Quote:
Originally Posted by Banshee
That is NOT correct! Radar is used in 90% or more of all municipalities and the least expensive and very accurate. RADAR measures speed by Doppler shift, LIDAR calculates speed.
Pacing is also mentioned. Speedometers are certified calibrated and dead nuts accurate.
VASCAR is a set length over a certain time to calculate speed.
So, if an officer has RADAR, the doppler shift is capable to be utilized fore, aft, both or moving.
While in motion, the RADAR unit calculates the speed of the patrol vehicle against the forward progress of the target vehicle and speed is determined. Units MUST be calibrated and I usually calibrate mine beginning of day, whenever I write a ticket, and at end of day.
A Google search would have clarified the misconception of what is known and what is percieved to be known.
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You sound like my buddy. lol
He's a Trooper here in Bama. Nice info.
