Hi guys,
I am trying to simultaneously record Galileo's E5a and E5b signals as follows:

I have tried to record them separately by tuning the local oscillator in the middle of the signals bandwidths and sampling at 25MHz and it worked. But when I try to shift and filter to get the signals in a different file, it does not work. I have no idea what am i doing wrong.
Galileo's Signal Plan is as follows: