So I'm going down my favorite stretch of interstate construction zone on my way out of town today and the X50 starts alerting on Ka (34.727 on the display). I'm pretty close to PSL anyway, but I give the tailgating SUV behind me a brake-check, put out the joint, throw the whiskey bottle out the window, etc.* in plenty of time to see a local police car playing state trooper on the interstate. Maybe 1-2/10s of a mile warning, which seemed like a decent amount of time and real estate to put my affairs in order.**
About the time I see him in the median, he is actually pulling out and ends up getting in the flow of traffic behind me. I'm not really worried, as 1) I wasn't going too fast and 2) he doesn't seem to be chasing, lighting up, etc. After 2-3 miles, it was apparent that he just decided to leave his spot and continue patrol or whatever it is that LEOs do when they're not writing tickets.
But the point is - he's apparently got a Ka unit and it stayed on the entire time he was behind me. I actually wondered if the idiot behind me in the SUV had a leaky RD and that wasn't the cause of the "alert" all along, but when the officer took off on an exit, the alert died off.
So - is running a Ka unit in C/O unusual, or does it happen all the time?
* I'm kidding
** If you're keeping stats on the X50 or any other RD, please be aware this is a rough estimate