Examples: spw='0~2,4'; spectral windows 0,1,2,4 (all channels) spw='<2'; spectral windows less than 2 (i.e. 0,1) spw='0:5~61'; spw 0, channels 5 to 61 spw='0,10,3:3~45'; spw 0,10 all channels, spw
<casaxml xsi:schemaLocation="http://casa.nrao.edu/schema/casa.xsd file:///opt/casa/code/xmlcasa/xml/casa.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://casa.nrao.edu/schema/psetTypes.html">
<task category="calibration" name="gencal" type="function">
<shortdescription>Specify Calibration Values of Various Types</shortdescription>
The gencal task provides a means of specifying antenna-based
calibration values manually. The values are put in designated tables
and applied to the data using applycal. Several specialized
calibrations are also generated with gencal.
Current antenna-based gencal options (caltype) are:
- 'amp'= amplitude correction
- 'ph' = phase correction
- 'sbd'= single-band delay (phase-frequency slope for each spw)
- 'mbd'= multi-band delay (phase-frequency slope over all spw)
- 'antpos' = ITRF antenna position corrections
- 'antposvla' = VLA-centric antenna position corrections
- 'tsys' = Tsys from the SYSCAL table (ALMA)
- 'swpow' = EVLA switched-power gains (experimental)
- 'evlagain' (='swpow') (this syntax will deprecate)
- 'rq' = EVLA requantizer gains _only_
- 'swp/rq' = EVLA switched-power gains divided by requantizer gain
- 'opac' = Tropospheric opacity
- 'gc' = Gain curve (zenith-angle-dependent gain) (VLA only)
- 'eff' = Antenna efficiency (sqrt(K/Jy)) (VLA only)
- 'gceff' = Gain curve and efficiency (VLA only)
- 'tecim' = Time-dep TEC image specified in infile
- 'jyperk'= Jy/K factor via Jy/K DB Web API
<param mustexist="true" name="vis" type="path">
<shortdescription>Name of input visibility file</shortdescription>
<description>Name of input visibility file
Example: vis='ngc5921.ms'
<param name="caltable" type="string">
<shortdescription>Name of input calibration table</shortdescription>
<description>Name of input calibration table
If a calibration table does not exist, it will be
created. Specifying an existing table will result
in the parameters being applied
cumulatively. Only a single time-stamp for all
calibrations are supported, currently. Do not
use a caltable created by gaincal, bandpass,
Example: caltable='test.G'
<param name="caltype" type="string">
<shortdescription>The calibration type: (amp, ph, sbd, mbd, antpos, antposvla, tsys, evlagain, opac, gc, gceff, eff, tecim, jyperk)</shortdescription>
<description>The calibration parameter type being specified