0000097: a problem from the correlator board
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ID Category Severity Reproducibility Date Submitted Last Update
0000097 [DZB] correlator board major sometimes 22-01-09 13:28 16-02-09 07:04
Reporter Yuan Tang View Status public  
Assigned To Hans Weggemans
Priority normal Resolution open  
Status resolved  
Summary 0000097: a problem from the correlator board
Description 20090120:
 There is an intermittent problem from the correlator:
  (at the configuration of 4 bands,512ch,2 polars,BW=10MHz)
  bad ifrs in band0 only
  0X7X,0X6X,0X5X,0X4X
  1X7X,1X6X,1X5X,1X4X
  2X7X,2X6X,2X5X,2X4X
  3X7X,3X6X,3X5X,3X4X
  and the same in Y.
Additional Information 20090121:
 To trace the problem of the correlator the Board2 had been swapped
 with Board3 in the COR unit0 at 20/01.
nr subbands 1
nr polarisations
nr channels
bandwidth
multi-subarray no
recirculation no
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- Issue History
Date Modified Username Field Change
22-01-09 13:28 Yuan Tang New Issue
22-01-09 13:28 Yuan Tang nr subbands  => 1
22-01-09 13:28 Yuan Tang multi-subarray  => no
22-01-09 13:28 Yuan Tang recirculation  => no
22-01-09 13:31 Yuan Tang Assigned To  => Hans Weggemans
22-01-09 13:31 Yuan Tang Status new => assigned
22-01-09 13:31 Yuan Tang Description Updated
22-01-09 13:31 Yuan Tang Additional Information Updated
16-02-09 07:04 Hans Weggemans Status assigned => resolved