0000283: The TPs of DX,DY are too low from the MFFE-11 at 6cm,21cm.

  

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ID Category Severity Reproducibility Date Submitted Last Update
0000283 [MFFE] 0.unknown/unspecified major sometimes 21-07-10 13:01 11-10-10 13:01
Reporter Yuan Tang View Status public  
Assigned To Harm-Jan Stiepel
Priority high Resolution fixed  
Status resolved  
Summary 0000283: The TPs of DX,DY are too low from the MFFE-11 at 6cm,21cm.
Description There is an intermittent problem on RTD(MFFE-11) which happens at 6cm and 21cm:
The TPs of DX,DY are too low from the MFFE-11 and the cross correlations of
DX*X,DY*Y have no Ampls.
(Could be a problem from the LO high? or LO cable?)
Additional Information 20100916:
The comments from Jurjen:
Today 09/09/2010 HJS replaced in RTD the MFFE11 by MFFE09.
Now we have normal TP on 6cm and 21 cm again.
MFFE 11
RT D
MFFE-band L-band, 6cm
polarisation X, Y
sky frequency (MHz)
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- Issue History
Date Modified Username Field Change
21-07-10 13:01 Yuan Tang New Issue
21-07-10 13:01 Yuan Tang MFFE  => 11
21-07-10 13:01 Yuan Tang RT  => D
21-07-10 13:01 Yuan Tang MFFE-band  => L-band, 6cm
21-07-10 13:01 Yuan Tang polarisation  => X, Y
21-07-10 13:02 Yuan Tang Assigned To  => Harm-Jan Stiepel
21-07-10 13:02 Yuan Tang Status new => assigned
16-09-10 13:24 Yuan Tang Additional Information Updated
11-10-10 09:53 Harm-Jan Stiepel Status assigned => resolved
11-10-10 13:01 Harm Munk Resolution open => fixed