!  Sched example for testing the new VLBA synthesizers.

!  Pretty much a direct copy of the file for a synthesizer test 
!  Aug 13, 2013.   That was adapted from tl002a.key and tl002c from July.

!  This file was run as tl003
!  Note that LA was the only station with a new synthesizer, so will
!  be the only one with the odd frequencies.

!   Header comments from tl003:
!  Start with the dual synthesizer tests
!  These went ok in tl002c, but collect more data for stability testing.
!  Get some long scans.

!    2 IF C band.  Avoid spikes - standard bands.
!             LOs 4100 (4612-5124) and 5900 (6412-6924)
!    2 IF C band with known likely LO in IF issue.
!             LOs 3600 (4112-4624) and 7900 (6876-7388)
!             Expect spike at 7200
!    S/X
!    S/X with wide X - uses all 3.

!    Do some fast switching between the two C band cases to see in detail
!    what happens at the start - when things are settled, without having
!    to wait for pointing or subreflector.


!  Then do the targeted tests.  Expecially do the one with a fractional
!  MHz setting as that failed in tl002a.

!      Targeted fringe test.  Use 2cm for most sensitive to noise.
!      Use different DDC tuning so can test offsets not possible 
!         at other antennas.
!      Change inactive output over full range while keeping active one
!         constant to look for changes.  This was done in tl002a but
!         I have not yet located the correlated results and they could
!         have been lost.

!
! ==========================================================
! =================  Cover Information  ====================
! ==========================================================
!
 version = 1
 expt    = 'A new synthesizer test'
!  expcode = tl003
  expcode = newsyn

 piname   = 'Craig Walker'    
 address1 = 'National Radio Astronomy Observatory'  
 address2 = 'P. O. Box O'                           
 address3 = 'Socorro, New Mexico, 87801'
 address4 = ' U.S.A. '
 phone    = '505 835 7247 '    
 obsphone = '505 835 7247 '     
 email    = cwalker@nrao.edu  
 fax      = '505 835 7027 '   
 obsmode  = '6cm 128-4-2 '
 obstype  = VLBA
 note1    = 'Testing the new synthesizers'

! ==========================================================
! ==============  Correlator Information  ==================
! ==========================================================
 
correl   = VLBADiFX
coravg   = 1.0
corchan  = 256
cornant  = 10
corpol   = on
corwtfn  = uniform
corsrcs  = standard
cortape  = FTP
corship1 = 'Craig Walker'
corship2 = 'P. O. Box O'
corship3 = 'Socorro NM 87801'
cornote1 = 'Please correlate 225 2 21:15:16 to 21:19:04'
cornote2 = 'with 0.1 second integration and 32 channels.' 
cornote3 = 'These are the last few scans.  They have fast switching.'

! ==========================================================
! ==================  Program control  =====================
! ==========================================================
 overwrit
 sumitem  = el1, early

! ==========================================================
! ======= Standard Source and Station Catalogs  ============
! ==========================================================
! Standard source catalogs are sources.gsfc and sources.rfc.
srcfile  = $SCHED/catalogs/sources.rfc
stafile  = $SCHED/catalogs/stations_RDBE.dat
freqfile = $SCHED/catalogs/freq_RDBE.dat

! ==========================================================
! ================  Setup files  =====================
! ==========================================================

!  A 2cm file with the ddc with 4 channels of 16 MHz.  All
!  stations tuned the same way with a 0.25 MHz offset for pcal.

setini = stdz1.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600  bbsyn= 669.25,669.25, 685.25,685.25  /   
endset /

!  Set tuning to non-even MHz.  But since the DDC doesn't necessarily
!  like frequencies other than multiple of 0.25, use one of those.
!  The LA setup doesn't match a freq.dat entry so specify everything.
!  The checking for the legacy system is going to get in our way.
!  When I set the new synthesizer to a fractional MHz, the pcalx
!  frequencies are declared bad by cksched.  So try 2 files, one
!  with the pcal off and a fractional setting.  The other with an
!  even MHz setting, but just not 500+-100 MHz.  Sched already rounds
!  of the synth setting for the legacy system to something that won't
!  abort.  

!  Fractional MHz offset.
setini = stdz2.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600
  bbsyn= 669.25,669.25, 685.25,685.25  ! 15269.25,15285.25
   /
  pcal = 'off'
  station='VLBA_LA'  modetest  firstlo = 14620.50 
  bbsyn= 648.75,648.75, 664.75,664.75  synth = 14.62050, 15.6, 15.6
  ifchan = B, D, B, D  pol = dual  fe='omit', '2cm', 'omit', '2cm'
  /
endset /

!  Even MHz offset from possible frequencies of old units.
setini = stdz3.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600
  bbsyn= 669,669, 685,685  ! 15269.25,15285.25
   /
  station='VLBA_LA'  modetest  firstlo = 14620
  bbsyn= 649, 649,  665, 665  synth = 14.62, 15.6, 15.6
  ifchan = B, D, B, D  pol = dual  fe='omit', '2cm', 'omit', '2cm'
  /
endset /

!  With the offset tuning in place, set the unused synthesizer to 
!  various odd values.  Mainly do opposite ends of range
!  Use normal VLBA tuning.
!  Sched warns of possible birdies at 600 and 900 MHz, among othere.
!  So cover those in basebands.


