[daip] forwarded message from Bryan Butler

[Eric Greisen]

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From: Bryan Butler <bbutler at aoc.nrao.edu>
To: Eric Greisen <egreisen at nrao.edu>
Subject: Re: forwarded message from Michael Bietenholz
Date: Tue, 9 Mar 2004 09:37:51 -0700

On 2004.03.09 09:31, Eric Greisen wrote:
> 
> I have a data-set with VLA gain entries in CL1 (from FILLM,
> gaincurve+weather, default parameters) ranging from 0.90 (anten 1) to
> 1.14 (anten 3,14) for the same elevation (85 degs).
> 
> Is the variation in the gain curve between antennas this large?

yep.  at that high elevation you start to see it pretty well
(ditto for very low elevations of course).

> 
> Also the gain value being significantly less then 1.0 seemed odd, is
> this correct?

yep.  it's all relative anyway, so comes out in the calibration
wash...

	-bryan

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