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ID |
Category |
Severity |
Reproducibility |
Date Submitted |
Last Update |
0000218 |
[MFFE] 0.unknown/unspecified |
major |
sometimes |
18-01-10 13:54 |
03-02-10 11:07 |
|
Reporter |
Yuan Tang |
View Status |
public |
|
Assigned To |
Harm-Jan Stiepel |
Priority |
normal |
Resolution |
fixed |
|
Status |
resolved |
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Summary |
0000218: The cross correlations of 9X*X,9Y*Y(MFFE-11) have no Ampls at Lband. |
Description |
The cross correlations of 9X*X,9Y*Y have no Ampls, and
the TPs of 9X,9Y(MFFE-11) are too low.
(It is an intermittent problem which happened twice at Lband observations.
It became normal after stopping and starting the daemon of MFFE-11.) |
Additional Information |
Op28 jan. is het MFFE11 in RT9 gewisseld voor MFFE03.
De oorzaak waren twee defecte DC/DC omvormers (6 cm Y en Lband Y) in de LNA voeding. |
|
MFFE |
11 |
RT |
9 |
MFFE-band |
21cm |
polarisation |
X, Y |
sky frequency (MHz) |
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Attached Files |
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