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Re: [Discuss-gnuradio] USRP2 transmission issues

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] USRP2 transmission issues
Date: Mon, 31 Jan 2011 12:15:48 -0500
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10

On 01/31/2011 11:51 AM, nyquist82 wrote:
> I do not understand what you mean by "proper" bandwidth. And what are these
> "proper" USRP2 `s bandwidth? Thanks anyway for your reply.
The allowable bandwidths for the USRP2 are in the range 100Msps /
([4...512]).  The
  FPGA *do not do* fractional interpolation/decimation.  The rate that
is presented to the
  USRP2 must be an integer fraction of the basic DAC/ADC rate.

It's also vastly preferable that the interpolation rate be even, and
it's better if it's
  a multiple of 4.

Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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