I managed to produce apparent phase-coherence with a LimeSDR with a
gr-osmosdr-based app by using an external "reader" program, based on
David Lonards work here:
https://groups.google.com/group/amateur-radio-interferometry/attach/6d20aa0e8fe35/limerec.py?part=0.2&view=1
I used the same setup, but have it reading both channels continuously,
and feeding to the gr-osmosdr source file a pair of FIFOs using the "file="
driver type.
This produced reasonable-quality fringing for an astronomical
interferometer, whereas using the LimeSDR "direct" though gr-osmosdr
produced no
useful results (apparently random phase shifts over short timescales).
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