Hi All,
I'm looking at using multiple B210s synchronized with GPSDO distributed
over a few kilometers. The idea is to measure time-of-arrival of a signal
source. I understand the limitations of the GPSDO 1pps & 10 MHz reference
frequency/time stability.
What I'm curious about is whether anybody h
Hi Sumit,
I am trying to send samples in bursts. How to compile this program
tx_bursts.
Because when compiled using command line arguments its showing error.
/usr/local/src/uhd/host/examples$ ./tx_bursts --rate=1e6 --freq=100e6
--spb=8500 --repeat
bash: ./tx_bursts: No such file or directory
Can
Hi Sneha - If you're looking for the installed "tx_bursts" example, the
default location should be in the directory
"/usr/local/share/uhd/examples/". Cheers! - MLD
On Tue, Oct 9, 2018, at 5:25 AM, Sneha vasan via USRP-users wrote:
> Hi Sumit,
>
> I am trying to send samples in bursts. How to compi
Hey Corey,
yep, when updating your UHD you also need to update your fpga-src
submodule; `git submodule update`. If you have changes you want to
preserve: Standard git methods apply; just make a branch in the fpga-
src submodule to contain your changes, then update the submodule, then
merge in your
Works!
Don't forget that PPS accuracy of a GPS receiver is theoretical best-
case some 50 ns; in reality, things can get a little worse than that.
Best regards,
Marcus
On Tue, 2018-10-09 at 09:32 +0200, Stephan Esterhuizen via USRP-users
wrote:
> Hi All,
>
> I'm looking at using multiple B210s
On 10/09/2018 01:24 PM, Marcus Müller via USRP-users wrote:
Works!
Don't forget that PPS accuracy of a GPS receiver is theoretical best-
case some 50 ns; in reality, things can get a little worse than that.
Best regards,
Marcus
It wasn't clear to me whether that was a *single* GPSDO whose outpu
They match. commit 6af6ac32
cah@snoke:~/rfnoc/src/uhd$ git log -1
commit 6af6ac32c30d2dc0efa6eab61e4a3920649e3e62
Author: Trung Tran
Date: Fri Aug 3 09:12:55 2018 -0700
examples: add rfnoc_radio_loopback
This example will allow an RF->RF loopback using RFNoC devices.
cah@snoke:~/rfnoc
Ok, I get it now. They are NOT suppose to match. Using the commands you
laid out put me on the right branch for fpga-src. Place and Route ing
again.
Corey
On Tue, Oct 9, 2018 at 9:27 PM Corey Hahn wrote:
> They match. commit 6af6ac32
>
> cah@snoke:~/rfnoc/src/uhd$ git log -1
> commit 6af6ac3
Each B210 will have a GPSDO, they'll be separated by a few kilometers. My
understanding is as follows:
1) When each B210 syncs, the 1PPS pulse between each USRP would be aligned
to +-50 nsec. Since they're only separated by a few km, I suspect the
alignment might be better because of common errors
