Dear Ettus Support,
Thank you for your prompt and detailed response. I appreciate the clarification
regarding the use of RFNoC and UHD multi_usrp streamers.
To answer your question, my goal is to display the Power Spectral Density (PSD)
from the four channels. I plan to use a window function, perform an FFT, and
apply the log power block to calculate the PSD.
Could you please advise on the best way to combine all four channels into one
for this purpose? Specifically, I'm interested in understanding how to properly
aggregate the data streams so that I can calculate the PSD effectively.
Thank you again for your support.
Best regards,
Olo
On Tuesday, August 13th, 2024 at 16:48, Marcus D. Leech
<patchvonbr...@gmail.com> wrote:
> On 13/08/2024 10:36, Olo via USRP-users wrote:
>
>> Dear Ettus Support Team,
>>
>> I hope this message finds you well.
>>
>> I am currently working with an X310 SDR equipped with two TwinRX
>> daughterboards, and I am looking to receive data simultaneously across all
>> four channels. My goal is to maximize the available bandwidth by configuring
>> the system to receive on all channels in parallel.
>>
>> Could you please advise on the best approach to achieve this? Specifically,
>> I would like to know if it is necessary to use a specialized RFNoC graph for
>> this setup, or if the uhd::multi_usrp class in the UHD library, along with a
>> corresponding rx_streamer, would be sufficient to accomplish this task.
>>
>> I appreciate any guidance or recommendations you can provide.
>>
>> Thank you for your support.
>>
>> Best regards,
>> Olo.
>
> Assuming that all the streams terminate on your computer, then the limiting
> factor is always going to be your computer. RFNoC
> is only helpful if you want to do some of the computing on the radio. But if
> the goal is to have 4 streams going to your computer,
> at full rate, then RFNoC doesn't bring anything to the table--and in fact,
> internally these days, an application that uses UHD
> multi-usrp streamers actually sets up a standardized RFNoC flow on the radio
> anyway.
>
> This document can be helpful:
>
> https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks
>
> The ultimate question becomes "what do I want to do with those streams?".
> That will determine whether your computer
> can handle the aggregate data rates.
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