Hello
I am need to fetch GPS data and time from the on-board GPSDO in NI USRP x310.
Is it necessary for me to sync both clock source and time source to GPSDO for
that or without it I can directly fetch it. Please help me with an example to
fetch GPS data from it.
BR
Snehasish
_
On 09/01/2017 10:23 AM, Snehasish Kar via USRP-users wrote:
Hello
I am need to fetch GPS data and time from the on-board GPSDO in NI
USRP x310. Is it necessary for me to sync both clock source and time
source to GPSDO for that or without it I can directly fetch it. Please
help me with an ex
Hi all,
Had posted about this before, but focusing on 1 simple case here.
I'm observing a change in a wired channel every time I restart my flow graph.
I'm using 1 USRP + WBX board, i.e. tx and rx on the same USRP. So
time/frequency sync should not be a factor, I believe.
I simply do: start
I have UHD installed from source using a git clone of the UHD repository.
After executing "git pull" and then "make", "make test", and "make
install", I noticed that my version had not updated when running
uhd_find_devices. I then went back and tried "make clean" followed by the
other commands and
Hi AB,
Let me make a guess here. Because of the clock is not perfectly
synchronized, there is non-linearity. Therefore the channel estimator gives
multiple coefficient. Try connecting 2 USRP with the same reference clock
and pulse per second signal and see if there are still multipath.
Regards,
E
Looks like there is a random phase. Every time you start, the phase of the
clock maybe different. Hence when you plot the signal, it's going to be
different. I can observe the same random phase in my BPSK program.
Bakshi, Arjun via USRP-users 于2017年9月1日周五
下午2:48写道：
> Hi all,
>
>
> Had posted abou
The only solution I've found is picking a center frequency that is a multiple
of 64MHz based on this reply by Matt
http://lists.gnu.org/archive/html/discuss-gnuradio/2008-06/msg00017.html
Regards,
AB
From: Edwin Li
Sent: Friday, September 1, 2017 6:13:03 PM
So the SBX daughter board has a phase resync feature, which I think would
alleviate my problem. For other boards it is noted in [1] that :
"Most daughterboards use a fractional-N synthesizer ... Generally, these
fractional- N synthesizers introduce a random phase offset after each retune
...,
On 09/01/2017 10:10 PM, Bakshi, Arjun via USRP-users wrote:
So the SBX daughter board has a phase resync feature, which I think
would alleviate my problem. For other boards it is noted in [1] that :
"Most daughterboards use a fractional-N synthesizer ... Generally,
these fractional- N synth
