Re: how to use 2 usrp b210 to receive synchronously

[james jordan]

thanks Marcus and Gwen.

so i need to add the python source rather than config on the gnuradio block?

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From: discuss-gnuradio-bounces+james.jordan.999=hotmail.com@gnu.org <discuss-gnuradio-bounces+james.jordan.999=hotmail.com@gnu.org> on behalf of Marcus D. Leech <patchvonbraun@gmail.com>
Sent: Tuesday, May 30, 2023 9:53 PM
To: discuss-gnuradio@gnu.org <discuss-gnuradio@gnu.org>
Subject: Re: how to use 2 usrp b210 to receive synchronously

 

On 30/05/2023 08:12, Gwenhael Goavec-Merou wrote:
> With the link:
> https://lists.gnu.org/archive/html/discuss-gnuradio/2019-11/msg00034.html
>
> Sorry
>
> Gwen
>
>
The key is to set a common start-time on the two multi_usrp objects
(after making sure that both units have
   a common understanding of clock-time).

But note that you likely won't achieve good-quality *phase coherence*
with this setup due to the way the
   AD9361 chip works, and the way the external-clock PLL works in the
B2xx series.