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ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
0000392 | [DZB] 0.unknown/unspecified | major | sometimes | 27-01-12 15:22 | 14-05-12 12:25 | ||||
Reporter | Yuan Tang | View Status | public | ||||||
Assigned To | Juergen Morawietz | ||||||||
Priority | normal | Resolution | open | ||||||
Status | closed | ||||||||
Summary | 0000392: The TP of Band2,6X is unstable, jumped up and down. | ||||||||
Description | The TP of Band2,6X is unstable, jumped up and down. | ||||||||
Additional Information |
on 18.1.2012 we localized a defective sampler unit. (See Issue 0000390) After replacement on ADC board, this channel seems to be instable. on 31.1.2012 I interchanged the filter, DDS and converterunits in the rack with band 3 of the same telescope and polarization. now testing whether the problem moves to band 3 or remains in band 2. Juergen, 1.2.2012 ---------------------------------------------------------------------- Problem has moved to band 3, so I replaced the filter- and the converterunit of band 3. The DDS was not replaced. status is 'resolved'. Juergen, 3.2.12 ---------------------------------------------------------------------- closed issue. Juergen 14.5.2012 ---------------------------------------------------------------------- |
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nr subbands | 1 | ||||||||
nr polarisations | |||||||||
nr channels | |||||||||
bandwidth | |||||||||
multi-subarray | no | ||||||||
recirculation | no | ||||||||
Attached Files | |||||||||
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