[daip] [Fwd: more on AVSPC]

[Leonia Kogan]

Having discussed with Gustaaf the identity of the outputs for the four 
following groups we arrived to the following conclusion/explanation:

Gustaaf's input data has 8 frequency channel. He played with the range 
of averaged channels 2-6. This range is close to the 75% range 2-7 (for 
his data number of channel 8.). So the explicit averaging has to give 
almost identical output as the default (75%) averaging. I think his 
identity was not perfect.

Anyway I think this is the explanation.

Leonia

-------- Original Message --------
Subject: [daip] more on AVSPC
Date: Wed, 18 Apr 2007 15:34:15 -0600
From: Gustaaf van Moorsel <gvanmoor at nrao.edu>
Organization: NRAO
To: daip at nrao.edu

In my previous e-mail, I may have confused the issue unnecessarily
by varying the channel increment.  To simplify the AVSPC question
I now ran AVSPC four times on the same dataset containing 2 IFs.

ICHANSEL=2,6,1,1
ICHANSEL=2,6,1,1,2,6,1,2
ICHANSEL=2,6,1,2
ICHANSEL=2,6,1,2,2,6,1,2

All four give identical output.  Moreover, the inputs to AVSPC
in the history file are identical: IF 1: CHANSEL=2,6,1, and IF 2:
CHANSEL=2,6,1.  Is it therefore correct to assume that AVSPC ig-
nores the IF part of ICHANSEL?

Gustaaf

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