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According to https://wiki.ucar.edu/x/HwClBg, the 16m licor is SN1164.

http://www.eol.ucar.edu/isf/projects/BEACHON_SRM/isfs/qcdata/plots/2012/08/23/licor_20120823.png^{Image Removed}

On Aug 23 18:48:30, the diag initially dropped from a good value of 249 to 118-121.

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Since Aug 23, the diagnostic value has been all over the map, with bits 5,6,7 changing regularlyover the day.
Here's a snippet of data from Aug 30. Diag=159, binary 10011111, bits 5 and 6 are 0 (not OK), bits 4 and 7 are OK.

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