0000277: The TP of AX is unstable in all bands.
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ID Category Severity Reproducibility Date Submitted Last Update
0000277 [equalizer] 0.unknown/unspecified major always 02-07-10 09:54 31-08-10 14:37
Reporter Yuan Tang View Status public  
Assigned To Harm-Jan Stiepel
Priority normal Resolution open  
Status resolved  
Summary 0000277: The TP of AX is unstable in all bands.
Description The TP of AX is unstable and droped out in all bands, and then keep with
the low TP in all bands.(see from the Lband and 6cm observation, the problem comes from the equalizer?)equalizer vervangen 06-07-2010
Additional Information The TP of AX is unstable in all bands.
  (see from the Lband and 6cm observation, the problem comes from the equalizer?)
RT A
polarisation X
Attached Files

- Relationships

- Notes
(0000295)
Yuan Tang
27-07-10 15:20

 20100727:
I think the equalizer of AX had been replaced by Hans W because he changed
the status to "test". But the TP of AX is still unstable now, which can be
seen at 3.6cm and 6cm observations. The problem comes from a bad connection?
 
(0000296)
Yuan Tang
10-08-10 14:54

 20100810:
The TP of AX(MFFE-13) is unstable in all bands at Lband, intermittent.
(This intermittent problem appears at 21cm,13cm,6cm, and 3.6cm. It could be
a problem caused by a bad connection.)
 
(0000300)
Yuan Tang
31-08-10 14:37

 20100831:
On 17-08-2010 Pieter Donker had re-connected the AX cable between the platform
and RTA. The problem does not appear till now.
 

- Issue History
Date Modified Username Field Change
02-07-10 09:54 Yuan Tang New Issue
02-07-10 09:54 Yuan Tang RT  => A
02-07-10 09:54 Yuan Tang polarisation  => X
02-07-10 09:54 Yuan Tang Assigned To  => Hans Weggemans
02-07-10 09:54 Yuan Tang Status new => assigned
05-07-10 12:51 Yuan Tang Summary The TP of AX is low in all bands. => The TP of AX is unstable in all bands.
05-07-10 12:51 Yuan Tang Additional Information Updated
06-07-10 08:58 Hans Weggemans Status assigned => testing
06-07-10 08:58 Hans Weggemans Description Updated
27-07-10 15:20 Yuan Tang Note Added: 0000295
27-07-10 15:20 Yuan Tang Assigned To Hans Weggemans => Harm-Jan Stiepel
27-07-10 15:20 Yuan Tang Status testing => assigned
10-08-10 14:54 Yuan Tang Note Added: 0000296
31-08-10 14:37 Yuan Tang Note Added: 0000300
31-08-10 14:37 Yuan Tang Status assigned => resolved