[USRP-users] Still having problems receiving multiple channels

Hello everybody, I wrote to the mailing list some month ago as I had problems setting up a multi_usrp from four USRP N210 with the help of the C++ API. As there are other projects with higher priority, I’m just working on the USRP-based stuff from time to time, that explains why there is a prob

Re: [USRP-users] Still having problems receiving multiple channels

Hi Janos, What daughtercards are you using? Can you include the console output of your program when it runs? It looks like you have useful log messages. Thanks, Derek On Tue, Oct 17, 2017 at 11:32 AM, Janos Buttgereit via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello everybody, > > I

Re: [USRP-users] Still having problems receiving multiple channels

Hi Derek, thank you for the quick response. I’m working with SBX 120 daughter cards. I copied the console output of my program to a comment under the gist I linked in my first post. Except for one warning about duplicate IP addresses for the 1GBit Link that never seemed to generate any problems

Re: [USRP-users] Still having problems receiving multiple channels

I have a very similar app, but I do take a bit of a different approach. I dont know that any of these issues are related to your implementation, but I will give you some insights into how I implemented my approach. Simple thing first, set_time_unknown_pps can take up to 2 seconds to execute,

[USRP-users] Overflow in niusrp 2954R

Hello I just faced a strange issue with my ni usrp 2954R, when I have connected it with my PC having a Intel I7 cpu and 8GB ram I was able to read data from usrp without any overflow at an sample rate of 100e6 but using the pcie express connector, but when I connect the same connector to a Dell

Re: [USRP-users] [RFNoC] Listen Before Talking (LBT)

Dear Michael, Thanks for your reply! I'll try to do something like that. I hope it works. Thanks once more and Kind Regards, Felipe Augusto On Tue, Oct 17, 2017 at 2:02 AM, Michael West wrote: > Hi Felipe, > > 1) As with any custom RFNoC block, yes it would connect to the crossbar. > > 2) Y

[USRP-users] UBX-160 with X310 communication issue

Hello, I am looking for some help with respect to the UBX-160. I have two version 2 daughtercards which were purchased a couple of months ago. I am running on CentOS 7.2 and CentOS 6.5 with GNU radio version 3.7.4 and UHD version 003.009.003. I can ping the USRP and also return information on

Re: [USRP-users] UBX-160 with X310 communication issue

Hi Mark, The UBX v2 is not supported using UHD 3.9.3. Support for the UBX v2 was added with UHD 3.9.5 and UHD 3.10.2.0. Can you please try updating to the newest UHD, such as 3.9.7 or 3.10.2.0 and try probing USRP/DBs again? Regards, Nate Temple On Tue, Oct 17, 2017 at 1:01 PM, Mark Koenig via U

Re: [USRP-users] Removing DC offset on USRP B200

Hi Oliver, even just considering the time it takes to synthesize a single image for the B200's FPGA, not counting time needed to learn where to put your Verilog: Avoid doing things in the FPGA as far as possible. The 20 minutes it costs to go through the first two or three chapters of the GNU Radi

[USRP-users] interpretation of received signal

Hi all, I am trying to transmit and receive a simple 10 kHz tone using a single USRP B205mini-i. The input power is 0 dbm ( The amplitude of 10kHz tone being 45mV). The transmitting and receiver antenna are same omnidirectional type each having 3 dbi gain. I set the transmitter gain as 8 and recei

Re: [USRP-users] interpretation of received signal

On 10/18/2017 12:08 AM, Nirmala Soundararajan via USRP-users wrote: Hi all, I am trying to transmit and receive a simple 10 kHz tone using a single USRP B205mini-i. The input power is 0 dbm ( The amplitude of 10kHz tone being 45mV). The transmitting and receiver antenna are same omnidirection