My 59 died on mw...went to CCity, and got a new one. I think I was lucky...must be well aligned as it is hot across the mw range. What surprised me is that it appears to be even better at nulling than what I remember of my earlier samples (59's). Is there varience in nullability from one unit to another? Also, what is it that makes a 59 so good at nulling? Other ulr's similar in size are not nearly as good. My larger radios are not as good in that capacity either.