GPIB OPERATION

HP 438A EMULATION COMMANDS

LN

Set linear units

Syntax: LN

Remarks: Changes the display to linear units (Watts).

OC

Set calibrator state

Syntax: OC<state>

state: 0 (OFF) 1 (ON)

Remarks: For example: OC0 (reference calibrator state set to OFF).

OI

HP Identity request

Syntax: OI

Remarks: The format of the returned string is:

<Company name>,<model>,<serial>,<firmware version>

OS

Set offset value

Syntax: OS<val>EN

val: –99.99 to +99.99 dB

Remarks: Specifies the offset applied to the displayed value. Values can be entered in 0.01 dB increments.

Example: To set an offset of 10.13 to the displayed value:

OS10.13EN

PR

Preset the unit

Syntax: PR

Remarks: Presets the unit to the HP factory defaults. This command does not effect the calibration factors stored in the sensor data tables. The defaults for the HP 438A are:

Measurement mode = Sensor A

ML2430A OM

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Anritsu ML2430A operation manual Syntax OI, Syntax PR