!  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 (which has been removed).  
!  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.  EDIT: Dec 2012.  Now known to work.
!
!  As a demo, this example uses relatively simple setup files.
!
!  Jan 2012.  Add some scans with a setup file that tries to
!  put all 16 RDBE channels in the same polarization, with one
!  starting down from 1040 MHz.  That is the "0" channel in the
!  RDBE.  Either that one, or the one at 528 that goes below 
!  512, is required to have 16 output channels as the PFB wants.
!

! ==========================================================
! =================  Cover Information  ====================
! ==========================================================
!  Schedule written by Craig Walker

 version = 1
 expt    = 'RDBE test with mixed sidebands'
 expcode = egrd2

 piname   = 'Craig Walker'    
 address1 = 'National Radio Astronomy Observatory'  
 address2 = 'P. O. Box O'                           
 address3 = 'Socorro, New Mexico, 87801'
 address4 = ' U.S.A. '
 phone    = '575 835 7247 '    
 obsphone = '575 835 7247 '     
 email    = cwalker@nrao.edu  
 fax      = '575 835 7027 '   
 obsmode  = '6cm 128-4-2 '
 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  = 2
corpol   = on
corwtfn  = uniform
corsrcs  = standard
cortape  = FTP
corship1 = 'Craig Walker'
corship2 = 'P. O. Box O'
corship3 = 'Socorro NM 87801'

! ==========================================================
! ==================  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.  Here freqref has been set to equal the firstlo 
!  so that freqoff is the frequency in the IF - same as bbsyn.
!
!  For reference, the allowed values of bbsyn (or freqoff here) are:
!  bbsyn = 528.0, 560.0, 592.0,  624.0, 656.0, 688.0, 720.0,  752.0,
!          784.0, 816.0, 848.0,  880.0, 912.0, 944.0, 976.0, 1008.0
!
!  In the first example setup, 5MHz pcal is used as it makes a bit
!  more sense with these bandwidths.  But it does mean that the tones
!  (derived from 5 pulses per microsecond rather than 1) add more
!  to the system noise.  The second setup takes the default 1 MHz 
!  and is probably better for science, as opposed to test, observations.
!
!

setini = trdbe_db.1cm /
  dbe      = 'rdbe_pfb'
  nchan    = 16   
  bbfilt   = 32.0  
  bits     = 2
  netside  = L
  pol      = dual 
  freqref  = 21300.0
  freqoff  = 1008.0, 1008.0, 944.0,  944.0, 880.0,  880.0, 816.0,  816.0,
              752.0,  752.0, 688.0,  688.0, 624.0,  624.0, 560.0,  560.0
  pcal     = '5MHz'
    / 
endset /

setini = trdbe_rcp.1cm /
  dbe      = 'rdbe_pfb'
  nchan = 16  bbfilt = 32.0 bits = 2
  netside = L  pol = R
  freqref  = 21300.0
  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
    / 
endset /
! ==========================================================
! =================  Initial Scan Information  =============
! ==========================================================

year     = 2010
month    = 12
day      = 3
start    = 15:30:00

! ==========================================================
! ========================  The Scans  =====================
! ==========================================================
!          Interferometer schedules
!          See egrdbe.key for how to switch between MARK5A and
!          MARK5C files if doing piggyback observations.
!          Demonstrate PREEMPT while at it for optional ends
!          and protection from losing USNO for PT and MK

! A few optional VLBA scans at the start:
preempt = extra
stations = VLBA_HN, VLBA_LA, VLBA_PT, VLBA_BR, VLBA_MK

dwell = 4:40  gap =  20

setup = trdbe_db.1cm
source = '3C279' /
source = '3C279' /
source = '3C279' /

! Into the core and protect against USNO preemption:
preempt = no
stations = VLBA_HN, VLBA_LA, VLBA_PT, VLBA_BR, VLBA_MK, GBT_VLBA

group=18 rep=2

dwell = 4:40  gap =  20

setup = trdbe_db.1cm
source = '3C279' /
source = '3C279' /
source = '3C279' /
source = '3C279' /
source = '3C279' /
setup  = trdbe_rcp.1cm
source = '3C279' /

!  Try shifting the frequency.  Ch 4 and 5 were 22180.
!  This exercises the ability to frequencies on a per-scan basis.
setup  = trdbe_db.1cm
 freq=22308.00,  22308.00,  22244.00,  22244.00,
      22212.00,  22212.00,  22116.00,  22116.00,
      22052.00,  22052.00,  21988.00,  21988.00,
      21924.00,  21924.00,  21860.00,  21860.00

source = '3C279' /

source = '3C279' /
source = '3C279' /

! Reset to default frequencies.  Must set all to not keep old ones.
freq = 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0  
source = 'M84' /
source = 'M84' /
source = 'M84' /
source = 'M84' /
source = 'M84' /
setup  = trdbe_rcp.1cm
source = 'M84' /

setup  = trdbe_db.1cm
source = 'M84' /

source = 'M84' /
source = 'M84' /

! end loop

! Allow preemption at the end.
preempt = 'ok'
setup  = trdbe_db.1cm
source = '3C345' dwell = 25:00 /
source = '3C345' dwell = 25:00 /
source = '3C345' dwell = 25:00 /