Re: [USRP-users] Phase drift issue of N310

2019-03-19 Thread Marcus D. Leech via USRP-users
On 03/19/2019 09:12 PM, Damon wrote: Hi Marcus, The phase responses of two channels of different dboards (ubx-160) in a X310 are very consistent. When the frequency of transmitting signal changes from 460.01MHz to 460.03Mhz, the phase difference between two RX channels of different

Re: [USRP-users] Phase drift issue of N310

2019-03-19 Thread Damon via USRP-users
Hi Marcus, The phase  responses of two channels of different dboards (ubx-160) in  a X310  are very consistent. When the frequency of transmitting signal changes from 460.01MHz to 460.03Mhz, the phase difference between two RX channels of different dboards  in X310 remains unchanged. But for

[USRP-users] X310 set_timed_command and get_gpio_attr

2019-03-19 Thread Michael R. Freedman via USRP-users
Hello, I have multi_usrp setup with many USRPs that are all doing timed sampling.  The sampling intervals need to be as fast as 1ms sampling for 999us.  In addition, at the start of the sample window, I need to grab the state of the GPIO pins on the front panel.  I have tried the following :

Re: [USRP-users] RFNoC DDC/Radio block/port restrictions

2019-03-19 Thread Rob Kossler via USRP-users
Yes. Thanks! On Tue, Mar 19, 2019 at 2:10 PM Brian Padalino wrote: > On Tue, Mar 19, 2019 at 1:52 PM Rob Kossler via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Hi, >> Are there restrictions regarding which DDC ports must be connected to >> which Radio ports. I am using an X310/UBX

Re: [USRP-users] RFNoC DDC/Radio block/port restrictions

2019-03-19 Thread Brian Padalino via USRP-users
On Tue, Mar 19, 2019 at 1:52 PM Rob Kossler via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi, > Are there restrictions regarding which DDC ports must be connected to > which Radio ports. I am using an X310/UBX with a custom C++ rfnoc > application and would like to do the following: >

[USRP-users] RFNoC DDC/Radio block/port restrictions

2019-03-19 Thread Rob Kossler via USRP-users
Hi, Are there restrictions regarding which DDC ports must be connected to which Radio ports. I am using an X310/UBX with a custom C++ rfnoc application and would like to do the following: Radio_0:port0 -> DDC_0:port0 Radio_1:port0 -> DDC_0:port1 Unfortunately, this fails (using default FPGA

[USRP-users] (no subject)

2019-03-19 Thread Diogo Botelho Ribeiro Marinho via USRP-users
Hello, I am using USRP N310 , how can i use the external clock LO IN 0/1 and 2/3 in GNURadio? Also i would like to know witch API is better to develop aplication in this device, GNURadio, or Matlab? Best regards Diogo ___ USRP-users mailing list