Anonymous | Login | 23-11-2024 18:26 UTC |
All Projects | CNI | DZB | equalizer | IVC/ADC | LFFE | MFFE | Puma | Puma 2 | RFI | RT | submission | system time | Tadu | Time/LO | TMS | VLBI |
Main | My View | View Issues | Change Log | Docs |
Viewing Issue Simple Details [ Jump to Notes ] | [ Issue History ] [ Print ] | ||||||||
ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
0000364 | [MFFE] 0.unknown/unspecified | major | always | 02-08-11 11:48 | 23-08-11 15:14 | ||||
Reporter | Yuan Tang | View Status | public | ||||||
Assigned To | Juergen Morawietz | ||||||||
Priority | normal | Resolution | open | ||||||
Status | closed | ||||||||
Summary | 0000364: There is no noise source step on DX,DY of RTD at Lband,13cm and 92cm. | ||||||||
Description | At 92cm there is no noise source step on DX,DY of RTD(MFFE-01). | ||||||||
Additional Information |
20110808: The noise source step is also small sometimes at Lband on DX,DY of RTD. 20110816: Tested current of control signal Z9/Z10 for noise source in basement. Current was >=4 mA both directions. Typically it should be ~ 3mA. Replaced surge protection module 'Modutrab' 5 in FE-box of RT D. Regarding first tests performed by Yuan the problem is solved. However, I keep the issue on 'testing' for a couple of days. - Juergen - 20110819: Status set to 'resolved' - Juergen - 20110823: 'closed' issue - Juergen - |
||||||||
MFFE | 01 | ||||||||
RT | D | ||||||||
MFFE-band | 92cm | ||||||||
polarisation | X, Y | ||||||||
sky frequency (MHz) | |||||||||
Attached Files | |||||||||
|
Notes | |
(0000357) Yuan Tang 15-08-11 12:17 |
20110815 There is no noise source step on DX,DY of RTD at Lband,13cm and 92cm. |