Today I was running the Redline, using the Expert Meter. We came up toward a construction zone about 1 mile away. The Redline starts showing Ka, then 2 Ka signals. Then a K. Somewhere in there it said "multiple signals detected". Then a 2nd K band.
What was happening was there were 2 Troopers at the construction zone, one on each side of the highway. Both had their front and rear antennas on. It was neat to see the relative strengths go up and down as I approached and passed.