The other day, while traveling up I95, I encountered C/O radar of 34.7. As the signal grew stronger, I noticed the MSP heading sb in the opposite direction. Then, the radar frequency changed to 35.5 and then it switched back to 34.7.
This has never happened to me before and I couldn't spot a secondary source for the 35.5 reading. Could it be possible that the state trooper had two separate radar guns in the patrol car, one for the front and one for the rear?