We received the following message from DESY who has a test setup for the HiSCORE-Tunka experiment:

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Btw, Greetings from Siberia:
our 9 WR-field stations doing an excellent job!
First physics calibrations, sending a light beam over hundreds of meters to our station grid (0.3x0.3km2 grid).
WR clocks look excellent.
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More info about their setup can be found under DESY at the White Rabbit committed users page.