[evlatests] Ant 04
Michael LeBlanc
mleblanc at nrao.edu
Tue Feb 12 09:34:29 EST 2008
Ken Sowinski wrote:
> On Fri, 8 Feb 2008, Michael LeBlanc wrote:
>
>> Rob Long wrote:
>>> Antenna 4 has three receivers installed (X, L, and Q bands) and all
>>> electronics needed to use them. There were problems in the
>>> M302/M303 wiring and fire alarm system over the last couple of days
>>> that caused power to cycle up and down numerous times. All modules
>>> were up and working properly, but after the power cycles we lost
>>> communication with the F320 and the M301.
>>>
>>> I looked into these yesterday and found that both modules are not
>>> loading slot ID properly. The M301 will be fixed today and when
>>> Wayne or Cody return from illness, we will talk with them about the
>>> F320 problem. Worst case, we can open the F320 and figure out what
>>> the MIB number is so that we can turn on the cal signal for first
>>> fringes.
>>>
>>> The ACU is talking in the antenna which turned out to be a faulty
>>> slot ID card. The servo group is finishing up some work today and
>>> Doug says that they plan on running servo tests at the beginning of
>>> next week.
>>>
>>> Rob
>>>
>>> _______________________________________________
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>>> evlatests at listmgr.cv.nrao.edu
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>>>
>>>
>>>
>> To all (FYI),
>>
>> The M301 is up and functional. The issues was a missed wired (all
>> wires) SlotID DB-9 connector of the module harness.
>
> I exuberantly took this to measn that the antenna rather than
> M301 was funtional. I can report that there are still a few
> problems, most likely know to all already.
>
> 1. There are FRM power problems.
> 2. No cals at X band, but apparantly at L and Q.
> 3. IF B DTS is not working right.
>
> If we are anxious for first fringes, 1. should be fixed first
> and the ACU declared operational. We can do without cals.
> The IF B DTS probably just needs to be reset.
>
>
>
To all Antenna 4 Update,
Both the T301 & F320 (SlotID works) are installed. Both are functional.
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