www.ni.com/white-paper/14311/en/ Greetings, Marcus On 12/11/2014 04:54 PM, Richard Bell wrote: > That's perfect. Thanks a lot. I'm curious to know where this document came > from, so I can help myself later. Can you tell me? > > v/r, > Rich > > On Tue, Dec 9, 2014 at 8:52 AM, Marcus Müller <marcus.mueller@ettus.com> > wrote: > >> Hi Ian, >> thanks, I was looking for that. >> Richard: Everything left of the ADC/DAC is on the WBX daughterboard. >> >> Greetings, >> Marcus >> >> On 12/09/2014 05:41 PM, Ian Buckley wrote: >>> Block diagram USRP N210 + WBX: >>> >>> >> http://www.ni.com/white-paper/app/largeimage?lang=en&imageurl=%2Fcms%2Fimages%2Fdevzone%2Ftut%2FUSRP_Advanced_Diagram_smaller.png >>> On Dec 9, 2014, at 8:24 AM, Marcus Müller via USRP-users < >> usrp-users@lists.ettus.com> wrote: >>>> Hi Richard, >>>> it's a 300+-page PDF file, which works quite well on any computer that >> I tried -- maybe you need to wait a second for your PC to load that >> document? >>>> It doesn't contain a block diagram of the WBX, however. >>>> >>>> Greetings, >>>> Marcus >>>> >>>> On 12/09/2014 02:00 AM, Richard Bell wrote: >>>>> I've seen the the UHD manual but not the performance measures doc. It >> is >>>>> not opening for me. If it has a block diagram of the WBX board, then >> that >>>>> is what I was looking for. >>>>> >>>>> There is no more information I need at this time. Your previous answer >> was >>>>> helpful and what I was looking for. >>>>> >>>>> Yes you can move this to the usrp list. >>>>> >>>>> Thanks again, >>>>> Rich >>>>> >>>>> On Mon, Dec 8, 2014 at 12:24 PM, Marcus Müller < >> marcus.mueller@ettus.com> >>>>> wrote: >>>>> >>>>>> There's so much Marcus in here ;) so here's my answer: usually, >> you'd use >>>>>> the USRP+WBX as direct conversion receiver, not an IF one. >>>>>> >>>>>> Regarding WBX documentation: have you seen the performance >> measurements >>>>>> [1], and the UHD manual [2]? >>>>>> >>>>>> Is there some specific information you're missing? >>>>>> >>>>>> Best regards, >>>>>> Marcus >>>>>> >>>>>> PS: if you'd agree, I'd like to shift this discussion to >>>>>> usrp-users@lists.ettus.com . >>>>>> >>>>>> [1] http://files.ettus.com/performance_data/wbx/ >>>>>> [2] http://files.ettus.com/manual/page_dboards.html#dboards_wbx >>>>>> >>>>>> >>>>>> On 12/08/2014 08:57 PM, Richard Bell wrote: >>>>>> >>>>>> I think Marcus answered my question. Thank you. >>>>>> >>>>>> On Mon, Dec 8, 2014 at 11:53 AM, Richard Bell < >> richard.bell4@gmail.com> <richard.bell4@gmail.com> >>>>>> wrote: >>>>>> >>>>>> >>>>>> I'm apologize. I am using a WBX card. >>>>>> >>>>>> I forgot to mention that I've been looking for a datasheet for the >> WBX, >>>>>> but all I can find is the PCB schematic doc on the ettus website which >>>>>> isn't very useful. So I don't know what the IF frequency coming out >> of the >>>>>> WBX is. Does the WBX tune itself given the UHD source settings so >> that the >>>>>> IF it produces is proper for the USRP ADC? >>>>>> >>>>>> Rich >>>>>> >>>>>> On Mon, Dec 8, 2014 at 11:28 AM, <mleech@ripnet.com> < >> mleech@ripnet.com> wrote: >>>>>> >>>>>> The N2xx series use a fixed sample rate, so there's no "deciding >> what >>>>>> sample rate to use based on Fc". >>>>>> >>>>>> There's also the analog bandwidth of the ADC to consider. If you >> aren't >>>>>> going to use a downconverter card, then the analog bandwidth of the >> ADC >>>>>> will start to roll-off at some point, so even if you narrowband >> filter your >>>>>> input signal to remove aliasing possibilities, you will end up in the >>>>>> roll-off skirts of the analog bandwidth of the ADC. >>>>>> >>>>>> Is there some reason not to use a downconverter card, like the WBX for >>>>>> your application? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On 2014-12-08 14:23, Richard Bell wrote: >>>>>> >>>>>> I have a binary FSK signal centered at 300 MHz with 160 kHz offset >>>>>> peaks from the center freak. Therefore the lowest signal frequency of >>>>>> interest is 300-0.16 = 299.84 MHz and the highest is 300.16 MHz. >>>>>> >>>>>> I know the maximum sampling rate of the USRPN210 ADC is 100 MSPS. If >> the >>>>>> USRP uses that sample rate of 100 MSPS, it will alias my signal onto >> itself >>>>>> in an unwanted manor. >>>>>> >>>>>> My question is, how does the USRPN210 decide what sample rate to set >> the >>>>>> ADC to? Is it a function of both the center frequency and the sample >> rate >>>>>> setting of the UHD source block? >>>>>> >>>>>> Thanks, >>>>>> Rich >>>>>> >>>>>> _______________________________________________ >>>>>> Discuss-gnuradio mailing listDiscuss-gnuradio@gnu.orghttps:// >> lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Discuss-gnuradio mailing listDiscuss-gnuradio@gnu.orghttps:// >> lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Discuss-gnuradio mailing list >>>>>> Discuss-gnuradio@gnu.org >>>>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> Discuss-gnuradio mailing list >>>>> Discuss-gnuradio@gnu.org >>>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> _______________________________________________ >>>> USRP-users mailing list >>>> USRP-users@lists.ettus.com >>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>