Just got a Pro-78SE. Been a while since I used a detector. I live in the Seattle area where we have (like most major cities) traffic cameras and you can go online to see the traffic flow for all the major freeways. I put the thing in City mode, then City 1 and then City 2 and was surprised how many times I was getting KA POP alerts with signal strengths in the 6-8 range (I realize City mode mainly reduces X band detection.) I'm the KA POP alerts are from the traffic cameras that not only shoot video but measure the speed of traffic. But I'm also concerned this is not normal for a good quality detector.
Oops, I just remembered I brought up the subject of POP detection in another thread and the consensus was to turn it off since no one is using it. Maybe this will get rid of those alerts otherwise all the alerts from the traffic monitors render the detector somewhat useless for quite a few miles of freeway around here.