Radio-Frequency Interference: Difference between revisions

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[[Category:EVLA]][[Category:Calibration]]
[[Category:EVLA]][[Category:Calibration]]
== Temporary edit link ==
[http://casaguides.nrao.edu/index.php?title=Radio-Frequency_Interference&action=edit edit me in CASA Guides]


== Overview ==
== Overview ==


The radio spectrum is used by many non-astronomers, so techniques for dealing with radio-frequency interference (RFI) are very important for conducting successful observations, especially at low frequencies.
The radio spectrum is used by many non-astronomers, so techniques for dealing with radio-frequency interference (RFI) are very important for conducting successful observations, especially at low frequencies.
A brief discussion of RFI characteristics and basic excision techniques from the 2010 summer school can be found here: [http://www.aoc.nrao.edu/events/synthesis/2010/lectures/pen_vla_school_rfi.pdf  PDF of lecture slides]


== Planning observations around RFI ==
== Planning observations around RFI ==
The NRAO maintains a database of known RFI lines, available as both lists and spectra : [https://science.nrao.edu/facilities/evla/observing/RFI/index  RFI] which can be used to select RFI-free spectral windows when planning the correlator setup for your observations.


== Recognizing RFI ==  
== Recognizing RFI ==  


== Flagging RFI ==
== Flagging RFI ==

Latest revision as of 00:23, 18 August 2012


Temporary edit link

edit me in CASA Guides

Overview

The radio spectrum is used by many non-astronomers, so techniques for dealing with radio-frequency interference (RFI) are very important for conducting successful observations, especially at low frequencies.

A brief discussion of RFI characteristics and basic excision techniques from the 2010 summer school can be found here: PDF of lecture slides

Planning observations around RFI

The NRAO maintains a database of known RFI lines, available as both lists and spectra : RFI which can be used to select RFI-free spectral windows when planning the correlator setup for your observations.


Recognizing RFI

Flagging RFI