HP438A Emulation Commands GPIB Operation
8-128 PN: 10585-00001 Rev. P ML2437A/38A OM/PM
PR (Preset the unit)
RA (Auto Range)
RC (Recall setup)
RH (Range hold)
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 HP438A are:
Measurement mode = Sensor A
Reference Oscillator = Off
Active entry channel = A
Measurement units = Watts
REL mode = off
Measurement parameters (set for Sensor A and Sensor B):
Cal Factor = 100.0%
Cal Adj = 100.0%
Offset = 0.00 dB
Syntax: RA
Remarks: Sets the ML243xA to automatically select the correct range for the
measurement.
Syntax: RC<val>EN
val: 1 to 10
Remarks: The ML243xA can store up to 10 instrument configurations for
convenient recall. The configuration parameters stored are the same
parameters the ML243xA stores in its own *SAV and *RCL commands.
Therefore, RC is equivalent to *RCL, and ST is equivalent to *SAV.
Selecting Register 0 always restores the previous power meter
configuration, providing an expedient way to recover from an entry
error.
Syntax: RH
Remarks: Hold the power meter in the current range. The differences in sensor
ranges must be taken into account when the ML2430 is being used to
emulate the HP438.
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