Re: [Discuss-gnuradio] USRP data rates

[Jeff Brower]

Lisa-

> The USRP sales brochure lists as a feature "Capable of processing signals up 
> to 16
> MHz wide". I can only figure out how it can process signals up to 8 MHz wide. 
> What
> am I missing?
> 
> Since samples sent across the USB are 16-bit signed integers (16-bit I and 
> 16-bit Q
> for complex samples) that makes each complex sample size 4 bytes. Since the 
> USB max
> is 32MB/s, we have a limit of 8MS/s which translates to an effective 
> bandwidth of
> 8MHz wide.

32 Mbyte/sec --> 16 Msample/sec --> 16 MHz bandwidth.

If you want to consider complex sampling, then divide into 8 MHz positive
frequencies, 8 MHz negative.

-Jeff