Re: [USRP-users] SYNC For N310

Hi Marcus, 1.yes,we read it.But we could not find about a external devices.It is possible that one of tx port of N310 as external LO when achieve 4 channels sync receive? 2.From here: http://files.ettus.com/manual/page_usrp_n3xx.html#n3xx_ getting_started_connectivity we know that the SFP+

Re: [USRP-users] SYNC For N310

On 05/09/2018 10:44 PM, liu Jong via USRP-users wrote: Hi all, We know that external LO is needed when we want to sync 4 channel of N310.So Ettus supply the external LO or some advice? Another quetion,if we want to directly connect via the SFPs and operate N310 as X3xx from a host,how set

[USRP-users] SYNC For N310

Hi all, We know that external LO is needed when we want to sync 4 channel of N310.So Ettus supply the external LO or some advice? Another quetion,if we want to directly connect via the SFPs and operate N310 as X3xx from a host,how set that? best regards Jon

Re: [USRP-users] USRP sample rate bound to signal bandwidth

On 05/09/2018 07:57 PM, Jacob Knoles wrote: Thanks for the quick reply guys. Marcus the Re-sampling option makes perfect sense, and I believe, in theory, since I am writing data to a file for later use I could interpolate it just before writing then read it out at the usrp sample rate,

Re: [USRP-users] USRP sample rate bound to signal bandwidth

Thanks for the quick reply guys. Marcus the Re-sampling option makes perfect sense, and I believe, in theory, since I am writing data to a file for later use I could interpolate it just before writing then read it out at the usrp sample rate, right? Ian, very interesting suggestion. I will have

Re: [USRP-users] USRP sample rate bound to signal bandwidth

On 05/09/2018 06:53 PM, Jacob Knoles via USRP-users wrote: Hello All, I am trying to generate OFDM signals of various bandwidths using the X300 (UBX-160), particularly 20/40/80 and 160 MHz bandwidths. I have used the gnuradio ofdm_tx.grc example file to generate a data file which I then feed

[USRP-users] USRP sample rate bound to signal bandwidth

Hello All, I am trying to generate OFDM signals of various bandwidths using the X300 (UBX-160), particularly 20/40/80 and 160 MHz bandwidths. I have used the gnuradio ofdm_tx.grc example file to generate a data file which I then feed into the USRP an monitor on a spectrum analyzer. To quickly

Re: [USRP-users] N310 and get_usrp_rx_info()

Hi Martin, I noticed the following in the notes for release candidate 3.11.1 * UHD: Update multi_usrp::get_usrp_?x_info() for MPM devices So, I tried out these functions. They seem to have been implemented with the index meaning "daughterboard" rather than "channel" because they fail once the

Re: [USRP-users] [UHD] 3.11.0.0 Release Announcement

Hi Martin, Do you know whether the recently-announced release "3.11.1.0 Release Candidate 1" addresses the bug discussed in this thread? Or should we keep all our machines on 3.10.3 for now? Thanks, On Thu, Apr 19, 2018 at 7:01 PM Dario Fertonani wrote: > Hi Martin,

[USRP-users] [UHD] Announcing 3.11.1.0 Release Candidate 1

The release candidate of UHD version 3.11.1.0 has been tagged and is available for testing. This is a maintenance release with many bug fixes, mainly affecting N3xx, X3xx, and B2xx devices. This release is API compatible with 3.11.x.x releases, but has a new ABI due to some refactoring of the

Re: [USRP-users] Phase Difference Using B210

I did an experiment and the values match pretty much exactly what theory would predict. I don't have a splitter, so I used a 1m cable on the channel A of my B210 as my reference, and compared a 1m and a 2m RF cable on channel B. The 1m cables have a velocity factor of 0.83 (enforcer SI-195), and