Dear fellow users,
I intend to put together a 8 channel data collection system using 2 X310s, each
mounted with 2 TwinRXs. With the guidance from the past experience in this
forum, I have installed the hardware and started data collection on a computer
running on Ubuntu 16.04 LTS and UHD 126.96.36.199. Time and frequency
synchronisation were obtained by using the clock and PPS from external
Octoclock-G, and also timed command for the two X310s as source0 and source1.
However, I realised that as the TwinRXs in different X310s did not share LOs,
the data collected was not phase synchronised. I am currently trying to take
LO1 and LO2 from one of the boxes and sharing it with the other TwinRXs via an
RF splitter. The first TwinRX LOs are set to "Internal, True (for export)" and
"Companion, True", while the rest are set to "External, False". I shall refer
to the former TwinRX as "Master", and the remaining as "Slave". The Master is
in RX A slot of the first X310.
With this setup, I am able to achieve phase synchronisation repeatedly for the
Master, and Slaves placed in RX B slot of X310. The Slave place in RX A slot
of the second X310 has a phase which starts independently of the Master.
Any kind advice of what I am missing to achieve phase synchronisation of the
GOH Liang Zhen
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