COL FORMAT DESCRIPTION
1-4 //AN Identifies card as antenna wrap card.
5-60 A1I2 2 cols allotted for each antenna by serial number and not DCS address.
ANT ID COLS ANT ID COLS
A1 5-6 A15 33-34
A2 7-8 A16 35-36
A3 9-10 A17 37-38
A4 11-12 A18 39-40
A5 13-14 A19 41-42
A6 15-16 A20 43-44
A7 17-18 A21 45-46
A8 19-20 A22 47-48
A9 21-22 A23 49-50
A10 23-24 A24 51-52
A11 25-26 A25 53-54
A12 27-28 A26 55-56
A13 29-30 A27 57-58
A14 31-32 A28 59-60
The first column of each pair is for elevation specifications:
U Up, elevations > 90 degrees if possible.
D Down, use elevations < 90 degrees.
BLANK Don't care.
The second column of each pair is for azimuth specifications:
R Right, use CW wrap if two azimuths (differing by 360)
are possible.
L Left, use CCW wrap.
BLANK Don't care
71 A1 ARM ID (A):
A = All Arms
72 A1 ELEVATION "PLUNGE" SPECIFICATIONS (U, D, or BLANK) for arm
ID in col 71:
U Up, elevations > 90 degrees if possible.
D Down, use elevations < 90 degrees.
BLANK Don't care
73 A1 AZIMUTH "WRAP" SPECIFICATIONS (R,L, or BLANK), for arm
ID in col 71:
R Right, use CW wrap if two azimuths (differing by 360)
are possible.
L Left, use CCW wrap.
BLANK Don't care
74-76 A3 ANOTHER ARM ID PLUS AZ and EL specifications (and cols 77-79
if required)
There must be one card for each antenna. The file must be named ANTENNAS.
There is a "pure" version of the ANTENNAS file called SYSANTS. Except when
required, the file ANTENNAS should be identical to the file SYSANTS (some
exceptions are: single dish VLBI, Q band observing, multiple subarrays for
same or different programs).
There is only one ARRAY file which provides the system with temporal and
spatial coordinates. There are normally 3 cards for the ARRAY file,
however there can be a fourth card. Card #1 controls the TIME formats,
card #2 the COORDINATES OF THE POLE, card #3 has various CONTROL
FUNCTIONS, and card #4 (when used) has weather data. The card image
example will use card #4.
This option card must follow the source card it qualifies.
This block must preceed the source card(s) it modifies. The observer has the
option of specifying his own non-standard version of the default cards found
in the Subarray file(s). These are added by a special block of cards called
the Local Default Block.
The observer may select one of the seven standard band designations (CC, UU, KK, LL,
XX, QQ, and PP) as the first two characters of the local default card, or he may
choose his own two character band designation as long as he also includes an Alias
card afterward redefining his chosen band to one of the seven standard bands.
(WARNING: DO NOT use HH, 21, 18, VC, VK, or VL bands unless you check with operations
on possible conflicts.)
Local Default Block card image (example only)
The Offset Option Card comes in two varieties and must follow the source card
it qualifies. For more detailed information about the Raster Offset Mode,
consult the VLA computer memo 182 (May 4, 1991). The use of the Raster card
is defined by the field in COL 12-14; the two possibilities are: ANT or SKY.
Differences are noted where they are important. The Raster offset card is
specified by ANT in COL 12-14; this is the default if the field is left blank.
If cc 8-10 contains NOD and cc 12-14 is SKY then the following are assigned:
This option card must follow the source card it qualifies.
There must be one card for each antenna. The file must be named POINTING.
There is a "pure" version of the POINTING file called SYSPOINT. The file
POINTING should be identical to the file SYSPOINT. The format is a free
format (ie not column dependent) using a comma as a delimiter between the
various pointing terms. The below is a "suggestion" of which columns to
place the pointing terms -- however they must be placed in order.
This option card must follow the source list it qualifies.
This option card must follow the source it qualifies.
SYSTEM ANTENNA FILE
Antenna Card Format
COL FORMAT DESCRIPTION
1-5 I5 Antenna ID, ending in col 5 (right justified)
6-10 I5 DCS ADDRESS (in OCTAL), ending in col 10 (right justified)
13-15 A3 STATION ID (e.g. CW5), ending in col 15.
16-20 I5 DELAY LINE NUMBER, ending in col 20
BLANK the delay line number is assumed to be the decimal
equivalent of the octal DCS address.
