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RECEIVER
RECEIVER receiverBand lineName [frequency SB]
RECEIVER BOLOMETER bolometerName [pixel]
Specify selection and setup for receivers.
The first form is for heterodyne receivers,
the second form for bolometers.
Heterodyne:
===========
Character :: receiverBand ! name of receiver band to connect
Character*12 :: lineName ! name of line. don't use @ < >
Real :: frequency ! [GHz]
Character :: SB ! sideband or subband
! choices for HERA: LSB USB
! choices for EMIR: LO LI UI UO
Choices for receiverBand are:
E090 E150 E230 E330 HERA1 HERA2
lineName is limited to 12 characters.
NB: Don't use / & < > in names of sources, lines, projects,
PI, observer, operator, etc. Don't use ()/ in source names.
E090 E150 E230 E330 are the 4 EMIR (Eight MIxer Receiver) bands,
HERA1 and HERA2 are the 2 parts of HERA (HEterodyne Receiver Array).
If only receiverBand and lineName are specified, we try to read the
frequency and sideband/subband from the line catalog specified with:
CATALOG LINE fileName.
The local oscillator for the receiverBand will be set so that the
frequency (corrected for the Doppler shift) will be in the requested
sideband/subband SB. See receiver documentation for the exact values
of the IF.
NOTE: EMIR subbands, IF cables, and Backends
The output signals from EMIR are transmitted to the spectrometers and
NBC through 8 IF cables. Each IF cable carries one subband of bandwidth
4 GHz. This subbands are LO, LI, UI, or UO.
NBC, 4MHz, WILMA, and VESPA can only(!) be connected to IF cables 1 to 4.
FTS parts 1 to 4 can also be connected to IF cables 1 to 4.
The command options RECEIVER /HORIZONTAL and RECEIVER /VERTICAL allow
to select up to 4 EMIR subbands that will be transmitted through IF
cables 1 to 4 (compare HELP RECEIVER /HORIZONTAL and the EMIR user
documentation). This selection can include Outer subbands.
In addition, the IF cables 5 to 8 carry the 4 Outer subbands
corresponding to the subbands selected for IF cables 1 to 4. E.g., if
we select for IF 1 to 4:
E230 ver UO E090 ver UI E230 hor UI E090 hor UI
then the IF cables 5 to 8 will transmit:
E230 ver UO E090 ver UO E230 hor UO E090 hor UO.
Only FTS parts 5 to 8 can be connected to IF cables 5 to 8.
BACKEND NBC|WILMA|FTS /DEFAULT will automatically set the maximum
number of backend parts for all available subbands.
BACKEND BBC is completely independant of the sub band selections for
the IF cables.
Bolometer:
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RECEIVER BOLOMETER bolometerName [pixel]
RECEIVER BOLOMETER GISMO
RECEIVER BOLOMETER NIKA [pixel]
Character :: bolometerName ! name of bolometer
Integer :: pixel ! number of NIKA pixel
Choices for bolometerName are:
GISMO NIKA
If the pixel number is specified with RECEIVER BOLOMETER NIKA, pako
will try to find and use the Nasmyth offsets for this pixel in a
coresponding configuration file.
However, if Nasmyth offsets are explicitly specified with
OFFSETS /SYSTEM Nasmyth, the values from OFFSETS take precedence over
any values found for a NIKA pixel.
Subsections
Gildas manager
2023-06-01