I don't know for certain, but I think it should work.  You will need to use
2 channels from different daughterboards (e.g., channels 0 and 2) since
each daughterboard shares the same rx LO.
Rob

On Thu, Jan 21, 2021 at 2:57 PM Glenn Hazelwood via USRP-users <
[email protected]> wrote:

> I have an N310 and I wish to scan from 10 MHz to 5910 MHz with two
> channels. The frontend bandwidth is 100 MHz. So I do 60 tunings overall. I
> am directly using the UHD 3.15.0.0 C++ API
>
> The retune time is typically ~120 ms. My sample rate is 125 Msps.
> Therefore, the time to receive samples is relatively small. For example,
> receiving time for 32768 samples is ~1.3 ms. WIth one thread and one
> channel, my overall tune and receive time for the 60 tunings is ~7200 ms.
>
> I wanted to try to reduce the overall runtime by using two threads and two
> channels. One thread would do half the tunings and the other thread would
> do the other half at the same time.
>
> I see that I can make separate rx_streamers in separate threads, each with
> its own channel to receive samples. I think rx_streamers[chan].recv()
> should work for two threads. I'm not so confident about
> 'usrp->set_rx_frequency()' for two threads.
>
> Is it possible to have two separate threads each tune to different
> frequencies at the same time with the N310?
>
> Also: Is there a way to search the Archives to see if someone has already
> asked this question. Google doesn't always seem to help.
>
> -
> Diftor heh smusma
> -Famous Vulcan Phrase ;)
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