[Discuss-gnuradio] Analog filter before USRP?

[Alberto Trentadue]

Hello
Is a preselector needed before the USRP when receiving from antenna? May be 
not. I see that there's a CIC filter 
in the USRP which is selective enough to estract a narrower band for the 
GNURadio processing.
But at least I need a low-
pass filter before the USRP to get rid of strong singnals above Fs/2 (Fs = the 
sampling rate).
Is this correct?

Thanks 
in advance
Alberto



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