I've been playing around with my new STI Driver which carries revision A3M8.
We've all heard the "constant Ka falsing" issue from neighboring detectors, usually those of the cheapie variety.
So I took my Uniden LRD-9000W (approx 12 years old, falling apart, surely quite the leaky unit, metallic casing) and my Sensoro Alpha / PNI RX5000 (a little over a year and supposedly VG2 / Spectre I immune by means of shifted LO - plastic casing)
The STi Driver was placed in Highway mode throughout the test. All bands on all detectors are activated. The Uniden recieves only "Wideband" Ka. The STi Driver was mounted high in a Saab 900 3-door (no tinting). The other detectors were mounted in another Saab 900 3-door (no tinting) parked alongside. The detectors were thusly approx 1 metre apart, both facing forwards.
First - the Uniden.
With POP mode off (default), there was no falsing at all on the STI Driver. Similarly the Uniden remained quiet. With POP mode activated on the STI, surprisingly - there was still no alert from the STI.
Now - the Sensoro.
With POP mode off, no falsing. With POP on, also no falsing
I then used a phone extension cord to bring the STI right up to the Sensoro.
As you can see, both detectors are remaining silent and with no alert. The Sensoro is displaying a compass heading, while the STI is displaying the voltage of my electrical system of the other car. The STI is in Highway mode with POP ON.
I have tested my STI Driver with a Target RLT-500 laser/radar tester. The STI will alert to laser, though it is rather sketchy in reception. I dare say that the Sensoro may be more sensitive. However I have not experimented enough with the laser to be able to genuinely give an answer. On the radar front, the STI will alert to K band at 24.138 GHz indicated very consistently and from quite a distance. However the STI filters out the Ka band (supposedly at 34,3 GHz) from the tester, presumably due to detector-like harmonics from the unit. However if you press the K and Ka buttons simultaneously, the STI will consistently alert to Ka at 35.538 GHz.
A visual comparison of the STI Driver and Sensoro: