Thank you all for this answers. I was driving with accuSweep on and the radar detector was silent when I was passing nearby Multinova 6F. I have Superband Ka on, and accuSweep off, but the detection of radar detector is very poor only 10-20m in 60km/h in town where limit is 50km/h. I was thinking that is possible to adjust this AccuSweep from 34,7 into 34,3GHz. Can anybody tell me how can I disassemble my bel 985 after i unscrew 2 screws. Plan for this. I have software verzion 5.4. I would like to buy bel990i. Thank you all again and happy holidays for all who is driving with us.