Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/people/Tasso.Tzioumis/sched/Examples_Setup_Files.html
Дата изменения: Unknown
Дата индексирования: Sun Apr 10 11:20:44 2016
Кодировка:
Поисковые слова: eclipse

Examples of Setup Files

The standard setup files described above (Section 3.6.1) can be used as examples. However a few of them are shown here to show what they are like to someone who does not have easy access to the machine readable files.

The first example is of a minimal setup file of a sort that might be imbedded in a SCHED input file. It includes the lines needed for that imbedding. This specifies a 4 channel, 8 MHz/channel, dual polarization, 2 bit per sample mode (sometimes called 128-4-2 -- 128 is the total number of bits per second) for observations near 15 GHz. It is invoked in the schedule by including ``setup=egvlba.2cm'' among the inputs for a scan. This is all many users will need.

setini = egvlba.2cm /
  band='2cm'  nchan=4  bbfilt=8.0  pol=DUAL  bits=2 /
endset /

This example is for a Mark III mode B observation. This shows a number of items being specified that do not actually need to be specified since the defaults are reasonable. In particular, these are the track assignments and the pulse cal extractor assignments. The example just shows how one might specify all of these items if desired. Please start with the standard m3b6cm.set, rather than this, for any real observations.

This example is definitely out of date in detail since the Mark III tape recording system was abandoned long ago. But is shows what can be done in terms of a detailed setup. Someday, it should be updated to a currently used system.

 --------------------------------------------------------------------
 EXAMPLE:   Mark~III observations, Mode B (with extra inputs)
 --------------------------------------------------------------------
! m3b6cm.set
!  Tape length  Density  Tape speed  Time/pass
!     17600      High      80.0         44:00
!      8800      Low      135.0         13.02
nchan = 14  samprate = 4.0  bits = 1  bbfilter = 2.0  !   56 Mbps
tpmode = 2  format = MARKIII
bbc      = 1,  1,  2,  2,  3,  3,  4,  4,  5,  5,  6,  6,  7,  7
netside  = L,  U,  L,  U,  L,  U,  L,  U,  L,  U,  L,  U,  L,  U
ifchan  = L,L,L,L,L,L,L, L,L,L,L,L,L,L
freqoff = -16, -16, -12, -12, -8, -8, -4, -4, 0, 0, 4, 4, 8, 8
track1=4,18,6,20,8,22,10,24,12,26,14,28,16,30
track2=5,19,7,21,9,23,11,25,13,27,15,29,17,31
pcalxb1  =  S1,  S2,  S3,  S4,  S5,  S6,  S7,  S8,
            S9, S10, S11, S12, S13, S14,  S1,  S2
pcalxfr1 = 990,  10, 990,  10, 990,  10, 990,  10,
           990,  10, 990,  10, 990,  10,1990, 1010
!    Radio Astronomy allocation: 4990-5000
!    Radio Astnomomy footnote:   4950-4990
!    VLA 50MHz 4960.1 to 5010.1 with VC mode.
!        VLA 6cm receiver falling off at high end.
station  = VLBA
freqref  = 4990.99  !  Mark II network standard.
fe(1)    = '6cm'   fe(3) =  '6cm'
synth(2) = 4.1
firstlo  = 4100.00    rchan = A  lchan = C
   /
station  = VLA27
vlaband  = VC     vlabw = '0000'
firstlo  = 4360.10    rchan = A  lchan = C
   /
station  = VLA1
fe(2) = '6cm'  fe(4) = '6cm'
rchan    = B  lchan = D
   /
station  = GB_VLBA
fe(1)    = '6cm'   fe(3) =  '6cm'
firstlo  = 4260.0   rchan = A  lchan = C
   /
station  = EB_VLBA
firstlo  = 4100.0   rchan = A  lchan = C    /

This example shows a setup file for dual frequency, wide spanned bandwidth, geodetic style observations. Note that the firstlo has to be specified separately for each channel because it varies.

! Standard setup file: vgeo-256-8-2.set                        
!     (Produced by MAKESETUP)
!  For dual frequency, single polarization, 13cm/4cm observations.
!  Changed to use RDV frequencies (but ending in .49) 27 Feb 2002  RCW.
!  Changed again to follow RDV away from satellite radio  29Jul2004 RCW.
!  Move to offset frequency of 0.75 to conform to the combination of
!  frequency between the DDC and the legacy systems.  Jan. 10, 2014.  RCW.
!  RDV32 uses: 2225.99, 2255.99, 2345.99, 2365.99
!              8405.99, 8475.99, 8790.99, 8895.99
!  RDV45 uses: 2232.99, 2262.99, 2352.99, 2272.99 and same X as above.
! ***  Geodesy reference frequecies ***
!        Space Research (eg DSN) allocation: 2290-2300
!        Space Research (eg DSN) allocation: 8400-8450
!        Satellite radio 2320-2345.
!      256 Mbps  64 MHz
  nchan    = 8
  bits     = 2
  bbfilter = 8.0
  freqref  =   2232.75,  2232.75,  2232.75,  2232.75,  8405.75,  8405.75,
               8405.75,  8405.75
  freqoff  =  0.0, 30.0, 120.0, 140.0, 0.0, 70.0, 385.0, 490.0
  netside  =  U, U, U, U, U, U, U, U
  pol      = rcp
  /