I'm wondering if the new 'B' series family of the PNA/PNA-X still has that 200 channel limitation or not. Also, is the 200 channels limitation just an arbitrary number and can be increased in future firmware revisions? I'm hitting that limit right now. Other test equipment vendors we have talked to stated they don't have a set limit on their systems. (only limited by the amount of memory available) Just wondering what are the reasons behind the 200 channel limit.