On a return trip from CO to MN I was able to compare the two against an X band speed sign, the K band signal around the Archway in NE, and Ka drones in a construction zone in NE. I would estimate the Uniden was about 75-80% as sensitive as the V1 in range.
Yes both were on at the same time, but I tried to separate them as much as possible, and there was no ďapparentĒ interference. The V1 sensitivity did not appear to be reduced. The V1 was windshield mounted below the RVM and the Uniden was hand held. The only interference I found was holding the Uniden directly behind the V1 rear antenna. The Uniden falsed Ka after a short period of time.
For X and K band the Uniden was compared to the V1 rear antenna. Unfortunately the source direction for those was either from behind or I guess blocked by the Archway. The Uniden was held facing the rearward in both cases out of the direct line of the V1. The comparison was from a full strength signal to when the detector reported no signal. For Ka the signal was from the front and compared to the V1 front antenna. Uniden was held near windshield on the left side of the car facing forward. Comparison was from the first report to full strength.
The V1 has 8 LEDís plus continuous tone (8+). The Uniden has 4 LEDís plus continuous tone (4+).
For X band the Uniden 1 LED was equal to about a 2/2-3 LEDís on the V1. For K band the Uniden 1 LED was equal to about 2-3 LEDís on the V1. For both bands the Uniden 2 LEDís were equal to roughly 4LEDís on the V1, the Uniden 3 LEDís were equal to a solid 6 LEDís on V1, and the ramp up was about the same to a continuous tone. When leaving the signal source the V1 did show 1-2 LEDís for a short while, when the Uniden was silent. I estimated the distance the Uniden was silent while V1 still reported to be about 20-25% of the total distance traveled, which in both cases was around 1 mile. (Though I donít remember the actual distance, it was late at night, and I didnít write it down).
The Ka comparison rather sucked. There was some traffic and workers so my eyes were on road and RDís in the peripheral vision. I didnít get the distances. I also dealt with the Uniden Ka falsing while approaching the first drone, and wasnít entirely set with it off to the left when I approached the 2nd drone. But for both the 2nd and 3rd drones the results were similar. The V1 picked up a solid signal much sooner and ramped from 1-8+ just fine. The Uniden was intermittent until about 3 LEDís then it was continuous to 4+. However at 3 LEDís it matched the V1 at around 6 LEDís, and followed the V1ís ramp. Also while the V1 was giving warning at around 2 LEDís to 6 LEDís I got brief intermittent reports at 2 or 3 LEDís from the Uniden. The signal strength was random in each case. The first reports from the Uniden I estimated at roughly at 75-80% of the total time.
The Ka comparison is unreliable. I have passed those same drones with my Uniden before on they had a steady ramp. But I have also had it report intermittently to Ka signals similar to this. I have picked up multiple intermittent 2 or 3 LEDís before finally seeing the LEO and getting an IO hit. I had just attributed it to IO, and good sensitivity to 34.7 Ka. I am not sure now. Usually a good 3 LEDís on the Uniden is a warning sign especially if it ramps up. 3 LEDís has been enough warning time from my experience.
I really want to do a real test on the Uniden.