View Single Post
      03-05-2018, 08:02 PM   #22
forza1976
Major General
forza1976's Avatar
United_States
3391
Rep
6,585
Posts

Drives: BMW
Join Date: Aug 2007
Location: 49417 and 60610

iTrader: (13)

Garage List
2022 BMW M3X  [10.00]
Quote:
Originally Posted by TheBusDriver View Post
The highlighted above in red is 100% incorrect information.

POP detection, detects (in theory) very quick burst of RADAR from very specific radar guns that have a POP feature built in to them. There are 2 types of POP, one being K band (specifically MPH Industries Z25 and Z35 guns which are pretty rare anyway) which transmits a very short 16 millisecond burst, or MPH Ka band guns that have the POP feature (tuned to 33.8GHz) which transmit a POP burst of 67 milliseconds.

Laser alerts detect LIDAR which transmits from police laser guns (and other sources) at a frequency of 905 nanometers.

Turning POP on/off does nothing to prevent laser/lidar alerts.

The most likely culprit is either the sun, or the hand gesture feature which apparently transmits its lidar signal from the roof panel down towards the center of the dash (and your windshield), where your detector picks up the lidar signal.

Fair enough, however I’ve had two cars that behaved this way and disabling pop solved the issue. Regardless of the said statement being 100% correct, it solved my issue without impacting detection performance.
Appreciate 0