Tests are on youtube Blue Raider in the Polish company ZURAD radar trap-band K.
Author test "radarjammertester".
Polish text is basically the same for these two films, differs in the given time missed camera.
The text is as follows:
The first raid on the safety camera jammer enabled lowering speed of 45km / h. The second invasion to a similar rate of approximately 80km/hz off jammer. In the latter case, the speed camera photo and does flash. Speed ??camera on the right side painted in yellow, half way between the roundabouts before school. The first passing speed camera (with jammer) 50 .... seconds. , the second passing without removing the jammer ending in 2min50sek ..... Ugly screech of a signal jammer detection zurada.