For the last few years when the mobile photo radar units were set up in the Grand Caravans, that older gen Ford Explorer, the F150's etc. the radar detector would always pick up on them before I got to/passed them. I can't remember if it was K or X band but I distinctly remember being alerted. However recently I've spotted a black Ford Explorer (newer gen) on Elbow, Macleod and Deerfoot and my detector is not picking anything up (both in the same direction and opposite direction). Are these things still radar based? K, Ka, X Band? Instant on? Anyone else have the same issue?
For the most part they are easy to spot but the one time I saw him on elbow he did a great job of blending in with other parked cars.