Thanks Josh, I've still been toying with this though.. and aren't really having any success. E.g. if I pick a Tx bandwidth of 24MHz.. and transmit
and use 8bit I&Q samples transmitted at 50MHz.. then shouldn't I see some signs of the filter? What should I be looking for on my spec amp? I assume by baseband filter, that you mean this is a digital filter that applies what I send from the CPU to the USRP.. Cheers -Michael On Wed, Jul 11, 2012 at 9:09 AM, Josh Blum <[email protected]> wrote: > > > On 07/08/2012 04:28 AM, Michael Hill wrote: > > Hi, > > > > This is a two part question > > > > 1) What are the XCVR2450 bandwidth options? > > I've looked at the website and discussion list threads on the matter and > > seen different answers on what the the bandwidth options are for the > > XCVR2450 daughterboard. > > The spec sheets seem to indicate different answers too.. which muddle me > > further as I'm unsure if i'm reading them wrong. > > Can someone clarify for me what they are? Have there been two revisions > of > > this hardware of something? > > > > Maybe there is some confusion about specifying the bandwidth of a > baseband filter. See this for available rates. > 20 MHz means +/- 10 MHz about the center of the baseband signal. > http://files.ettus.com/uhd_docs/manual/html/dboards.html#xcvr-2450 > > > 2) How do I se the bandwidth? > > I'm trying to use the Bandwidth block on the UHD_Sink. > > However I don't get any confirmation messages or indicators if i've set > it > > wrong.. how can I check? > > > > RX defaults to 19MHz and TX 24MHz. You really cant see the filter > profile unless sample rate > filter BW > > -josh >
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