Do you have any experience with the adjustment of Bel radar detectors to the central european settings. Radars used in CEE (Czech Republic) are broadcasting much weaker signal within smaller Ka Band range often below 34 GHz (33.9xx). Original US made detectors are successful in cases when the detector is heading against you, however not that good when their direction of broadcasting is in the same way as you are driving. Can there be any changes of firmware done? If so, how?