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Unassigned [^] (1 - 1 / 1)
0000381
There was the problem on the power supply of the cryo LNA on the RT6/MFFE-15
power supply - 05-11-24 03:01

All open issues [^] (1 - 50 / 88)
0000388
 
At 92cm,21cm,6cm the ampls of *YCY(RTC/MFFE-04) are low in all bands.
0.unknown/unspecified - 13-11-24 03:23
0000381
There was the problem on the power supply of the cryo LNA on the RT6/MFFE-15
power supply - 05-11-24 03:01
0000428
 
At Lband the TP of 7Y is unstable and the problem comes from the MFFE-09 on RT7.
0.unknown/unspecified - 11-09-13 11:37
0000420
 
On MFFE-09/RT8 there is the strong local RFI in the MFFE-09 on Y channel at the sky frequency 1200MHz.
0.unknown/unspecified - 21-11-12 12:15
0000414
 
9X(MFFE-07) doesn't work at 3.6cm
0.unknown/unspecified - 30-10-12 11:43
0000412
 
Sometimes the RT8/MFFE-12 failed to work at 6cm for unknown reason.
0.unknown/unspecified - 02-10-12 10:43
0000406
RTC No correlated data for CY on 92,13,50,UHFHigh. L-band and 6cm are ok.
0.unknown/unspecified - 12-07-12 12:20
0000407
RTD no correlated signal and no TP at L-band.
0.unknown/unspecified - 11-06-12 11:35
0000402
 
The TP of DX(MFFE-02) is unstable at 6cm(droped down sometimes), intermittent.
0.unknown/unspecified - 02-05-12 09:07
0000367
 
The phases of 6X,6Y(MFFE-15) are unstable, intermittent.
0.unknown/unspecified - 06-03-12 13:30
0000313
 
At 18cm there is LO problem on MFFE-07/RTC, intermittent.
0.unknown/unspecified - 06-03-12 13:27
0000290
 
The TP of 6X(MFFE-02) is unstable in all bands at 6cm, intermittent.
0.unknown/unspecified - 06-03-12 13:26
0000288
 
B0: 6Y autocor. plots RFI spikes every 0.5 MHz at ~ 1614 MHz
0.unknown/unspecified - 06-03-12 13:21
0000386
 
Some intermittent setting problem on MFFE-11/RT7 appeared at Lband
0.unknown/unspecified - 06-03-12 12:24
0000401
 
There is no noise source step on the RTB(MFFE-08) at 6cm and Lband.
0.unknown/unspecified - 06-03-12 12:18
0000399
 
The RT6(MFFE-15) cannot be used at the 3.6cm VLBI because the phase is unstable.
0.unknown/unspecified - 27-02-12 10:12
0000391
 
The TPs of RT0/MFFE-16 dropped out at both X and Y for unknown reason.
0.unknown/unspecified - 01-02-12 12:14
0000371
 
At 3.6cm there are no Ampls of the cross correlations with 0X,0Y(MFFE-16).
0.unknown/unspecified - 27-01-12 15:25
0000372
 
At 6cm the Ampls of 0X*X,0Y*Y(MFFE-16) are 50% lower.
0.unknown/unspecified - 27-01-12 15:24
0000348
 
No amplitude of the cross corrlations with RTB at 18cm.
0.unknown/unspecified - 19-12-11 14:04
0000374
 
At Lband and 6cm the TP of 6Y(MFFE-15) is unstable.
0.unknown/unspecified - 12-12-11 13:11
0000382
 
There is the LO locking problem at some certain frequencies on RT2/MFFE-10.
LO high - 12-12-11 13:04
0000383
There is the feed revolver problem on RT9/MFFE-12
feedrevolver - 12-12-11 12:42
0000373
 A
The cryo-temperature of RT8/MFFE-06 became high since UT06:00,25/08 for unknown reason.
cooling/cryostat - 19-09-11 09:43
0000370
 
At Lband the TP of BX(MFFE-08) is unstable, the problem comes from the MFFE-08.
0.unknown/unspecified - 30-08-11 13:46
0000297
 
The cryo temperature is high on RTB(MFFE-04).
0.unknown/unspecified - 25-07-11 13:15
0000316
 
The cryo-temperature of RT0/MFFE-15 is high and unstable.
0.unknown/unspecified - 04-07-11 11:48
0000327
 
The Cryo-temperature of RT3/MFFE-11 was high sometimes during 22-23/01.
cooling/cryostat - 04-07-11 11:38
0000354
 
At 92cm there is the problem on RT7/MFFE-11.
0.unknown/unspecified - 28-06-11 10:25
0000351
 
At 92cm there are no cross correlations with 4X,4Y(MFFE-11).
0.unknown/unspecified - 30-05-11 12:54
0000335
 
MFFE016 in RT0 gives no signal for 92cm and 13cm
LO low - 23-05-11 11:59
0000337
 
The cryo-temperature of RT1/MFFE-05 is high and unstable
cooling/cryostat - 23-05-11 11:55
0000310
 
