Question
 

Driving tonight and saw 2 polices each holding a radar gun (I assume).
What's the purpose of 2 polices holding 2 radar guns? Shouldn't 1 be enough? :suspicious:

...Why do you care?

curiosity

Maybe because they both wanted to be able to track more than 1 vehicle at a time...instead of taking turns....or maybe because they wanted to monitor speeds from different directions from the same position? Very common to do in stationary operations. I also used to work operations where we used both Laser & Radar.

Or perhaps they thought one of the guns wasn't calibrated and were checking it? Or is their an actual procedure for that? Zulu?

Calibration for a radar gun is usually by hitting a metal prong that vibrates at a frequency of I think 66.4 MPH IIRC and then pointing the gun at the prong and it should read the same. That's for a stalker radar gun but not sure if the police use the same. I'm assuming they do as they're probably the most used radar guns out.

Zulu can correct me but I assume lasers are on a tripod and radars are handheld?

By tripod do you mean sharks?

Calibration is done by the manufacturer's service centre when the Radar is defective. Testing the speed reading & display ability is done with tuning forks that are tuned to display a pre-determined speed. They are struck so that they vibrate & then held in front of the antenna. The early Lasers like the LTI 20-20 came with tripods but could be hand held by the pistol grip. Later ones mostly came as hand held but could also be used on a tripod. The tripod steadies the Laser & that gives a quicker speed display.