Agilent Technologies Signal Analyzer N9030a - Manual (Page 485)

5 Legacy Command Descriptions
TH (Threshold)
Format TH <real>DM|MV|UV|DB
TH UP|DN
UP or DN increments by one step size
TH ON|OFF (8560 series only)
TH OA
TH?
Query Data Type <real> in dB
SCPI Equivalent Commands :CALCulate:MARKer:PEAK:THReshold <ampl> (see "Pk Threshold " on page 902 )
Preset –130 dBm
Remote Language Compatibility Measurement Application Reference 485