HP 8753E Programming And Command Reference Manual page 125

These 4 commands set the gate shape:
These commands activate the harmonic measurement mode, Option 002.
They are all OPC-compatible:
IDN?
1-118 HP-IB Progmumi ng and Command Reference Guide
Minimum.
Wide.
Invokes a sequence as a subroutine.
Range: 1 to 6.
Turns OFF harmonic mode.
OPC-compatible.
Measures the second harmonic.
OPC-compatible.
Measures the third harmonic.
OPC-compatible.
Puts the sweep trigger into hold.
Outputs the identification string:
HEWLETT F'AC:KARD. :37t#JEy Uj X. ;::X,
where 87NNE is the model number of
the instrument and X.Xx is the firmware
revision of the instrument.