IF2 Synth gpib problems 09-11sep12

10sep12

Intro:

    The if/lo system has two IFS:

The problem

a2705 : cband galactic mapping:

       a2705 reported that the data in some of their frequency bands did not look correct for their mapping data on 10sep12. The data looked correct on 11sep12.
I computed the average spectra for the  mapping data on
The plots show  the average spectra for the two days (.ps) (.pdf):

x111 rfi monitoring data on 09sep12,10sep11.

    I also went back and looked at the x111 rfi monitoring data  taken on 09sep12,10sep12.
The plots show a 60 second average spectra taken in 4 different 25 MHz frequency bands on 09sep12 (.ps) (.pdf)


Timeline


    Below of is a timeline  of when things occurred that affected the synthesizers that failed:


Which projects were affected:

The table below shows the experiments that were affected:


date:
time(AST)
PROJECT
status
Notes
09sep11
3:00 - 4:15
x111
ok
rfi monitoring
4:30-8:30
R2511
ok
bistatic radar moon
10:29
-
-
da reboot, synths fail
10:30-14:00
P1693
bad
327 pulsar search
14:00-16:30
x111
bad
rfi monitoring
17:00-20:00
P2679
bad
pulsars Joanna..Table below shows indices for bad,/ok files
badfiles
okfiles
b0s1g0
b2s1g0
b4s1g0
b6s1g0
b1s1g0
b3s1g0
b5s1g0
20:00-24:00
a2130
ok
galfacts. used alfa so no problems
10sep11
00:00-02:30
a2130
ok
02:30-3:30
a2130
ok
used alfa
03:30-5:00
p2724
ok
pulsars, ingrid. I think they used puppi. Puppi does not used these synthesizers.
05:00-09:00
R2511
ok
radar bistatic, moon. For transmit they don't use these 4 synths.
09:00-16:30
maint


16:30-18:30
x111
bad
rfi monitoring
18:30-22:30
a2705
bad
adam ginsburg, cband mapping The table below shows the bad/ok files
badfiles
b0s1g0
b2s1g0
b4s1g0
b6s1g0
okfiles
b1s1g0
b3s1g0
b5s1g0
11sep11
22:30-24:00
a2010
ok
used alfa
00:00-04:15
04:15-06:00
x111
bad
rfi monitoring
06:00-10:00
R2511
ok
radar bistatic moon.
11:00


Synths power cycled. if2Prog restarted. Synths not working


To do:

    This problem seem to be happening more often with the downstairs synthesizers. Some this to do are:


processing: x101/120910/a2705cb.pro, badsynth.pro

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