[USRP-users] B210 power saving

2019-05-16 Thread Sylvain Munaut via USRP-users
Hi, Does anyone here have any tips to reduce the power of a B210 (both when running and also when idle). Deconfiguring the FPGA and FX2 when it does nothing does save a whole lot of power but it takes a significant amount of time to go back to running mode unfortunately. Also seems the radio cloc

Re: [USRP-users] X310 witn TwinRX: master_clock_rate issue

2019-05-16 Thread Devin Kelly via USRP-users
So when i I try to set the master clock rate to 100 MHz directly I get an error and when I don't set it I get a warning. Can I just disregard the warning or is there something else going on here? $ uhd_rx_cfile -r 10e6 -f 850e6 -g 10 -a 'args=192.168.40.2,master_clock_rate=100e6' tmp.dat [INFO]

[USRP-users] x310 gpsdo get_time_now()

2019-05-16 Thread Ilay Nissim via USRP-users
Hi I have an x310 connected to gpsdo UHD ver14.0 I sync to gpsdo at start of bringup Than use get_time_now() to follow usrp time It look like usrp time is2x slow Meaning if 100 seocnds should have passed - 50 seconds pass For example Using clock source - gpsdo time source gpsdo if on init gps t

Re: [USRP-users] X310 witn TwinRX: master_clock_rate issue

2019-05-16 Thread Marcus D. Leech via USRP-users
On 05/16/2019 01:34 PM, Devin Kelly via USRP-users wrote: So when i I try to set the master clock rate to 100 MHz directly I get an error and when I don't set it I get a warning. Can I just disregard the warning or is there something else going on here? Yes, you can disregard the warning. Tha

Re: [USRP-users] x310 gpsdo get_time_now()

2019-05-16 Thread Marcus D. Leech via USRP-users
On 05/16/2019 01:47 PM, Ilay Nissim via USRP-users wrote: Hi I have an x310 connected to gpsdo UHD ver14.0 I sync to gpsdo at start of bringup Than use get_time_now() to follow usrp time It look like usrp time is2x slow Meaning if 100 seocnds should have passed – 50 seconds pass For exampl

[USRP-users] problem with fftw_plan_dft_2d

2019-05-16 Thread Koyel Das (Vehere) via USRP-users
Hi, Following is a snapshot of my code using fftw_plan_dft_2d. I am getting all zeros in the imaginary part of fft (in the printf command of the following code:last line). The real part is correct.Could you please tell where am I going wrong? fftw_complex *imageOutputPlane=VDDSAlgorithm::im

Re: [USRP-users] problem with fftw_plan_dft_2d

2019-05-16 Thread Marcus D. Leech via USRP-users
On 05/16/2019 11:52 PM, Koyel Das (Vehere) via USRP-users wrote: Hi, Following is a snapshot of my code using fftw_plan_dft_2d. I am getting all zeros in the imaginary part of fft (in the printf command of the following code:last line). The real part is correct.Could you please tell where a

Re: [USRP-users] problem with fftw_plan_dft_2d

2019-05-16 Thread Koyel Das (Vehere) via USRP-users
Hi Marcus, I emailed to f...@fftw.org but got no response so I thought some USRP users might also be using this library and hence I may get a response. That is why. Regards, Koyel Das Senior – Product Engineer Vehere | Proactive Communications Intelligence & Cyber Def

Re: [USRP-users] problem with fftw_plan_dft_2d

2019-05-16 Thread Samuel Prager via USRP-users
From a cursory glance it looks like you are creating (hermetian) symmetry in your data with phy [whatever][whatever] I would suggest reviewing the properties of the discrete Fourier transform. On May 16, 2019, 9:11 PM -0700, Koyel Das (Vehere) via USRP-users , wrote: > Hi Marcus, > > I emailed t

Re: [USRP-users] problem with fftw_plan_dft_2d

2019-05-16 Thread Koyel Das (Vehere) via USRP-users
Hi Samuel, I have checked 2d FFT for the same data in MATLAB and there the imaginary are non zero. So its not due to property of DFT. Regards, Koyel Das Senior – Product Engineer Vehere | Proactive Communications Intelligence & Cyber Defence M: +919051132173 | T: +91 33 40545454 | F: +91 33