# glish setup script for galactic 21 cm spectral line observing # using the Spectrometer # # Setup for dual linear polarization, 50 MHz bandwidth, 16384 channels, # 30-second integration time. # Use frequency switching. # include '/home/astro-util/src/glish/gfuncs/gbtsetup.g' # switching mode data for position switching # The noise cal/frequency switch cycle is 1 second period (swper). # Frequency is switching +/- 2 Mhz. # swdat := [ mode='sp', type='fsw', swper=1.0, df=[ -2, +2] ] # Receiver setup rcv_par := [ cal='lo', pol='lin', beams='B1', xfer='off'] # Velocity info # Galactic observing usually uses LSR frame, radio definition. velinfo := [ v=[ 0.0, 0.0], frame='lsrk', vdef='radio'] # Spectrometer params spect_par := [ levels=9, quads=2] # master setup routine: # gbtsetup( , , , , , # , sw=, rcv=, # vel=, df=, # back_par= gbtsetup( 'Rcvr1_2', 'spec', 'acs', 1420.4058, 50, 30.0, sw=swdat, rcv=rcv_par, vel=velinfo, df=0.0, back_par=spect_par) exit