[evlatests] RFI Report..... an addition to Rick's list

[Stan Kurtz]

In K-band, one should also stay away from 19700 to 20200 MHz,
at least when observing towards the south.
This is evidently from the Wildblue-1 (ISP) satellite, and will
be more fully documented in an upcoming RSRO report.

-Stan

---------- Forwarded message ----------
Date: Wed, 15 Dec 2010 11:28:04 -0700
From: Rick Perley <rperley at nrao.edu>
To: evlatests at aoc.nrao.edu
Subject: [evlatests] RFI Report

     Preparations for the 'flux densities' run has shown some notable
RFI, listed below.  All have likely been reported earlier -- I offer
this in case something was missed (or is new):

     L-Band:         The usual stuff.
     S-Band:          Satellite interference from 3700 MHz and up.  Seen
only when you point near the equator.  The usual very strong RFI is seen
in the lowest two subbands (with the center at 2.5 GHz).
     C-Band:     My two tunings are centered at 4.82 and 6.95 GHz.
Within these, the only notable RFI is at 6617 MHz -- already well known.
     X-Band:      My tunings are centered at 8521 and 9545 Mhz.  A very
few baselines showed weak RFI at 9373 MHz.  Otherwise, all was clean.
     Ku-Band:    My tunings were centered at 12512 and 15029 MHz.
Satellite RFI, seen only when pointing near the equator, was present for
all frequencies between 12000 and 12692 MHz.  Otherwise, all was clean.
     K-Band:    The RFI reported by Mark Claussen, extending from 18.3
through 18.8 GHz, was seen -- again only on sources near the equator.
My other tuning, centered as 22.805 GHz, was clean.
     Ka-Band:  Tunings were centered at 36.5 and 28.77 GHz.  The only RFI
noted was on all baselines with antenna 22, at 36.285 GHz.
     Q-Band:  All was clean.  Bands were centered at 48.36 and 43.66 GHz.


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