!  GRB observing control file
!  Uses 1 GHz recording mode at 20cm
!  Based on egrdbe2.key
!  Keith Bannister (26 Sep 2012)
! 
!  Example of a control file using the new RDBE and MARK5C
!  wideband digital backend and recorder.  This is a rather
!  simpler example than egrdbe.key.  But it still exercises
!  one complexity - it uses Green Bank at a band where there 
!  needs to be sideband inversion at the correlator (IFs 
!  inverted).  It also sets FREQ on a scan, which can trigger 
!  trouble in the VEX code so this tests that capability.
!
!  Note that the sideband inversion scheme is thought to work
!  on the DiFX correlator, but has not been verified as of 
!  Feb. 2012.
!
!  As a demo, this example uses relatively simple setup files.
!
!  Unlike egrdbe.key, there is no attempt here to do parallel
!  Mark5A recording.
!
! ==========================================================
! =================  Cover Information  ====================
! ==========================================================
!  Schedule written by Craig Walker. Edited by Keith Bannister

 version = 1
 expt    = 'Rapid GRB follow-up with the LBA'
 expcode = TU002BB

 piname   = 'Keith Bannister'    
 address1 = 'CSIRO Astronomy and Space Science'
 address2 = 'P. O. Box 76'                           
 address3 = 'Epping NSW 1710'
 address4 = 'Australia'
 phone    = '+61 2 9372 4295 '    
 obsphone = '+61 2 9372 4295 '     
 email    = keith.bannister@csiro.au
 fax      = ' '   
 obsmode  = '20cm wideband continuum'
 obstype  = VLBA
 note1    = ' ' 
! ==========================================================
! ==============  Correlator Information  ==================
! ==========================================================
!  Note that enough channels should be requested to have channel
!  bandwidths of no more than 0.5 MHz.  Otherwise there is risk
!  of smearing the data because of uncertainties in the a priori
!  delays used for correlation.
 
correl   = Socorro
coravg   = 2
corchan  = 64
cornant  = 10
corpol   = on
corwtfn  = uniform
corsrcs  = standard
cortape  = FTP
corship1 = 'Keith Bannister'
corship2 = 'P. O. Box 76'
corship3 = 'Epping NSW 1710 AUSTRALIA'

! ==========================================================
! ==================  Program control  =====================
! ==========================================================
!    Normally SCHED will not overwrite preexisting files. 
!    If you want this protection, comment this following line.
 overwrit

!    Set the items desired in the scan listing in the .sum file.
 sumitem  = el1, early

! ==========================================================
! ======= Standard Source and Station Catalogs  ============
! ==========================================================
!    Be sure to use the station and freq files that have the
!    right hardware specifications and IF bandwidth for the
!    RDBE/MARK5C system.  These are not the SCHED defaults (yet).

srcfile  = $SCHED/catalogs/sources.vlba
freqfile = $SCHED/catalogs/freq_RDBE.dat
stafile  = $SCHED/catalogs/stations_RDBE.dat

! ==========================================================
! =======================  Setup files  ====================
! ==========================================================
!  RDBE  Setups using the PFB personality.
!  The bbsyn values must be N*32 + 16 for N between 17 and 32
!  The N=32 option will give corrupted data, but is needed if it is
!  desired to put all 16 channels in one polarization as in the
!  second example setup.
!  Note that bbsyn = abs( freqref + freqoff - firstlo ) and is 
!  the frequency within the IF of the DC edge of the output baseband
!  channel.  the firstlo value is normally picked up from the 
!  frequency file.

! KB - I've had to experiment to get these right. 
! From fiddling around with the errors where it prints out BBSYN, it looks
! like the above formula is wrong, and
! BBSYN = abs(freqfreq + freqoff + firstlo ) + 32
! OK - we're doing dual polarisation with 256 MHz of bandwidth you can put anywhere
! in 512 MHz
! There are 2 20cm bands: 
! v20cm_1 1180-1588 MHz (B=408 MHz) lo1=2100 MHz
! v20cm_2 1376-1850 MHz (B=474 MHz) lo1=2400 Mhz
! By trial and error, I've found that freqref 596 works with the standard
! tuning set of 
! freqoff = 1040.0, 1008.0, 976.0, 944.0, 912.0, 880.0, 848.0, 816.0, 
! 784.0, 752.0, 720.0, 688.0, 656.0, 624.0, 592.0, 560.0
! Now, aiming for v20cm_1, it's only got 408 MHz of bandwidth, so we'll take
! bands across teh 408 MHz with a few gaps.
! max freqoff = 976 and min freqoff = 624.0 - below/above that you disappear outside the band
! Worst RFI is between 1530 and 1560, I think this corresponds to 1008 and 976
! 

setini = rdbe_db.20cm /
  dbe      = 'rdbe_pfb'
  nchan    = 16   
  bbfilt   = 32.0  
  bits     = 2
  netside  = U
  pol      = dual 
  freqref  = 596
  freqoff  = 944.0, 944.0, 912.0, 912.0, 880.0, 880.0, 816.0, 816.0,
  			 752.0, 752.0, 688.0, 688.0, 656.0, 656.0, 624.0, 624.0 
  pcal     = '1MHz'
    / 
endset /


! ==========================================================
! ============Inline source catalog (GRB goes here) ========
! ==========================================================

SRCCAT /
SOURCE='GCNT28'    RA=23:37:4.80    DEC=61:51:0.00 EQUINOX='J2000' /
SOURCE='B0329+54' RA=03:32:59.368 DEC=+54:34:43.57 EQUINOX='J2000' /
ENDCAT /

! ==========================================================
! =================  Initial Scan Information  =============
! ==========================================================

year      = 2013
month     = 6
day       = 14
start     = 03:03:27


! ==========================================================
! ========================  The Scans  =====================
! ==========================================================
!          Interferometer schedules
!          See egrdbe.key for how to switch between MARK5A and
!          MARK5C files if doing piggyback observations.

! We assume 1 reference antenna and 3 sub arrays which periodically
! observe the calibrator
! 
! refant = LA
! arr1 = BR, PT, HN
! arr2 = OV, FD, SC
! arr3 = KP, NL
! Each array observes the source for 2 mins and the calibrator for 45 secs

gap = 0
Setup = rdbe_db.20cm


! Repeat the set of scans 10 times = 30 mintes
group 6 repeat 10

! Arr1 calibrating while arr2, arr3 on source
Source = J2339+6010  Dwell = 00:45 stations = LA, BR, PT, HN /
Source = GCNT28 Dwell = 1:00 stations = OV, FD, SC, KP, NL /

! Arr2 calibrating while arr1, arr3 on source
Source = J2339+6010  Dwell = 00:45 stations = LA, OV, FD, SC /
Source = GCNT28 Dwell = 1:00 stations = BR, PT, HN, KP, NL /

! Arr3 calibrating while arr1, arr2 on source
Source = J2339+6010  Dwell = 00:45 stations = LA, KP, NL /
Source = GCNT28 Dwell = 1:00 stations = BR, PT, HN, OV, FD, SC /


! Start using full array again - for final observations
stations = LA, BR, PT, HN, OV, FD, SC, KP, NL

! Observe calibrator
Source =  J2339+6010  Dwell = 2:00 /

! Observe bright pulsar as a check
Source = B0329+54      Dwell   = 2:00 /