loadzone=us defaultzone=us # GBX Span span=1,1,0,esf,b8zs bchan=1-23 dchan=24 # GBX Span span=2,2,0,esf,b8zs bchan=25-47 dchan=48 # GBX Span span=3,3,0,esf,b8zs bchan=49-71 dchan=72 # GBX Span span=4,4,0,esf,b8zs bchan=73-95 dchan=96