0000087: At 13cm the Ampls of 6X*X(MFFE-15) are low.
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ID Category Severity Reproducibility Date Submitted Last Update
0000087 [MFFE] 0.unknown/unspecified major always 18-11-08 15:33 23-02-09 09:04
Reporter Yuan Tang View Status public  
Assigned To Harm-Jan Stiepel
Priority normal Resolution fixed  
Status resolved  
Summary 0000087: At 13cm the Ampls of 6X*X(MFFE-15) are low.
Description At 13cm the Ampls of 6X*X(MFFE-15) are low.
  (about 40% lower in all 8 bands).
(The Tsys of 6X is high and the TP of 6X is unstable.)
Additional Information 20081211:
This problem is always there, see 10806164.
(The TP of 6X is ok but the Tsys of 6X is high.)

20090211:
On RT6 the MFFE-15 had been replaced by the MFFE-05 and the problem
doesn't appear. So this problem comes from the MFFE-15.
MFFE 00
RT 0
MFFE-band
polarisation
sky frequency (MHz)
Attached Files

- Relationships
related to 0000090closed Harm-Jan Stiepel There is a local RFI on MFFE-15 at about 364MHz. 

- Notes
(0000125)
Yuan Tang
27-01-09 11:42

 20090127:

On RT6 the MFFE-15 had been replaced by the MFFE-05 at 20/01,2009.
It is still not clear what reason causes the problem.
 

- Issue History
Date Modified Username Field Change
18-11-08 15:33 Yuan Tang New Issue
18-11-08 15:37 Yuan Tang Assigned To  => Hans van der Marel
18-11-08 15:37 Yuan Tang Status new => assigned
19-11-08 12:45 Yuan Tang Summary At 13cm the Ampls of 6X*X,6Y*Y(MFFE-15) are low. => At 13cm the Ampls of 6X*X(MFFE-15) are low.
19-11-08 12:45 Yuan Tang Description Updated
19-11-08 13:13 Bert Woestenburg Project submission => MFFE
19-11-08 13:14 Bert Woestenburg Assigned To Hans van der Marel => Bert Woestenburg
19-11-08 13:14 Bert Woestenburg Assigned To Bert Woestenburg => Yuan Tang
19-11-08 13:14 Bert Woestenburg Assigned To Yuan Tang => Harm-Jan Stiepel
11-12-08 15:23 Yuan Tang MFFE  => 00
11-12-08 15:23 Yuan Tang RT  => 0
11-12-08 15:23 Yuan Tang Additional Information Updated
27-01-09 11:42 Yuan Tang Note Added: 0000125
11-02-09 14:28 Yuan Tang Additional Information Updated
17-02-09 13:55 Jurjen Sluman Relationship added related to 0000090
23-02-09 09:04 Jurjen Sluman Status assigned => resolved
23-02-09 09:04 Jurjen Sluman Resolution open => fixed