25 I1 Modem channel number
40 A1 T elevations > 90 degees forbidden
BLANK elevations > 90 degees allowed
44 A1 A minus (-) sign indicates that this antenna is non-operational
and to be ignored
45 I1 Number of subarray to which antenna is assigned
(where n = 1 through 5)
50 Spare control field
51 A1 T turn off round trip phase correction for this antenna
55 A1 T turn off phase switching for this antenna (at antenna
and at correlator)
57-60 A4 T include this IF (A, B, C, D) in the analog sum
61-70 F10.4 Axis / Intersection defect (K-term)
"Typical" ANTENNAS card images (example only)
1 2 3 4 5 6 7
123456789012345678901234567890123456789012345678901234567890123456789012345678
1 31 CN9 9 1 TTTT .0055
2 6 CW8 2 2 TTTT .0029
3 4 DW2 1 1 TTTT -.0039
4 14 DE2 1 3 TTTT .0071
5 10 OUT 8 -1 -.0014
SYSTEM ARRAY FILE
Array Card Formats
Card #1 TIME
COL FORMAT DESCRIPTION
1-15 F15.5 dUT1 / dIAT in seconds per day
16-30 F15.0 MODIFIED JULIAN DATE upon which this linear
rate projects to UT1 = UTC
31-45 F15.5 IAT - UTC difference (number of leap seconds)
Card #2 COORDINATES OF THE POLE
COL FORMAT DESCRIPTION
1-15 F15.0 X relative to CIO in seconds of arc
(CIO = Conventional International Origin)
16-30 F15.0 Y relative to CIO in seconds of arc
(CIO = Conventional International Origin)
31-45 F15.0 DX / DT in seconds of arc per day (optional)
46-60 F15.0 DY / DT in seconds of arc per day (optional)
61-75 F15.0 MODIFIED JULIAN DATE EPOCH for X and Y (optional)
Card #3 CONTROL FUNCTIONS
COL FORMAT DESCRIPTION
1 I1 Controlling subarray for Spectral Line or Continuum
2 I1 Controlling subarray for integration time
3-10 I8 Controlling subarray(s) for each of the 8 FLUKE synthesizers
11 A1 T Feed-deicers ON
BLANK Feed-deicers OFF
12 A1 T Use estimated model values of refraction
BLANK Use measured values of refraction from weather station
13 A1 T Correlator self-test OFF
BLANK Correlator self-test ON
14 A1 T Staggered slew when generators are on (no SEC power)
BLANK Staggered slew OFF
15 A1 T Gated correlator observation (Pulsar observations)
BLANK Non-gated correlator observation
16 A1 T Use temperature, barometric pressure, dew point from
card #4
BLANK Use weather station data
17 A1 T Disable warning message for independent tilt terms
BLANK Enable warning message for independent tilt terms
20-21 A2 Array configuration (left justified)
NOTE: column 20 denotes the configuration of the largest
spacing in a hybrid array (ie AB, BC, CD, or AD)
Card #4 WEATHER DATA
COL FORMAT DESCRIPTION
1-5 F3.1 Temperature in degrees Celsius
7-11 F4.1 Barometric pressure in millibars
13-18 F3.1 Dew point in degrees Celsius
ARRAY card images (example)
1 2 3 4 5 6 7
123456789012345678901234567890123456789012345678901234567890123456789012345678
-0.002340 50330. 30.
-0.224 +0.360 0 0 50133.
1111112222TTTTTT BC
14.2 789.0 -0.8
SYSTEM BASELINE FILE
Baseline Card Format
COL FORMAT DESCRIPTION
1-3 A3 Absolute arm pad location (ie E1, N10) (left justified)
5-7 A3 A array pad designation
9-11 A3 B array pad designation
13-15 A3 C array pad designation
17-19 A3 D array pad designation
25-35 F15.0 Baseline parameter Bx in nanoseconds
40-50 F15.0 Baseline parameter By in nanoseconds
55-65 F15.0 Baseline parameter Bz in nanoseconds
71-76 F15.0 Total Delay Constant in nanoseconds
BASELINE card images (example only)
1 2 3 4 5 6 7
123456789012345678901234567890123456789012345678901234567890123456789012345678
E1 DE1 151.3698 23.2936 -218.3455 87.00
E72 AE9 16204.3768 63678.2782 -24269.7564 -50.00
N4 BN1 CN2 DN4 -249.4355 -39.2227 372.3495 9.00
W8 AW1 BW2 CW4 DW8 509.6011 -1338.5122 -745.1326 20.00
Comments Option Card
COL FORMAT DESCRIPTION
1-3 //* Identifies card as an optional comments card.
