0000364: There is no noise source step on DX,DY of RTD at Lband,13cm and 92cm.
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ID Category Severity Reproducibility Date Submitted Last Update
0000364 [MFFE] 0.unknown/unspecified major always 02-08-11 11:48 23-08-11 15:14
Reporter Yuan Tang View Status public  
Assigned To Juergen Morawietz
Priority normal Resolution open  
Status closed  
Summary 0000364: There is no noise source step on DX,DY of RTD at Lband,13cm and 92cm.
Description At 92cm there is no noise source step on DX,DY of RTD(MFFE-01).
Additional Information 20110808:
The noise source step is also small sometimes at Lband on DX,DY of RTD.


20110816:
Tested current of control signal Z9/Z10 for noise source in basement.
Current was >=4 mA both directions. Typically it should be ~ 3mA.
Replaced surge protection module 'Modutrab' 5 in FE-box of RT D.

Regarding first tests performed by Yuan the problem is solved.
However, I keep the issue on 'testing' for a couple of days.
- Juergen -

20110819:
Status set to 'resolved'
- Juergen -

20110823:
'closed' issue
- Juergen -
MFFE 01
RT D
MFFE-band 92cm
polarisation X, Y
sky frequency (MHz)
Attached Files

- Relationships

- Notes
(0000357)
Yuan Tang
15-08-11 12:17

 20110815
There is no noise source step on DX,DY of RTD at Lband,13cm and 92cm.
 

- Issue History
Date Modified Username Field Change
02-08-11 11:48 Yuan Tang New Issue
02-08-11 11:48 Yuan Tang MFFE  => 01
02-08-11 11:48 Yuan Tang RT  => D
02-08-11 11:48 Yuan Tang MFFE-band  => 92cm
02-08-11 11:48 Yuan Tang polarisation  => X, Y
02-08-11 11:48 Yuan Tang Assigned To  => Harm-Jan Stiepel
02-08-11 11:48 Yuan Tang Status new => assigned
08-08-11 13:48 Yuan Tang Additional Information Updated
15-08-11 12:17 Yuan Tang Note Added: 0000357
15-08-11 12:17 Yuan Tang Summary At 92cm there is no noise source step on DX,DY of RTD(MFFE-01). => There is no noise source step on DX,DY of RTD at Lband,13cm and 92cm.
16-08-11 11:31 Juergen Morawietz Status assigned => testing
16-08-11 11:31 Juergen Morawietz Additional Information Updated
16-08-11 12:47 Juergen Morawietz Additional Information Updated
17-08-11 07:31 Juergen Morawietz Assigned To Harm-Jan Stiepel => Juergen Morawietz
17-08-11 07:31 Juergen Morawietz Additional Information Updated
19-08-11 11:37 Juergen Morawietz Status testing => resolved
19-08-11 11:37 Juergen Morawietz Additional Information Updated
23-08-11 15:14 Juergen Morawietz Status resolved => closed
23-08-11 15:14 Juergen Morawietz Additional Information Updated