no "owned" by them... otherwise all the manufacturers can use the any universal / public frequency or signal and for sure will interfere each others... so far as i know no such control or rules & regulation yet as no massive power transmit concerned which enough to effect sensitive equipments' operation...

This post has been edited by gkl83: Mar 1 2011, 03:44 PM