Appendix: Configuration of YGOR Managers

In this appendix, we describe, for each YGOR manager, the meta-parameters, or configuration keyword values that are used, and which YGOR parameters will be set.

Managers with problems

YGOR Managers that are out of service will be ignored and the configuration process will issue a warning message and go ahead and set up as many of the other managers as it can. A manager will be assumed to be out of service if its state is 'off', or if it does not respond within a few seconds. Managers whose state is 'standby' will be turned on.

Managers

return to main Configuration document.

ScanCoordinator

It is assumed that the switching tables, number_phases, and related parameters will be passed from the Scan Coordinator to all back ends.

YGOR Parameters Depends on Keyword(s)
receiver Receiver
subsystemSelect Receiver, Backend
switching_signals_master Backend
number_phases Swmode
phase_start Swmode
sig_ref_state Swmode, Backend, Vframe
cal_state Swmode
blanking Swmode, Swtype, Backend
switch_period Swper

Scan Coordinator Parameters

receiver
  • Set to keyword value for Receiver.

    subsystemSelect

    switching_signals_master
    Set this to the backend, with a few exceptions:
    Backend switching_signals_master
    DCR DCR
    SpectralProcessor SpectralProcessor
    Spectrometer Spectrometer
    BCPM DCR
    GBPP DCR
    BCPM&SP SpectralProcessor
    Radar DCR
    VLBI VLBA_DAR

    number_phases, phase_start, sig_ref_state, cal_state
    Swmode number_phases phase_start sig_ref_state cal_state
    tp (not Spectral Processor or local Vframe) 2 [0.0, 0.5] ['Sig', 'Sig'] ['NoNoise', 'Noise']
    tp (Spectral Processor and non-local Vframe) 2 [0.0, 0.5] ['Sig', 'Ref'] ['NoNoise', 'Noise']
    tp_nocal 1 [0.0] ['Sig'] ['NoNoise']
    sp 4 [0.0, 0.25, 0.5, 0.75] ['Sig', 'Sig', 'Ref', 'Ref'] ['NoNoise', 'Noise', 'NoNoise', 'Noise']
    sp_nocal 2 [0.0, 0.5] ['Sig', 'Ref'] ['NoNoise', 'NoNoise']

    blanking

    switch_period

  • Set to Swper keyword value.

    SwitchingSignalSelector

    YGOR Parameters Keyword(s)
    selSigRef Backend
    selAdvSigRef Backend
    selCal Backend
    selBlanking Backend
    disableLOBlanking Backend
    disableLocalBlanking Backend
    Always set the parameters 'selSigRef', 'selAdvSigRef', 'selCal', and 'selBlanking' to the value of the switching_signals_master as described above for the Scan Coordinator.

    disableLOBlanking

  • Enable LO Blanking (set 'disableLOBlanking' to 1) for all backends.

    disableLocalBlanking

  • Enable Local Blanking (set 'disableLocalBlanking' to 1) for all backends except VLBI.

    LO1

    YGOR Parameters Keyword(s)
    receiver Receiver
    loConfig Receiver
    restFrequency Restfreq
    switchDeltas Swfreq
    sourceVelocity Vlow, Vhigh
    restFrame Vframe
    velocityDefinition Vdef
    tolerance Backend, Restfreq, Nchannels

    IFRack

    YGOR Parameters Keyword(s)
    receiver Receiver
    analog_power_level Receiver
    filter_select Bandwidth, Nwin,
    Restfreq, Dfreq, Vlow, Vhigh, Vdef
    balance_select receiver
    laser_power receiver
    laser_auto_level_control
    noise_bandwidth
    attenuator
    S1 ... S8 Receiver, Beam
    S9 ... S12 Receiver, Beam

    ConverterRack

    YGOR Parameters Keyword(s)
    CMInput Receiver, Beam
    ABselect Receiver, Beam
    CMOutput Backend, Bandwidth
    Gfrequency Receiver, Backend, Bandwidth,
    Nwin, Restfreq, Dfreq, Vlow, Vhigh, Vdef
    Glevel

    ActiveSurface

    YGOR Parameters Keyword(s)
    ZeroPoints Receiver
    FEMModel receiver
    For receivers for frequencies 8 GHz and higher (i.e., X-band, Ku-band, K-band, Q-band, W-band), the active surface FEM model should be enabled, and the active surface manager should be in the Scan Coordinator. For lower frequency receivers (prime focus, L-, S-, and C- bands), the FEM model should be turned off and the Zero Points mode should be enabled.

    AnalogFilterRack

    YGOR Parameters Keyword(s)
    SGInput Receiver, Beam
    SGFilter Bandwidth
    CFFilter Bandwidth
    subsystemSelect

    DCR

    YGOR Parameters Keyword(s)
    Bank Receiver, Beam
    Channel Receiver, Beam
    CyclesPerIntegration Backend

    Spectrometer

    YGOR Parameters Keyword(s)
    configuration Bandwidth, Nwin, Beam,
    Nchannels
    relative_bandwidth Bandwidth
    slow_samplers Nwin, Beam
    fast_samplers Nwin, Beam
    number_slow_samplers Nwin, Beam
    switching_signals_select Swtype
    slow_samplers_level Nlevels
    polarization Obstype

    SpectralProcessor

    YGOR Parameters Keyword(s)
    processorMode Obstype
    reqBandwidth Bandwidth
    reqNumChan Nchannels
    observeFreq Bandwidth, Nwin, Beam,
    Restfreq, Dfreq
    rfSideband Bandwidth, Nwin, Beam,
    Restfreq, Dfreq
    reqIF Bandwidth, Nwin, Beam,
    Restfreq, Dfreq
    sampleTime Tint
    switch_period Swper

    BCPM

    YGOR Parameters Keyword(s)
    cal_used_flag
    center_frequency
    channel_bandwidth
    operating_mode
    data_storage
    file_size
    sample_time
    sum_polarizations
    submanagers_used
    base_name
    target_name
    if_selection

    Receivers

    Prime Focus

    Rcvr1_2

    Rcvr2_3

    Rcvr4_6

    Rcvr8_10

    Rcvr12_18

    Rcvr18_26

    Rcvr40_52