Vincenzo; While I can't profess to be an expert on the TrakBox, (I just got one and am in process of setting up), I think that you should read the software manual carefully. You have an option of north or south pointing and you can set limits of travel. The difference in travel on yours is that it turns 450 degrees. I don't think the TrakBox can deal with the conversion of the extra 90 degrees wrapping around (Experts weigh in here). But you can program the ADC limits so that it will track 0-360. I don't see any logical reason to change the scale on your azimuth meter.