[evlatests] Ant. 19C

[Kerry Shores]

  19C frame alignment in the Deformatter got lost, probably seeing 
'shredded levels' on it.  I manually realigned the frames, and tried 
adjusting the delays close to where they were (maybe 8ns off?), but 
delays need to be re-run on 19C.  Will do a better fix on Monday.

   Also, FYI the FIFO that the data frames go through inside the 
Deformatter are 32 frames deep.  That means a 'frame adjustment' could 
shift the timing by up to 31 frames, at 16 ns per frame, can sometimes 
result in very large delay changes.  Mike Revnell and I work to keep the 
net delay change small, but sometimes we miss a few...

-- 
Kerry Shores
Electrical Engineer
National Radio Astronomy Observatory
1003 Lopezville Rd.
Socorro, NM  87801
phn: 505-835-7158
fax: 505-835-7027