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-- Visor switching on when mobile rings (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=3084)

My Visor and my mobile phone were lying next to each other. My mobile phone starts ringing and I've seen my Visor switching on. This seems strange to me. Somebody knows how it comes ?

When cellular phones are called, the phone receives a signal from the tower that a call is coming in. The phone then sends out a high power transmittion to establish a "connection" with the tower. If you have a radio nearby, you will often here noise in the background just before you phone rings. This even happens when talking on a landline. In fact, I can tell the other party that I have another call even before my mobile rings! I imagine that there is just enough electrical noise generated in the visor's circuitry to "wake" it up!

Superstream