[daip] 4IF mode

[Data Analysts]

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>From ip at sunstar4.leeds.ac.uk Fri Jun 28 04:29 MDT 2002
Date: Fri, 28 Jun 2002 11:27:43 +0100 (BST)
From: Ian Pattison <ip at sunstar4.leeds.ac.uk>
X-X-Sender:  <ip at sunstar1>
To: <analysts at zia.aoc.NRAO.EDU>
Subject: 4IF mode
MIME-Version: 1.0
X-Lines: 31
Status: RO

I have data obtained in the 4 IF mode (8 channels of 3.125 MHz). Channel 1
gets scrapped (online I assume) and replaced with the "channel 0". This
leaves 7 channels to work with. I have heard that end channels should not be
used (due to high noise). Should I thus scrap channel 8, after bandpass
calibration, thus only leaving 6 of the original 8 channels ?

If you can't answer this, I'd appreciate you passing it on to someone.

Thankyou,


Ian Pattison

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::                                            ::
::               Ian Pattison                 ::
::                                            ::
::Department of Physics & Astronomy           ::
::University of Leeds                         ::
::LS2 9JT                                     ::
::United Kingdom                              ::
::                                            ::
::Tel: +44 (0)113 2333872                     ::
::email: ip at ast.leeds.ac.uk                   ::
::WWW: http://ast.leeds.ac.uk/~ip             ::
::                                            ::
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