On 11/06/2017 04:57 PM, Sarah Tran via USRP-users wrote:
Hi everyone!
I was wondering if anyone knew if it was possible to phase align more
than 2 X310s (with UBX daughterboard) to form a coherent array? I know
that 2x2 MIMO is possible using a single X310, but I want to be able
to sync 4 of them. I thought I read somewhere that it was dependent on
the daughterboard, but I can’t find that thread anywhere.
Thanks for all the help!
Yes, use an external 10MHz reference and 1PPS source, like the
Octoclock, or Octoclock-G, or similar.
Also, see this App note:
https://kb.ettus.com/Synchronization_and_MIMO_Capability_with_USRP_Devices
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