|From:||Marcus D. Leech|
|Subject:||Re: [Discuss-gnuradio] phase coherence for N210 and SBX|
|Date:||Thu, 23 Apr 2015 18:12:20 -0400|
|User-agent:||Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0|
On 04/23/2015 06:06 PM, Pengyu Zhang wrote:
If you want phase-coherency, the two USRP sources *must* be part of the same multi_usrp object--you have them as separate sources. One
can think of a multi_usrp object as also providing a common "coherency domain".
Also, even when you do that, the "timed commands" feature in UHD, specifically designed to zero-out phase *offset* for the SBX and WBX and
UBX boards, isn't, as far as I recall, something that gr-uhd does automatically, so it isn't available in a GR flow-graph. Martin Braun can correct
me if I'm wrong.
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