5-80 A76 Observer comments.
Comments will be printed on the printer when the computer encounters the comments
card in the source list. Nothing else will be affected.
Data Select Option Card
COL FORMAT DESCRIPTION
1-4 //DS Identifies card as a data select card.
6-8 A3 Observing mode selection:
Blank Continuum
1A Single IF spectral processing on IF A
1B Single IF spectral processing on IF B
1C Single IF spectral processing on IF C
1D Single IF spectral processing on IF D
2AB Dual IF processing giving correlation AA, BB
2AC Dual IF processing giving correlation AA, CC
2AD Dual IF processing giving correlation AA, DD
2BC Dual IF processing giving correlation BB, CC
2BD Dual IF processing giving correlation BB, DD
4 Four IF processing giving correlation AA, BB, CC, DD
PA Polarization Mode AC IFs
PB Polarization Mode BD IFs.
6-7 A2 DC Allows for single dish Continuum observation simultaneous
with Spectral Line observing in other subarray(s)
(applied to DS card in the SUBARRAY n file)
10-12 A3 Array processor options. Can be up to three of the following:
B band pass normalization
H Hanning smoothing
S produce digital summing of all baselines
L generate lag spectrum (turn off FFT)
14 A1 S Solar short integration time
16-18 12 On-line integration time in seconds (right justified)
0,9,10 10 seconds
1 1 2/3 seconds
2,3 3 1/3 seconds
4,5 5 seconds
6 6 2/3 seconds
7, 8 8 1/3 seconds
BLANK Default integration time
21-30 IF A channels code
cc 21-22 Number of channels code:
-1 none
0 all (set by mode & BW crit.)
(i.e. M=1A, BW = 1111, ch=32)
where HS must have specific number of
channels expressed as exponent of 2
(2 < n <10 = >2**n)
cc 26-28 Starting channel of selection
31-40 IF B channels code
cc 31-32 Number of channels code
cc 36-38 Starting channel of selection
41-50 IF C channels code
cc 41-42 Number of channels code
cc 46-48 Starting channel of selection
51-60 IF D channels code
cc 51-52 Number of channels code
cc 56-58 Starting channel of selection
61-70 Spare IF (reserved)
Fine Tuning Option Card
COL FORMAT DESCRIPTION
1-4 //FI Identifies card as fine tuning card.
5 A1 Synthesizer setting code:
R (rail) A, B, C & D frequencies are set to 100, 200, -250 & -150.
C (center) A, B, C & D frequencies are set to (Rail+25 - 1/2BW)
S (set) set to frequencies given hereafter
N (no) do not change Flukes from current settings
BLANK same as R
Unless S is specified, all subsequent parameters are ignored.
6 A1 Frequency / velocity switch, telling how the Fluke frequencies
are calculated for IFs AC:
O Defining a rest frequency and frequency offset in MHz
V Defining a rest frequency and velocity in Km/s;
velocity to be added using the "radio" convention
Z Defining a rest frequency and velocity in Km/s;
velocity to be added using the "optical" convention
(If cc 16 is BLANK this applies to all 4 IFs, otherwise only to
IFs AC)
7 A1 Frequency reference:
T Center
BLANK Edge
8 A1 Rest frequency for velocity:
T Restframe is topocentric
G Restframe is geocentric
B Restframe is barycentric
L Restframe is LSR
BLANK Same as T
10 I1 Fluke set select, 1 or 2
BLANK As specified in SUBn or Local Default Block
16 A1 Frequency / velocity switch, telling how the Fluke frequencies
are calculated for IFs BD:
O Defining a rest frequency and frequency offset in MHz
V Defining a rest frequency and velocity in Km/s;
velocity to be added using the "radio" convention
Z Defining a rest frequency and velocity in Km/s;
velocity to be added using the "optical" convention
BLANK applies to all 4 IFs, otherwise only to IFs BD
17-30 F14.7 Fluke A frequency / velocity (MHz or Km/s)
37-50 F14.7 Fluke B frequency / velocity (MHz or Km/s)
51-65 F14.7 Fluke A line rest frequency (MHz) (if transition code is blank)
66-80 F14.7 Fluke B line rest frequency (MHz) (if transition code is blank)
SYSTEM I.F. (GAIN CALIBRATION PARAMETERS) FILE
I.F. Card Format
COL FORMAT DESCRIPTION
1-4 I2 Antenna identifier (right justified)
5 A1 I.F. identifier (A, B, C, or D)
6-15 F10.4 Peculiar Delay in nanoseconds
16-20 F5.1 I.F. Peculair Phase in degrees (positive decreases phase)
21-25 F5.4 E0 TERM (Zenith Efficiency)
26-30 F5.4 E1 TERM (Surface Deterioration w/ Elevation)
31-35 F5.4 E2 TERM (Surface Deterioration w/ Elevation)
36-40 F5.4 E3 TERM (Atmospheric Absorbtion)
Formula for net efficiency is: E=E0 + (SIN H-1)E1 + COS(H)E2 - (CSC H-1)E3
41-45 F5.3 Noise Tube Temperature in Kelvins
46-50 F5.3 Peculiar Gain (numerical adjustment to get correct Flux)
51-55 F5.0 Solar Noise Tube Temperature in Kelvins
BLANK no Solar Noise Tube present
56-60 F5.0 Solar Peculiar Gain
BLANK 1.0
61 A1 T This I.F. will be flagged BAD
I.F. card images (example only)
1 2 3 4 5 6 7
123456789012345678901234567890123456789012345678901234567890123456789012345678
1A+ 4.3 83.0.65 4.86 1.102140.
