[USRP-users] LFRX antialiasing

mepard mepard at me.com
Tue Apr 30 15:31:59 EDT 2013


In the "Receive FPGA pipeline overflow?" thread, on Apr 30, 2013, at 12:12 PM, Marcus D. Leech <mleech at ripnet.com> wrote:

> Also, if you aren't band-limiting your input to handily-below the Nyquist frequency (50Mhz, in the case of the N210, because the ADC samples at
>  100Msps), then you'll get aliases folded into the signals after they're sampled.

So we need external filtering for the LFRX board? I knew this was true for the BasicRX (1 - 250 MHz), but I had the impression this wasn't necessary for the LFRX (0 - 30 MHz).

-Marc

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