I have asked 3 experienced members here with no respones so maybe here has the answer?
Well after some research I found what I was asking about and is it possible this a brand new threat in the US I have run into?
Its called the Ramet AD9 ka gun and it looks like this:
Frequency: 34.0GHz or 34.3GHz ±0.1GHz [Ka-band]
Output power: typical 0.3mW [Ramer-7: 0.5mW], max 2mW
Radar beam angle [with respect to the road/direction of travel]: 22°
Max range: 60m
Measured speed: 5km/h – 300km/h
Accuracy: ±3km/h; over 100km/h ±3% [guaranteed for speeds 20km/h - 250km/h]
How can it be used: stationary or mobile - approaching vehicles, receding vehicles, both directions together [auto recognition]
Technology: constant ON only
Can be built in cars, on tripod or stationary box. AD9 version also has a pasive mode [i.e. can be used as Interceptor cars; "Presretaci" in Croatia or Ge
sig but own speed is taken from a calibrated speedometer NOT GPS!]
If during the measurement the measured vehicle's speed changes by more than 2km/h than the measurement can not be competed [e.g. rapid braking or fast lane change while in the beam ]
When the radar is in a mobile mode than in addition to above the patrol car needs to keep constant speed 1 second before, during and 1 second after measurement is completed. Max tolerance is ± 1km/h between each of these slots [so 1km/h + 1km/h = 2km/h in total for the partol car] otherwise the measurement can't be completed [all this of course only applies to active mode]