On RTC/MFFE-07 there is the problem around the 5043MHz which is used by VLBI/eVLBI.
0.unknown/unspecified - 18-03-11 13:49
0000312
 
At 18cm there is LO problem on MFFE-16/RT4, intermittent.
0.unknown/unspecified - 18-03-11 13:45
0000317
 
The TP of CY/MFFE-07 is unstable at Lband, it drops out sometimes.
0.unknown/unspecified - 18-03-11 13:43
0000332
 
At 3.6cm there are no TPs(or TPs are too low) from CX,CY(MFFE-07).
0.unknown/unspecified - 18-03-11 13:40
0000323
 
There is an intermittent LO(or LO locking) problem on RTD/MFFE-12 at 1681MHz.
LO high - 07-03-11 12:59
0000330
 
9Y gives no signal for 6cm in all 8 bands
0.unknown/unspecified - 07-03-11 12:53
0000319
 
Total power 4X unstable at a 10-20% level
total power - 12-01-11 12:48
0000320
 
RT4 mffe016 UHFhigh antenna gets stuck.
0.unknown/unspecified - 12-01-11 12:45
0000306
 
The cryo-temperature of RTD(MFFE-09) is high and unstable.
0.unknown/unspecified - 13-12-10 10:19
0000307
 
On RT0/MFFE-15 there is the LO locking problem at 92cm, intermittent.
0.unknown/unspecified - 13-12-10 10:16
0000293
The TPs of 4X,4Y and the Ampls of 4X*X,4Y*Y are unstable in all bands and at all frequencies.
0.unknown/unspecified - 26-11-10 14:07
0000298
 
The cryo temperature is high on RT2(MFFE-12).
0.unknown/unspecified - 26-11-10 14:01
0000299
 
The cryo temperature is high on RT4(MFFE-08).
0.unknown/unspecified - 26-11-10 13:57
0000295
 
No correlated data from RTC (mffe07) at 13cm ,92cm,UHFhigh(a problem from LO-low)
0.unknown/unspecified - 23-11-10 10:21
0000283
The TPs of DX,DY are too low from the MFFE-11 at 6cm,21cm.
0.unknown/unspecified - 11-10-10 13:01
0000281
 
No correlated data from BY 6cm. MFFE-010
0.unknown/unspecified - 16-09-10 13:06
0000285
 
The cross correlations of 7X*X,7Y*Y(MFFE-01) have no Ampls at Lband, intermittent.
0.unknown/unspecified - 31-08-10 14:29
0000282
 
Sometimes no correlated data from RT8 XY due to strange pointing behaviour.
0.unknown/unspecified - 20-07-10 09:19

Resolved [^] (1 - 50 / 73)
0000406
RTC No correlated data for CY on 92,13,50,UHFHigh. L-band and 6cm are ok.
0.unknown/unspecified - 12-07-12 12:20
0000407
RTD no correlated signal and no TP at L-band.
0.unknown/unspecified - 11-06-12 11:35
0000402
 
The TP of DX(MFFE-02) is unstable at 6cm(droped down sometimes), intermittent.
0.unknown/unspecified - 02-05-12 09:07
0000386
 
Some intermittent setting problem on MFFE-11/RT7 appeared at Lband
0.unknown/unspecified - 06-03-12 12:24
0000401
 
There is no noise source step on the RTB(MFFE-08) at 6cm and Lband.
0.unknown/unspecified - 06-03-12 12:18
0000391
 
The TPs of RT0/MFFE-16 dropped out at both X and Y for unknown reason.
0.unknown/unspecified - 01-02-12 12:14
0000371
 
At 3.6cm there are no Ampls of the cross correlations with 0X,0Y(MFFE-16).
0.unknown/unspecified - 27-01-12 15:25
0000372
 
At 6cm the Ampls of 0X*X,0Y*Y(MFFE-16) are 50% lower.
0.unknown/unspecified - 27-01-12 15:24
0000348
 
No amplitude of the cross corrlations with RTB at 18cm.
0.unknown/unspecified - 19-12-11 14:04
0000374
 
At Lband and 6cm the TP of 6Y(MFFE-15) is unstable.
0.unknown/unspecified - 12-12-11 13:11
0000382
 
There is the LO locking problem at some certain frequencies on RT2/MFFE-10.
LO high - 12-12-11 13:04
0000383
There is the feed revolver problem on RT9/MFFE-12
feedrevolver - 12-12-11 12:42
0000373
 A
The cryo-temperature of RT8/MFFE-06 became high since UT06:00,25/08 for unknown reason.
cooling/cryostat - 19-09-11 09:43
0000297
 
The cryo temperature is high on RTB(MFFE-04).
0.unknown/unspecified - 25-07-11 13:15
0000316
 
The cryo-temperature of RT0/MFFE-15 is high and unstable.
0.unknown/unspecified - 04-07-11 11:48
0000327
 