1B- 2.5 -47.0.65 4.86 1.032140.
1C-12.5 -132.0.65 3.58 0.992140.
1D+07.0 145.0.65 4.86 1.602360.
Local Oscillator Option Card
COL FORMAT DESCRIPTION
1-4 //LO Identifies card as a synthesizer set card.
5-6 I2 200 MHz phase switching, non-zero number to activate IF pair
(cc 5 = AC, cc 6 = BD)
7-13 F7.1 "1AB" Front End L.O. frequency (GHz). (F3 or F12 module)
14-20 F7.1 "1CD" Front End L.O. frequency (GHz). (F3 or F12 module)
26-30 I5 "SYA" 2-4 GHz synthesizer frequency (MHz) (right justified).
(L6 module) SEE NOTES #1, #2
36-40 I5 "SYB" 2-4 GHz synthesizer frequency (MHz) (right justified).
(L6 module) SEE NOTES #1, #2
46-54 F9.1 PT f_1 frequency
Used to calculate L6 settings at PT
55-58 I4 Front-end filters for IFs A to D:
0 50 MHz centered at 1025 MHz.
1 25 MHz centered at 1027 MHz.
2 12.5 MHz centered at 1027 MHz.
3 Co-axial connection.
4 Open Circuit.
61-70 A8 Left-adjusted name of the file containing gain calibration
parameters (IF file)
71-80 A8 Left-adjusted name of the file containing front end and
subreflector parameters (ROT file)
NOTE 1: Synthesizer frequency formula: 2400 + n * 50 +/- 10.1
where n = integer so that synthesizer frequency lies within 1990 - 4060 MHz
range.
NOTE 2: There is a bandpass filter in the F4 front end module which @ L-band & higher
frequencies precludes the use of synthesizer values outside the range of
3410 to 4060 MHz.
Local Default Block
COL FORMAT DESCRIPTION
1-4 /DEF Defines the start of this Local Default Block
Modifying cards. One or more of the following:
//AN (Antenna Wrap) Option Card
//DS (Data Select) Option Card
//FI (Fine Tuning) Option Card
//LO (Local Oscillator) Option Card
//PM (Planetary Motion) Option Card
Alias, Comment card(s).
1-5 /EDEF Defines the end of this Local Default Block
This block of local defaults will override those in the Subarray file(s) for all
source cards following the block until the next local default option block or the
end of the file (a // card following a source card will override the similar card
in the local default option block for that source only).
1 /.AH145 29
2 3C84 03 00 00 03 16 29.569 +41 19 51.940 CC 0000
3 /DEF
4 CCLO 3890 3890 SYSCIF SYSCROT
5 ZZLO 3560 3510 SYSZIF SYSZROT
6 ZZFIS 1328.000 1328.000
7 ZZDS 20
8 ZZALLL
9 /EDEF
10 3C84 03 20 00 03 16 29.569 +41 19 51.940 CC 0000
11 3C84 03 40 00 03 16 29.569 +41 19 51.940 ZZ 0000
12 3C84 04 00 00 03 16 29.569 +41 19 51.940 CC 0000
13 //LO 3810 3810 SYSCIF SYSCROT
14 3C84 04 20 00 03 16 29.569 +41 19 51.940 CC 0000
15 /DEF
16 /EDEF
17 3C84 04 20 00 03 16 29.569 +41 19 51.940 CC 0000
Cards 3-9 Constitute local default block:
Card 3 Start of local default block
Card 4 Redefines the L6 frequencies for CC band observation
Card 5 Redefines the L6 frequencies for ZZ band observation
(NOTE: SYSXIF and SYSZROT must exist!)
