Problem with zone signals !

I got the usbuirt to split the signal with one stick on emitter and using the regular signal from the uirt, but with zone 2 (the emitter)sometimes it changes to the incorrect channel #, like if I want to record ch 5 and ch 11 sometimes the wire emitter will change to ch 2 instead of ch 11, I edited the dish network signal file with Z2 put inplace but it still does that, I am using Gbpvr and 2 dish network stb's, it always worked fine with just the usbuirt and one stb........
help please
thanks
help please
thanks