0000408: 8Y band 0 huge TP drops. Quite often.
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ID Category Severity Reproducibility Date Submitted Last Update
0000408 [DZB] 0.unknown/unspecified major always 31-05-12 10:46 12-07-12 12:24
Reporter Yuan Tang View Status public  
Assigned To Sjouke Zwier
Priority normal Resolution open  
Status testing  
Summary 0000408: 8Y band 0 huge TP drops. Quite often.
Description 8Y band 0 huge TP drops. Quite often.
Additional Information 20120710
After swapping the ADC unit of band0,8Y andband1,8Y the problem appeared at
band1,8Y.
To solve the problem of Band1,8Y(the TP drops out) the new ADC unit has been replaced today.
nr subbands 1
nr polarisations
nr channels
bandwidth
multi-subarray no
recirculation no
Attached Files

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- Notes
(0000386)
Juergen Morawietz
08-06-12 15:37

 Filterunit, Converterunit and DDS have already been checked/repalced.

After swapping the complete ADC board of band 0 with 1, the problem
now occurred on band 1. So it seems, that the problem comes from the
ADC board, since the sampler module was already replaced on this
board.

I assigned this issue to Sjouke.

Juergen, June 8th, 2012
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- Issue History
Date Modified Username Field Change
31-05-12 10:46 Yuan Tang New Issue
31-05-12 10:46 Yuan Tang nr subbands  => 1
31-05-12 10:46 Yuan Tang multi-subarray  => no
31-05-12 10:46 Yuan Tang recirculation  => no
31-05-12 10:46 Yuan Tang Assigned To  => Juergen Morawietz
31-05-12 10:46 Yuan Tang Status new => assigned
08-06-12 15:37 Juergen Morawietz Note Added: 0000386
08-06-12 15:37 Juergen Morawietz Assigned To Juergen Morawietz => Sjouke Zwier
12-07-12 12:18 Yuan Tang Additional Information Updated
12-07-12 12:19 Yuan Tang Status assigned => testing
12-07-12 12:24 Yuan Tang Additional Information Updated