:?: Just received my new NavAlert, plugged it in and drove north on 44th Street in Paradise Valley, AZ. Came to a camera at the intersection at 44th Street and McDonald Drive, unit notified me of the camera and the 40 mph PSL at that intersection, continued north about a 1/2 mile to the next camera at the intersection of Tatum Blvd. and Lincoln Drive, no camera warning from the unit (there is a red light-speed light there), made a left turn at the light and traveled west on Lincoln Drive when the unit warned me of a camera ahead but now the camera was behind me and there was nothing but clear road ahead. Very interesting.