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    :INPut:ATTenuation:CH1

    Description

    This command gets or sets the attenuation of channel 1.

    • Command
    Syntax Parameter
    :INPut<ch>:ATTenuation<tr>:CH1 <numeric>
    Parameters accepted format allowed suffixes possible Errors description
    <ch> { 1 | empty } none Invalid channel index Currently only one channel is supported. Empty means 1 is used as default.
    <tr> { 1 | empty } none Invalid trace index Currently only one trace is supported. Empty means 1 is used as default.
    <numeric> numeric value none none The attenuation in dB.
    • Query
    Syntax Response
    :INPut<ch>:ATTenuation<tr>:CH1? <numeric>
    Parameters accepted format description
    <ch> { 1 | empty } Currently only one channel is supported. Empty means 1 is used as default.
    <tr> { 1 | empty } Currently only one trace is supported. Empty means 1 is used as default.
    Response value description
    <numeric> the attenuation value in dB

    Accepted values

    Warning

    Not all attenuation values are valid. For a list of possible values please refer to Measurement Modes and Default Settings.

    Presets

    For presets please refer to Measurement Modes and Default Settings.

    Sample usage

    Set the attenuation of channel 1 to 10dB.

    • C#
    var visaSession = new TcpipSocket(VISA_RESOURCENAME);
    visaSession.RawIO.Write(":CALC:PAR:DEF S21\n");
    visaSession.RawIO.Write(":INP:ATT:CH1 10\n");
    
    • Python
    visaSession.write(':CALC:PAR:DEF S21\n')
    visaSession.write(':INP:ATT:CH1 10\n')
    

    Related commands

    :INPut:ATTenuation:CH2

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