[evlatests] Strange Phase Behavior for ea22

Vivek Dhawan vdhawan at nrao.edu
Thu Feb 27 16:25:51 EST 2020


Thanks,

ea22 looks stable now. But it was not misbehaving continuously
even before that. We will keep and eye on it.

Vivek.

On Thu, February 27, 2020 12:59, Leon Abeyta via evlatests wrote:
| I just had Jerry back off by 6 dB. Delays will need to be set. Hope this
| helps the problem.
|
| Leon
|
| On 2/27/2020 10:26 AM, Vivek Dhawan via evlatests wrote:
|> Thanks Leon,
|>
|> Today is a test, day if someone is available. Monday or Wednesday next
|> week also would work.
|>
|> On 2/27/20 9:13 AM, Leon Abeyta via evlatests wrote:
|>> I noticed that the L305 in ea22 is being over-driven by a few dB. If
|>> anyone is interested, I can investigate fixing that on a maintenance day.
|>>
|>> Leon Abeyta
|>>
|>> On 2/26/2020 10:34 AM, Rick Perley via evlatests wrote:
|>>>  Â Â Â  Beam cuts were taken last night, as part of our optics
|>>> alignment program.    Bands observed were from X through Q.
|>>> Stability was exceptional (as we might expect on a cold, clear, calm
|>>> night).
|>>>
|>>>  Â Â Â  All antennas behaved exceptionally well, except one. 
|>>> ea22
|>>> has phase oscillations many times larger than they should be.
|>>>
|>
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