The Cryo-temperature of RT3/MFFE-11 was high sometimes during 22-23/01.
cooling/cryostat - 04-07-11 11:38
0000354
 
At 92cm there is the problem on RT7/MFFE-11.
0.unknown/unspecified - 28-06-11 10:25
0000351
 
At 92cm there are no cross correlations with 4X,4Y(MFFE-11).
0.unknown/unspecified - 30-05-11 12:54
0000335
 
MFFE016 in RT0 gives no signal for 92cm and 13cm
LO low - 23-05-11 11:59
0000337
 
The cryo-temperature of RT1/MFFE-05 is high and unstable
cooling/cryostat - 23-05-11 11:55
0000310
 
On RTC/MFFE-07 there is the problem around the 5043MHz which is used by VLBI/eVLBI.
0.unknown/unspecified - 18-03-11 13:49
0000312
 
At 18cm there is LO problem on MFFE-16/RT4, intermittent.
0.unknown/unspecified - 18-03-11 13:45
0000317
 
The TP of CY/MFFE-07 is unstable at Lband, it drops out sometimes.
0.unknown/unspecified - 18-03-11 13:43
0000332
 
At 3.6cm there are no TPs(or TPs are too low) from CX,CY(MFFE-07).
0.unknown/unspecified - 18-03-11 13:40
0000323
 
There is an intermittent LO(or LO locking) problem on RTD/MFFE-12 at 1681MHz.
LO high - 07-03-11 12:59
0000330
 
9Y gives no signal for 6cm in all 8 bands
0.unknown/unspecified - 07-03-11 12:53
0000319
 
Total power 4X unstable at a 10-20% level
total power - 12-01-11 12:48
0000320
 
RT4 mffe016 UHFhigh antenna gets stuck.
0.unknown/unspecified - 12-01-11 12:45
0000306
 
The cryo-temperature of RTD(MFFE-09) is high and unstable.
0.unknown/unspecified - 13-12-10 10:19
0000307
 
On RT0/MFFE-15 there is the LO locking problem at 92cm, intermittent.
0.unknown/unspecified - 13-12-10 10:16
0000293
The TPs of 4X,4Y and the Ampls of 4X*X,4Y*Y are unstable in all bands and at all frequencies.
0.unknown/unspecified - 26-11-10 14:07
0000298
 
The cryo temperature is high on RT2(MFFE-12).
0.unknown/unspecified - 26-11-10 14:01
0000299
 
The cryo temperature is high on RT4(MFFE-08).
0.unknown/unspecified - 26-11-10 13:57
0000295
 
No correlated data from RTC (mffe07) at 13cm ,92cm,UHFhigh(a problem from LO-low)
0.unknown/unspecified - 23-11-10 10:21
0000283
The TPs of DX,DY are too low from the MFFE-11 at 6cm,21cm.
0.unknown/unspecified - 11-10-10 13:01
0000281
 
No correlated data from BY 6cm. MFFE-010
0.unknown/unspecified - 16-09-10 13:06
0000285
 
The cross correlations of 7X*X,7Y*Y(MFFE-01) have no Ampls at Lband, intermittent.
0.unknown/unspecified - 31-08-10 14:29
0000282
 
Sometimes no correlated data from RT8 XY due to strange pointing behaviour.
0.unknown/unspecified - 20-07-10 09:19
0000265
MFFE-11 in RTD rotator stuck.
feedrevolver - 19-05-10 14:56
0000202
 
The TP of 1Y(MFFE-08) is unstable at Lband.
0.unknown/unspecified - 26-03-10 14:56
0000228
 
At Lband there is no noise source step at AY(MFFE-13), intermittent.
0.unknown/unspecified - 26-03-10 14:53
0000246
 
The TP of 1X/MFFE-08 is unstable at Lband, intermittent.
0.unknown/unspecified - 26-03-10 14:42
0000257
 
The TP of AX(MFFE-13) is unstable.
0.unknown/unspecified - 26-03-10 14:10
0000225
MFFE010 in RTD warmed up.
cooling/cryostat - 12-02-10 10:41
0000227
 
MFFE03 in RT9 X channel has high Tsys at 6cm (120-130K)
0.unknown/unspecified - 07-02-10 10:36
0000181
 
The Ampls of 7X*X(MFFE-05) are 50% lower at UHFhigh.
0.unknown/unspecified - 05-02-10 11:05
0000226
 
MFFE03 in RT9 shows a negative or very small noise source step
noise source - 04-02-10 13:57
0000218
 
The cross correlations of 9X*X,9Y*Y(MFFE-11) have no Ampls at Lband.
0.unknown/unspecified - 03-02-10 11:07
0000194
 
Because of LO locking problem the cross correlations of 7X*X,7Y*Y(MFFE-05) have no Ampls at 92cm/21cm quite often.
0.unknown/unspecified - 03-02-10 10:57
0000210
 
The Ampls of the cross-correlations 0Y*Y are unstable at Lband.
0.unknown/unspecified - 03-02-10 10:52


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