Originally Posted by
MEM-TEK
Exactly. Whistler's high end RDs have a sneaky built-in filtering algorith which cause them to ignore very weak pairs of K band signals which have very similar frequencies. This filtering algorithm correctly assumes that these weak signals are false alerts from K band door openers as long as their signal strengths are weak and of similar intensity. Its a slick little bit of code which helps to make Whistlers quieter when driving around town, and its why I tend to recommend Whistlers for people who do mostly city driving and who are on a tight budget. As far as I am aware, this filter is active even if a Whistler is in Highway mode, but I could be wrong.
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