[evlatests] Testing faster setup times (attenuators and requantizers)

Bryan Butler bbutler at nrao.edu
Tue Nov 26 16:51:40 EST 2013


indeed - i just wish rick had used that combination of bands in his test.


Ken Sowinski wrote, On 11/26/13 14:49 :
> On Tue, 26 Nov 2013, Bryan Butler wrote:
>
>>>      From this test, the 60 seconds initial setup is just sufficient.
>>> The 20 second requantizer change is generous, but only because of the
>>> chosen bands in my test.
>>
>> it would be good to do a test switching between, say, K-band and X-band,
>> to have a longer subreflector slew.
>
> That was the combination I used in my testing.  Twenty seconds is
> adequate in that case as well.  It was chosen to allow the maximum
> possible subreflector rotation of 180 degrees which, nominally,
> takes about 12 seconds.
>



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