[evlatests] Oddities at L-band (pointing, Tcal, Tsys, Psum, etc.)

Bryan Butler bbutler at nrao.edu
Tue Aug 13 13:22:14 EDT 2013


i think rich fixed MCAF so that the value in the SDM is referenced to 
the middle of the subband, not the lower edge.  if so, it got deployed 
to production yesterday, and should have been in place for rick's test.


Barry Clark wrote, On 8/13/13 10:42 :
>
> This is due to the (ahem) feature that the Tcal stowed in the SDM
> is the interpolation to the subband reference frequency (lower
> edge) combined with the fact that the bandpasses of these receivers
> appear to go really whacky below about 1150 MHz.
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