[USRP-users] Maintaining USRP Carrier Frequency Lock

2020-01-30 Thread Richard Bell via USRP-users
Hello, I am trying to collect serveral data sets through USRP X300's. Assume each collection is 1000 samples long and is initiated by a user typing a button on the keyboard. Each time the user hits a key 1000 samples are collected and stored to a file. The time between each collect is defined by t

Re: [USRP-users] Measuring TDOA for Localization

2020-01-09 Thread Richard Bell via USRP-users
me through all the hardware chains, the TDOA estimate will be accurate. Can I assume the hardware delay through X300 USRPs with the same FPGA image and set to the same sampling frequency will be the same? On Thu, Jan 9, 2020 at 12:51 PM Brian Padalino wrote: > On Thu, Jan 9, 2020 at 12:14 PM Ric

[USRP-users] Measuring TDOA for Localization

2020-01-09 Thread Richard Bell via USRP-users
Hello, I'm working on a TDOA based localization platform using 3 USRP X300's as receivers. I have them synchronized with a 10 MHz ref and PPS signal generated by an OctoClock. However, I'm having trouble getting reliable localization performance through this system. My TDOA measurements are not wh

Re: [USRP-users] Multi-USRP with X300's

2019-10-22 Thread Richard Bell via USRP-users
e every be a situation where I would do something like A:1 instead of A:0 in the subdevice specs? On Tue, Oct 22, 2019 at 11:25 AM Marcus D Leech wrote: > Could you share your flow graph with us? > > What daughtercards do you have installed? > > Sent from my iPhone > > > On

[USRP-users] Multi-USRP with X300's

2019-10-22 Thread Richard Bell via USRP-users
Hello, I'm a little confused about how I should distinguish between two different USRPs X300's and the two different motherboards per USRP X300 in this type of setup. I am feeding a 10 MHz ref and PPS ref to both USRPs. What I have right now is a gr flowgraph with a single USRP Sink block that I h

Re: [USRP-users] B205 Mini Problem

2017-10-10 Thread Richard Bell via USRP-users
I still haven't gotten anywhere with this. Can someone tell me if they've gotten a B205 Mini working through Virtual Box with Ubuntu 16.04? On Sun, Oct 8, 2017 at 3:31 PM, Richard Bell wrote: > Hi all, > > I'm trying to use a B205 Mini on my Surface Book with Ubuntu 16.04 running > in a virtual

[USRP-users] B205 Mini Problem

2017-10-08 Thread Richard Bell via USRP-users
Hi all, I'm trying to use a B205 Mini on my Surface Book with Ubuntu 16.04 running in a virtual box. When I press the reset button on the B205 mini itself, and then run uhd_find_devices, this is what is returned: ~$ uhd_find_devices [INFO] [UHDlinux; GNU C++ version 5.4.0 20160609; Boost_105800;