Thank you Derek for the comments. I just want to clarify this point about connecting two USRP devices; first, it seems to be fine to connect a USRPN200 with USRP2 (via a MIMO cable), right? Second, by connecting two devices via MIMO cable, I need to connect their GigaBit Ethenet cables to a GigaBit switch, which feeds the host, right? Is there an example (i.e. code) on how to do such configuration? What parameters to send to each device? I also don't have an external source, like 10MHz and 1 PPS references; my plan is just to use MIMO cable; it seems from your reply it is doable.
Another question, I have two USRPB210 devices, is it possible to use these devices instead of USRPN/2? Is there an extra hardware/software that we need to use with USRPB210 to get the two devices sync in time and freq? Best, Wahhab On Thu, Nov 9, 2017 at 9:34 AM, Derek Kozel <derek.ko...@ettus.com> wrote: > Hello Wahhab Albazrqaoe, > > It is certainly possible to configure each USRP to be tuned to a different > frequency and to be synchronized closely in time. A 1 Gigabit Ethernet > connection can carry approximately 25 MS/s of 16 bit samples and 50 MS/s of > 8 bit samples. We do not support sending 4 bit samples so it is not > possible to carry 100 MHz worth of spectrum over the 1 GigE cable of an > N2x0 or USRP2. You should operate in Dual Ethernet mode using the MIMO > cable to share clock and time references. If you already have external 10 > MHz and 1 PPS references that you can send to both then the MIMO cable > gives you little benefit in this situation. > http://files.ettus.com/manual/page_usrp2.html#usrp2_mimocable > <https://urldefense.proofpoint.com/v2/url?u=http-3A__files.ettus.com_manual_page-5Fusrp2.html-23usrp2-5Fmimocable&d=DwMFaQ&c=nE__W8dFE-shTxStwXtp0A&r=Tlms1z6tKiruwUlcy5dGsCCn_nZvNYIamSz8XsFHSRs&m=VGOSWfv9tGkGmMnimSB1CdXINqvkCsEy9vnk0K6qq0M&s=u0ke8LMqaemeiYKZA49AdF5DAzQavZgSuReDgT8yQx8&e=> > > You will be limited to 8 bit samples so you should check that you > application will be ok with that limitation. Newer USRPs use faster > connections such as USB 3 and 10 Gigabit Ethernet to pass higher resolution > samples at higher rates. > > Regards, > Derek > > > On Thu, Nov 9, 2017 at 2:07 PM, Wahhab Albazrqaoe via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Dear All, >> We would like to sense (i.e. sample) 100 MHz of 2.4GHz spectrum. My idea >> is to connect 2 USRPs (USRPN200 and USRP2) via a MIMO cable (available at >> ettus.com >> <https://urldefense.proofpoint.com/v2/url?u=http-3A__ettus.com&d=DwMFaQ&c=nE__W8dFE-shTxStwXtp0A&r=Tlms1z6tKiruwUlcy5dGsCCn_nZvNYIamSz8XsFHSRs&m=VGOSWfv9tGkGmMnimSB1CdXINqvkCsEy9vnk0K6qq0M&s=PSyPhuuc6w7iP77pKr2zZ4IPIUy5TJxL8odqr6wBua8&e=>). >> Then, we configure each USRP separately to monitor 50MHz of bandwidth (8bit >> per sample). >> >> My question: >> 1- is it possible to configure each USRP separately to monitor different >> spectrum segment? Example, USRPN200 senses 2400MHz to 2450MHz and USRP2 >> sense 2450MHz up to 2500MHz. >> If this is possible, is it possible to get the samples over one GigaBit >> Ethernet cable (i.e. connected to one USRP device)? Or we may need to take >> a cable out of each device and connect them to a switch, which feeds the >> host ? >> >> 2- is it possible to connect USRPN200 with USRP2 via a MIMO cable? Or we >> need to use two USRP devices of the same type? like two of USRPN200 or two >> of USRP2. >> >> Thanks >> Wahhab Albazrqaoe >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.ettus.com_mailman_listinfo_usrp-2Dusers-5Flists.ettus.com&d=DwMFaQ&c=nE__W8dFE-shTxStwXtp0A&r=Tlms1z6tKiruwUlcy5dGsCCn_nZvNYIamSz8XsFHSRs&m=VGOSWfv9tGkGmMnimSB1CdXINqvkCsEy9vnk0K6qq0M&s=UDrnn2_SdXQRAou4zuu0Q6u5SVQBZwepHogZ0taR6Xw&e=> >> >> >
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
