This is a particularly curious problem.
The offset between B210’s of the “time after run” values after sample capture
has completed is very hard to explain…certainly from a hardware only
perspective.
What are the absolute time values reported? Are they at least approximately 5-6
seconds as you m
Folks,I'm looking for information from any subscriber(s) to this forum that
have successfully used the USRP N310 to provide 4 Rx channels which are both
coherent and synchronized. I've heard this could be challenging and I know
people have been able to do this successfully so I was wondering wh
Thanks Marcus. I've done a little more debugging with a simple C++ example
and the B210, and discovered that calling get_rx_stream() seems to be
slightly changing the device time by random amounts when 2 channels are
used. It doesn't matter if I actually issue a stream command or collect any
data.
Cherif,
The recommended equivalent accessories for 10GbE can be found here:
https://www.ettus.com/all-products/10gige-kit/
https://www.ettus.com/all-products/10gige-1m/
Note that there are a number of other compatible cards and cables that can
be found outside of the ettus.com site as well, but
Hi,
I have added a usrp_block_impl::_cmd_handler_freq2 which adds "args" to the
tune_request object:
void usrp_block_impl::_cmd_handler_freq2(const pmt::pmt_t& freq_,
int chan,
const pmt::pmt_t& msg)
{
double fre
Bonjour Louis-Adrien - Cool experiment! Since we don't have access to your
flowgraph, the following are just guesses. I believe that getting the
signal gains "correct enough" is the key to what you're doing. 60 dB of
attenuation is quite a bit! it's wise to protect the USRP Rx from signal
overload
Hi
Ettus is proposing an X310 compatible SFP 1G Ethernet Interface Kit in this
link: https://www.ettus.com/all-products/1gige-kit/.
Where a 10G compatible Interface Kit can be found? Otherwise are there some
other alternatives to connect the X310 SFP interface to a common Ethernet
interface.
Hi Jonathon,
Thank you very much for your reply.
What do you want to accomplish?
--> Right now, I just want to monitor the 'sample_rx' values. Eventually, I
will use this to calibrate the reference input of my custom Verilog decoder
(attached) that aims to detect spikes and measure their length (
Hello everyone,
I am using a USRP B210 with the Python (3.7.6) API with UHD 3.15 (from
conda-forge).
RF setup is as follow: one USRP, one TX/RX connected with a SMA cable, 60 dB
attenuator, central freq is 1GHz, sampling rate is 1,6 MHz (oversampling value
is 4) and RX gain is fixed to 50 dB.
Hello Rob, Hello Marcus,
thank you for your answers. They make perfect sense.
Have a good day
Paolo
On 25/02/20 14:43, Paolo Palana via USRP-users wrote:
> Hello to all the mailing list.
>
> I've a little problem in setting the rx frequency on my n310 when I need
> to acquire from all 4 channels
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