Thanks to HIROSHI !
http://drm.mediacat-blog.jp/e159127.html
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They had previously broadcast test programs, but recently they've been
appearing frequently again. Since the DRM from Kunming Transmission,
which previously broadcast CRI programs, is not present, they might be
using these as a replacement.
The label shows "CUC-ECDAV".
CUC-ECDAV is the Engineering Research Center of the Ministry of Intelligent
Education for Broadcasting and Television at the Communications University
of China, and they conduct test broadcasts with its support.
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