Card 6 Redefines the FLUKE A and FLUKE B frequencies
Card 7 Redefines the default integration time -- sets it to 20
seconds
Card 8 Alias Card:
ZZ = alias band identifier
AL = alias identifier
LL = observing bands
Card 9 End of local default block
Cards 15-16 Constitute local default block:
As this is a blank block, all defaults are returned to the
Subarray file(s)
Result of the Local Default Block(s):
Observe source #1 (card 2): at standard CC band
Observe source #2 (card 10): at CC band with the L6s set to 3890 as defined in
the local option block card 4
Observe source #3 (card 11): at ZZ band as defined in the local option block
cards 5 - 8
Observe source #4 (card 12): at CC band with the L6s set to 3810 as defined
by the follow on //LO source option card
Observe source #5 (card 14): at CC band with the L6s set to 3890 as defined in
the local option block card 4
Observe source #6 (card 17): at standard CC band
Offset Option Card -- "Raster Mode"
COL FORMAT DESCRIPTION
1-4 //OF Identifies the card as an Offset Raster Mode card
6 A1 The signed sum of the LOs to calculate the beam size
8-10 A3 The functional form of the path to be traced:
SUR Survey
NOD "Fast Switching"
ONE Used for TIPPER scan (descending pass)
TWO Used for TIPPER scan (descending / ascending pass)
12-14 A3 The type of Raster. This is used for future use for azimuth and
elevation or RA and DEC co-ordernates. Valid options are:
ANT (AZ / EL Raster)
SKY (RA / DEC Raster)
TIP (TIPPING scan -- 55 degrees to 23 degrees)
BLANK (same as ANT -- default)
16-20 F5.0 Azimuth offset in units of points per beam, to the beginning
of theline to be traced. Ignored if Raster type is not ANT.
21-25 F5.0 Elevation offset in units of points per beam, to the beginning
of the line to be traced. Ignored if Raster type is not ANT.
26-30 F5.0 Position angle in degrees of the line to be traced.
31-35: F5.0 Desired spacing between sample points specified as the number
of samples per beam.
36-40 F5.0 Desired integration time in seconds per sample.
41-45 I5 Desired number of samples along this line.
If cc 12-14 contains SUR then this scan will be part of the L band all sky
survey and only cc 8-10, 26-30, and 36-45 will be interpreted. All these
fields will have the same meaning as given above. In this case, the successive
positions to be observed will come from a table built into the system.
24-36 A6F7.4 Alternate RA as hh mm ss.ssss
38-50 A7F6.3 Alternate DEC as +/- dd mm ss.sss
61 A1 Alternate calibrator code
63-66 I4 Seconds of duration at primary position
67-70 I4 Seconds of duration at alternate position
If cc 12-14 contains TIP then the following are assigned:
8-10 A3 Number of TIPPER passes:
ONE Descending pass only (55 degrees to 23 degrees)
TWO Descending and ascending passes
(55 degrees - 23 degrees - 55 degrees)
41-45 I2 Total number of samples desired (not less than 4, not greater
than 19)
Planetary Motion Option Card - Source Daily Motion
COL FORMAT DESCRIPTION
1-4 //PM Identifies card as planetary motion card.
11-20 F10.0 dRA/dT, in seconds of time per day.
21-30 F10.0 dDEC/dT, in seconds of arc per day.
32-33 I2 hours of IAT time.
35-36 I2 minutes of IAT time.
38-39 I2 seconds of IAT time.
41-50 F10.0 Equatorial Horizontal Parallax in seconds of arc.
IAT time in cols 31-39 is the epoch for the position (on the source request
card) and rates. The date is assumed to be the date at the beginning of the
scan.
SYSTEM POINTING FILE
Pointing Card Format
COL FORMAT DESCRIPTION
1-2 I2 Antenna ID ending in col. 2
6-80 Seven terms describing AZIMUTH constants in arc-minutes;
Five terms describing ELEVATION constans in arc-minutes
The below is a "suggestion" of which columns to put which terms. Again,
terms must be entered in order (ie terms A1 through A7, then E1 through E5).
