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

Vivek Dhawan vdhawan at nrao.edu
Tue Nov 26 16:57:01 EST 2013


Actually, in Ken's pre-Rick tests, (where I think he uses X+K) we
found no examples of bad behavior

Subsequent tests will certainly include X+K, our standard setup,
with the new function.

On Tue, November 26, 2013 14:51, Bryan Butler wrote:
|
| 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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