[evlatests] P-band switched power

Paul Demorest pdemores at nrao.edu
Tue Jul 12 12:51:28 EDT 2016


Yes, I think that certainly explains why ea01 looked so good in that 
test.  Vivek also noted this lack of P-band switched power in ea01 a few 
weeks ago (email to evlatests June 17).

-Paul

On 2016-07-12 08:21, Claire Chandler wrote:
> That seems to be consistent with Paul's report of the effect of the
> P-band switched power on S-band for ea01 from June 17: i.e., P-band
> appeared to have no effect.  Now we know why?
> 
> Claire
> 
> On Tue, 12 Jul 2016, Rick Perley wrote:
> 
>>    I neglected to look at the switched power from the P-band data 
>> taken yesterday.  Here's the result of doing so this morning:
>> 
>>    EA01 has zero 'PDif' -- the data show a zero-mean noise.  There is 
>> (rather low) stable value for the 'PSum', so it appears the noise 
>> diode is not being switched.
>> 
>>    All others show fine, stable 'PDif'.
>> 
>> 
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