RECEIVER
Keywords: pako

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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:
        ==========

        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

- RECEIVER /DEFAULTS
- RECEIVER /CLEAR
- RECEIVER /CONNECT
- RECEIVER /DEROTATOR
- RECEIVER /DISCONNECT
- RECEIVER /DOPPLER
- RECEIVER /EFFICIENCY
- RECEIVER /GAINIMAGE
- RECEIVER /HORIZONTAL
- RECEIVER /SCALE
- RECEIVER /TEMPLOAD
- RECEIVER /VERTICAL
- RECEIVER /WIDTH
- RECEIVER BOLOMETER
- RECEIVER EXAMPLES