BASEBANDS

##
BASEBANDS

            [PICO\]BASEBANDS [Code1 Code2 Code3 Code4] [/SINGLEPOLAR]

        After  a  EMIR tuning (one or more bands), defines what are the spectral
        ranges that are sent to the Backends through the 8 available IF cables.

        On the plot, the selected basebands are identified with their name  (see
        below).   Baseband  which  will  not be brought towards the backends are
        filled in light grey. If the current plot corresponds to the result of a
        tuning, the plot is not redrawn.  Otherwise the current plot is redrawn.

        Without  arguments, an automatic selection is performed.  When more than
        one receiver band are tuned, the default maximises the coverage  of  the
        FTS units and selects dual polarization when possible (losing a sideband
        in each receiver band).

        With the option /SINGLEPOLAR, the coverage of the FTS is still  maximum,
        but  only one polarization is selected in order to process the two side-
        bands in both receiver bands.

        When codes are given, then the selection is up to the user.  This  might
        be  needed  to send OUTER basebands towards WILMA and VESPA backends.  4
        codes as inputs are required to set the content of the IF cables 1 to 4.
        The  content  of IF cables 5 to 8 is not flexible and is the outer base-
        band of the Receiver/Sideband/Polarization combination chosen for cables
        1 to 4).

        The format of the Code is: BBPSB
        BandName (2 characters) : BB = E0, E1, E2 or E3 for EMIR
                                  bands E090, E150, E230 or E350
        Polar    (1 character)  : P = H or V
        Sideband (1 character)  : S = U or L
        Baseband (1 character)  : B = I or O

Subsections

- BASEBANDS /SINGLEPOLAR