Good morning all. New to radar detectors. I have a whistler CR 90. Manual that comes with it does not explain the way it reacts very much as to what the signals really mean. i.e. increasing numbers after the alert, door openers, traffic cams and so on. I have a general idea about them from watching what my son's detector did while he was here for a short visit recently. Is there a site that has this type of info.

John