ALP LTI Truspeed False?

[radargeek]

Oh really? I couldn't say for sure they don't have them in that city, but wouldn't they be pointed at the rear of vehicles to capture plate as well? And also any idea why my Pro 500 didn't alert?

Do you know if the ALP alerted front or rear (assuming you have rear heads)?

Sometimes pole mounted guns are used as traffic light sensors or part of an RLC system, and those typically shoot the front of the car (the camera would shoot the rear from a different location).

Your Pro 500 didn't alert because it didn't see the signal. Windshield mounted RDs aren't very reliable at detecting lidar, unless it's a V1, and even those can miss sometimes. That's why the ALP exists.

The ALP almost never falses. It only alerts to specific pulse rates by known guns. The Truspeed uses a very specific and unique pulse rate (200.3 pps) so it's not likely that something else would be emitting pulses at that exact rate. There's also the Truspeed S which is 4000 pps. Something other than a lidar gun is more likely to use that pulse rate than 200.3, but unless you have the Bluetooth and app or a HiFi control set, you won't know if it was a TS or a TSS.

P.S. I remember a year or two ago someone posting a video of an encounter with a Truspeed S mounted inside a fake electrical box and placed on the side of the road, and monitored remotely by a LEO in a vehicle parked a few hundred feet away. I vaguely recall it being in Canada but I don't know if it was in Alberta. Maybe that's what you encountered?