It is possible to find other codes, that people claim are able to calculate RCS. Many of them can only calculate up to two times reflections. Three times reflections – however ( like corner reflections ) – are the most important thing to avoid if you want to create a stealth RCS object. With cadRCS it is possible to calculate up to 10 reflections. Go to our download page and check if the code in question can calculate the corner reflector and the parabola correctly.