setini = stdz_u1.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600  
  bbsyn= 590.25,590.25, 926.25,926.25  synth=14.6, 2.1, 15.6 /
endset /
  
setini = stdz_u2.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600  
  bbsyn= 590.25,590.25, 926.25,926.25  synth=14.6, 2.1, 15.6 /
endset /
   
setini = stdz_u3.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600  
  bbsyn= 590.25,590.25, 926.25,926.25 synth=14.6, 15.9, 15.6 /
endset /

setini = stdz_u4.2cm / 
  dbe = rdbe_ddc  netside= U  sideband= U
  bbfilt= 16      nchan= 4    pol= dual    bits= 2
  firstlo= 14600  
  bbsyn= 590.25,590.25, 926.25,926.25  synth=14.6, 8.1, 15.6 /
endset /
   
! Sequence for geodesy.
! Near - redundant 4 element sequence with 6 spacings
! Spacing:  0 1 4 6,  Pairs:  1 4 6 3 5 2 which is all.
! The short spacings at the ends helps with RMS spanned band.
! Span say 75 *  = 472 (leave 20 MHz unused on each end).
! Assume 14400 for the LO.

! Not used in tl003
setini = stdzgeo.2cm /
  dbe = rdbe_ddc  
  nchan    = 4
  bits     = 2
  bbfilter = 32.0
  freqref  = (14400+512+15.25)
  freqoff  = 0, 75.0, (4*75.0), (6*75.0)
  netside  =  U, U, U, U, U, U, U, U
  pol      = rcp
  /
endset /


!  Now the setups that use both sides of the synthesizer:

!    2 IF C band.  Avoid spikes - standard bands.
!             LOs 4100 (4612-5124) and 5900 (6412-6924)

setini = TwoLO_1.6cm / 
  dbe = rdbe_ddc    netside = U  sideband = U
  bbfilt= 16      nchan= 4    pol= rcp   bits= 2
  firstlo =  4100, 4100,  5900, 5900
  bbsyn= 844.25,860.25, 780.25,796.25    ! avoid crossover at 886
  /
endset /

!    2 IF C band with known likely LO in IF issue.
!             LOs 3600 (4112-4624) and 7900 (6876-7388)
!             Expect spike at 7200 (bbc 700)

setini = TwoLO_2.6cm / 
  dbe = rdbe_ddc  netside = U  sideband = U, U, L, L
  bbfilt= 16      nchan= 4    pol= rcp   bits= 2
  firstlo =  3600, 3600,  7900, 7900
  bbsyn= 844.25,860.25, 707.75, 691.75
  /
endset /

!    S/X

setini = TwoLO.sx / 
  dbe = rdbe_ddc  netside = U  sideband = L, L, U, U
  bbfilt= 16      nchan= 4    pol= rcp   bits= 2
  firstlo =  2900, 2900,  7600, 7600
  bbsyn= 680.25,664.25, 780.75, 796.75
  /
endset /

!  Wide X   (can't use all 3 - would need 2 RDBE or test with legacy)

setini = TwoLO.dualx / 
  dbe = rdbe_ddc  netside = U  sideband = U, U, L, L
  bbfilt= 16      nchan= 4    pol= rcp   bits= 2
  firstlo =  7600, 7600,  9400, 9400     dualx
  bbsyn= 680.25,664.25, 796.75, 780.75
  /
endset /


!  See tl002a.key for the geodetic stuff on Aug 14.


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

year     = 2013
month    = 8
day      = 13
start    = 19:00:00  ! 13:00


! ==========================================================
! ========================  The Scans  =====================
! ==========================================================

 stations = VLBA_NL, VLBA_LA, VLBA_KP, VLBA_OV, VLBA_BR

!  Repeat the whole thing twice.
group = (6+4+3+4+10)  rep=3

!  Select a decent source for the test.
! source = '0355+508'   !  NRAO150
! source = '0552+398'   !  DA193
source = '0923+392' ! PT-LST range 06h-12h  pt source 

!  Switch some between the scan with all antennas set the same and the
!  one with LA offset.

setup = stdz1.2cm  dwell = 2:00 /
setup = stdz3.2cm  /
setup = stdz2.2cm  /
setup = stdz1.2cm  /
setup = stdz2.2cm  /
setup = stdz3.2cm  /
!    6 scans.

!  Testing settings of unused output channel.

setup = stdz_u1.2cm dwell = 2:00 /
setup = stdz_u2.2cm /
setup = stdz_u3.2cm /
setup = stdz_u4.2cm /
!    4 scans

!  Repeat of the different setting tests.  Make these long.  Before
!  I had the long ones first to help setup, but I don't think that
!  mattered.  Here we want to actually get the long ones.

setup = stdz1.2cm  dwell = 10 /
setup = stdz2.2cm  /
setup = stdz3.2cm  /
!    3 scans

! Now the dual synthesizer tests.  Repeat the ones from tl002c
! Make moderately long scans first.

setup = TwoLO_1.6cm dwell=5:00 /
setup = TwoLO_2.6cm  /
setup = TwoLO.sx     /
setup = TwoLO.dualx  /
!    4 scans

!  Do some fast switching of the synthesizers at 6cm
setup = TwoLO_1.6cm dwell=20 /
setup = TwoLO_2.6cm  /
setup = TwoLO_1.6cm dwell=20 /
setup = TwoLO_2.6cm  /
setup = TwoLO_1.6cm dwell=20 /
setup = TwoLO_2.6cm  /
setup = TwoLO_1.6cm dwell=20 /
setup = TwoLO_2.6cm  /
setup = TwoLO_1.6cm dwell=20 /
setup = TwoLO_2.6cm  /
!    10 scans