I've had my LI Dual installed since March or so and until this morning had yet to see any LIDAR in use. Coincidentally, I just finished installing a 9500ci a couple of weeks ago. So I decided to head in to work this morning to play a little catch up. As I was headed eastbound along a 4 lane divided highway I started to get a faint spike of Ka. I was running in Expert so didn't catch the frequency. As I continued east the spike got more intense until I eventually saw two LEOs parked nose to tail in the westbound lane, both facing west. As I passed them I saw one of the LEO's outside his car, kneeling down with what I assumed was a lidar gun. At about that time the westernmost LEO got in his car to chase down a speeder. By this time I was right at the PSL.
Despite my better judgement I really wanted to see if I could get hit with laser so I moved down the road a mile or so then turned around. Really strong Ka spike now (can't believe I forgot to switch to Spec mode) as I continued west towards the trap at the PSL (with the flow of right lane traffic). Just as the car in front unobscured the LEO still kneeling down, the LI siren started going off. Not wanting to be a jack***, I immediately killed the LI and continued westbound until I could turn around again.
My one regret (besides not noting the Ka freq) was killing the jammer before I heard what type of gun was in use. Oh well, next time. Now if only I could have pulled over and asked the LEO how the jammer worked... just kidding. I have yet to get them tested.