Examples

Define Airy beams for ALMA antenna types

vp.reset()
vp.setpbairy(telescope='ALMA',
dishdiam='11m',
blockagediam='0.75m',
maxrad='1.784deg',
reffreq='1.0GHz',
dopb=True)
myid1 = vp.getuserdefault('ALMA')

vp.setpbairy(telescope='ALMA',
dishdiam='6m',
blockagediam='0.75m',
maxrad='3.5deg',
reffreq='1.0GHz',
dopb=True)
myid2 = vp.getuserdefault('ALMA')

vp.setuserdefault(myid1, 'ALMA', 'DV')
vp.setuserdefault(myid1, 'ALMA', 'DA')
vp.setuserdefault(myid1, 'ALMA', 'PM')
vp.setuserdefault(myid2, 'ALMA', 'CM')

This will define Airy disk primary beams for all four antenna types
available in the Atacama Large MM/sub-mm Array.