[evlatests] More on Modcomp-Free

[Ken Sowinski]

On Tue, 22 May 2007, Rick Perley wrote:

>    I also reported on  Sunday that at L-band, in IFpair 2, in spectral
> line, the EVLA and VLA had no coherence in the X-baselines, but fringed
> nicely within themselves.
>
>    I have reviewed the data, and confirmed the effect.  But it occurred
> *only* within this dataset.  The L-band continuum data are fine, as are
> the spectral line observations taken at other bands, in the same mode
> ('4', with 12.5 MHz BW).

The easiest explanation is that the two systems had different
BD sky frequencies for that scan.  Either the BD Flukes were
set wrong or the BD L302s (all of them!) were set wrong, perhaps
because obs2script was confused.