Terms A1 through A6 are all multiplied by 1/cos(EL).
6-9 A1 (TILT E-W component [normally -E1 term])
11-15 A2 (TILT N-S component [normally E2 term])
17-21 A3 (cos(AZ) term)
23-27 A4 (sin(AZ) term)
29-33 A5 (AXIS PERPENDICULARITY ERROR)
35-39 A6 (COLLIMATION ERROR)
41-46 A7 (AZIMUTH ENCODER OFFSET)
49-53 E1 (TILT E-W component [E tilt low = +])
55-59 E2 (TILE N-S component [N tilt low = +])
61-65 E3 (cos(EL) term [sag])
67-71 E4 (sin(EL) term)
73-80 E5 (ELEVATION ENCODER OFFSET)
POINTING card images (example only)
1 2 3 4 5 6 7
123456789012345678901234567890123456789012345678901234567890123456789012345678
1 -1.60,-0.41,-0.18,+0.01,+0.10,-2.36,+33.88, +1.60,-0.41,+0.66,+1.21,+0.26,
2 +0.22,+1.02,-0.22,-0.09,+0.15,+0.19,-0.77, -0.22,+1.02,+0.47,+0.39,-7.52,
Repeat Source List Option Card
COL FORMAT DESCRIPTION
1-4 /REW Identifies card as repeat source list card.
There are two ways of using this card:
1) It can be added at the end of a source list in which all sources are
listed as durations ($ in col 14). This instructs the computer to repeat
observations, using only this source list until further notice.
2) It can also be used in the same manner at the end of a source list in
which all sources have a stop time (col 14 blank), but only if the list
is for a 24-hour period.
WARNING: If the source list with stop times is other than 24 hours in length,
the use of this /REW card may result in the computer doing something other
than what you intended.
Repeat Sources Option Card
COL FORMAT DESCRIPTION
1-4 /BAC Identifies card as a backup card.
9-13 I5 An integer N (right justified) specifying number of source cards
to back up. If N<0 will skip forward -N cards.
Default value = 1 if blank or 0.
Note warning above under /REW card
| Frequency in MHz | I.F. Filter Hex Readout | |||
|---|---|---|---|---|
| Continuum | Spectral Line | Continuum | Spectral Line |
| 0 = 50.00 | 0 = 50 | 0 | 0 |
| 1 = 25.00 | 1 = 25 | 1 | 1 |
| 2 = 12.50 | 2 = 12.5 | 2 | 2 |
| 3 = 6.25 | 3 = 6.25 | 3 | 3 |
| 4 = 3.125 | 4 = 3.125 | 4 | 4 |
| 5 = 1.5625 | 5 = 1.5625 | 5 | 5 |
| 6 = 0.78125 | 6 = 0.78125 | 6 | 6 |
| 7 = 0.1953125 | 7 = 0.78125 | 7 | 6 |
| 8 = 18.75/8 (JPL) | 8 = 0.390625 | 8 | 7 |
| 9 = OPEN | 9 = 0.1953125 | 9 | 7 |
69 Apply previously determined offsets. BLANK no correction T apply pointing correction S do secondary reference pointing scan R refresh pointing scan 70 A1 TSYS application: BLANK As specified in the Rot & IF files. T Turn off for this source, and replaces the correction factor with unity 71 Reference pointing flag 72-80 The FLUX for this calibrator See Note 3
NOTE #1: Although the standard notation for setting bands on this card
is to use 4, P, L, C, X, U, K, or Q bands there is another option
available. You can rename the bands any way you like, as long as you
insert an "ALIAS CARD" in the local defaults option block. When the
computer encounters a source card with a non-standard band set notation,
it is replaced by a band specified by an "Alias Card" in the subarray
file. If this "ALIAS CARD" follows the "LO card", the "LO card" with
the non-standard band notation will be used. This allows the
specification of different frequencies within the same band.
NOTE #2: Filters 0-6 are low pass, 7 is a band pass, 8 is brought out to
the D-racks for non-standard filters, 9 is open.
NOTE #3: To deduce source flux from the correlator output displays (D10
& F - fringe power portion) for Continuum mode, use the following
relationships:
P74 (400 cm) and P (90 cm) band FLUX:
100 * D10 or F (fringe powers) output.
L (20 cm), C (6 cm), U (2 cm), X (3.5 cm), K (1.3cm), Q (0.7cm) band FLUX:
10 * D10 or F (fringe powers) output
(In spectral line multiply these results by 2.0)