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

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

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 >