0000083: Band7 the Ampls of 4X*X are low in the configuration of 8 bands,128ch,2 polars.
All Projects | CNI | DZB | equalizer | IVC/ADC | LFFE | MFFE | Puma | Puma 2 | RFI | RT | submission | system time | Tadu | Time/LO | TMS | VLBI

Main | My View | View Issues | Change Log | Docs
  

Viewing Issue Simple Details [ Jump to Notes ] [ Issue History ] [ Print ]
ID Category Severity Reproducibility Date Submitted Last Update
0000083 [DZB] correlator board major always 03-11-08 13:14 22-06-11 08:22
Reporter Yuan Tang View Status public  
Assigned To Hans Weggemans
Priority low Resolution open  
Status closed  
Summary 0000083: Band7 the Ampls of 4X*X are low in the configuration of 8 bands,128ch,2 polars.
Description Band7 the Ampls of 4X*X are low in the configuration of 8 bands,128ch,
  2 polars,BW=20MHz(there is no problem in 8 bands,64ch,4 polars).
  (It should be a problem from the correlator board.)
   see 10805458-10805460,S08B/010
Additional Information 20081211:

I have made a few test observations at this settings, but the problem
disappears for unknown reason. (see 10806133,10806136)
nr subbands 1
nr polarisations
nr channels
bandwidth
multi-subarray no
recirculation no
Attached Files

- Relationships

- Notes
(0000119)
Jurjen Sluman
06-01-09 14:09

 We did a test observation with this setting and we couldn't see the effect in the observation.
 

- Issue History
Date Modified Username Field Change
03-11-08 13:14 Yuan Tang New Issue
03-11-08 13:14 Yuan Tang nr subbands  => 1
03-11-08 13:14 Yuan Tang multi-subarray  => no
03-11-08 13:14 Yuan Tang recirculation  => no
03-11-08 13:14 Yuan Tang Assigned To  => Hans Weggemans
03-11-08 13:14 Yuan Tang Status new => assigned
08-12-08 15:45 Yuan Tang Description Updated
08-12-08 15:47 Yuan Tang Description Updated
11-12-08 14:21 Yuan Tang Status assigned => information
11-12-08 14:21 Yuan Tang Additional Information Updated
11-12-08 14:21 Yuan Tang Priority normal => low
11-12-08 14:30 Yuan Tang Additional Information Updated
06-01-09 14:09 Jurjen Sluman Note Added: 0000119
06-01-09 14:09 Jurjen Sluman Status information => resolved
22-06-11 08:22 Juergen Morawietz Status resolved => closed