On 28/09/2011 11:19 AM, Matt Ettus wrote:
My impression is that, except in special circumstances, the analog
filters are set "appropriately", if the hardware has settable
On Wed, Sep 28, 2011 at 5:18 AM,
I recently found out that the Bandwidths of the XCVR 2450
Daugtherboard are as
follows for the RX and TX side respectively:
RX: 15M, 19M, 28M, 36M; (each +-0, 5, or 10%)
TX: 24M, 36M, 48M
Can someone elaborate on these values please and how to decide
upon which one to
use? As I can understand, this is dependent on the specific
however, I am puzzled as to why they are different since these
to the bandwidth allowed in the bandpass filter prior to
These filters are programmable low-pass filters which
operate at baseband. In general, you just need to set them
wide enough for the signals you wish to deal with.
Discuss-gnuradio mailing list
The analog bandwidth should generally be set to be somewhere less
than Fs/2, for whatever Fs is in use on the motherboard--
64Msps on the USRP1/E100 and 100Msps on the USRP2/N2XXX family.
Since the FPGA normally does digital filtering, as long
as the analog bandwidth is set to less than Fs/2, you shouldn't
need to adjust the filters, and I think UHD does this automatically.