0000290: The TP of 6X(MFFE-02) is unstable in all bands at 6cm, intermittent.
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ID Category Severity Reproducibility Date Submitted Last Update
0000290 [MFFE] 0.unknown/unspecified major sometimes 08-09-10 12:34 06-03-12 13:26
Reporter Yuan Tang View Status public  
Assigned To Harm-Jan Stiepel
Priority normal Resolution suspended  
Status testing  
Summary 0000290: The TP of 6X(MFFE-02) is unstable in all bands at 6cm, intermittent.
Description The TP of 6X is unstable in all bands, intermittent, it appeared at Lband and 6cm.
Additional Information The problem might come from the MFFE or a bad connection.
(if not then looking at the equalizer.)

20100922:
The TP of 6X(MFFE-02) is unstable in all bands which appeared at 6cm and Lband
   but not at 13cm.
  (The problem comes from MFFE-02, from the LOhigh?)

20101012
The TP of 6X(MFFE-02) is unstable, which happened at 6cm.

20101015
The TP of 6X(MFFE-02) is unstable, intermittent, which happened at 6cm only now.
(The problem comes from the MFFE-02.)

The problem comes from the MFFE-02(see the TP of 6X from the MFFE-02 on 11-12/10).
MFFE 02
RT 6
MFFE-band L-band, 6cm
polarisation X
sky frequency (MHz)
Attached Files

- Relationships

- Notes
(0000305)
Harm Munk
11-10-10 13:07

 Linked to 288: "B0: 6Y autocor. plots RFI spikes every 0.5 MHz at ~ 1614 MHz"
 

- Issue History
Date Modified Username Field Change
08-09-10 12:34 Yuan Tang New Issue
08-09-10 12:38 Yuan Tang Severity minor => major
08-09-10 12:38 Yuan Tang Reproducibility always => sometimes
08-09-10 12:44 Yuan Tang Assigned To  => Hans van der Marel
08-09-10 12:44 Yuan Tang Status new => assigned
08-09-10 12:44 Yuan Tang Additional Information Updated
13-09-10 08:59 Hans van der Marel Assigned To Hans van der Marel => Harm-Jan Stiepel
22-09-10 11:24 Yuan Tang Additional Information Updated
27-09-10 06:52 Harm Munk Category 0.unknown/unspecified => front-end
27-09-10 06:54 Harm Munk Project submission => MFFE
11-10-10 13:06 Harm Munk MFFE  => 02
11-10-10 13:06 Harm Munk RT  => 6
11-10-10 13:06 Harm Munk MFFE-band  => L-band, 6cm
11-10-10 13:06 Harm Munk polarisation  => X
11-10-10 13:06 Harm Munk Category front-end => 0.unknown/unspecified
11-10-10 13:07 Harm Munk Note Added: 0000305
12-10-10 11:39 Yuan Tang Summary The TP of 6X is unstable in all bands, intermittent. => The TP of 6X(MFFE-02) is unstable in all bands at 6cm, intermittent.
12-10-10 11:39 Yuan Tang Additional Information Updated
15-10-10 11:49 Yuan Tang Additional Information Updated
06-03-12 13:26 Harm-Jan Stiepel Status assigned => testing
06-03-12 13:26 Harm-Jan Stiepel Resolution open => suspended