HP 81101A Reference Manual page 48

Programming Reference
SCPI Instrument Command List
0.1 Ω to 1 MΩ
Specified Limits
Description Use this command to set the expected load impedance of the device
under test at the OUTPUT connectors. If you have a non-50 Ω load, the
output levels at the device under test will not be the levels you program
or set via the front panel unless you set the expected load using this
command.
Example
To set the expected load impedance:
:OUTP:IMP:EXT 47.6OHM
Command
:OUTP[1]:POL
Long
:OUTPut[1]:POLarity
Form
Set & Query
Parameter
NORMal | INVerted
*RST value
NORM
Description
Use this command to invert the signal at the OUTPUT.
Example To invert and re-invert the signal:
:OUTP:POL INV
:OUTP:POL NORM
Command
:CURR[1]
Long
[:SOURce]:CURRent[1][:LEVel][:IMMediate][:AMPLitude]
Form
Set & Query
Parameter Numeric
Parameter suffix
A with engineering prefixes.
20 mA (50 Ω into 50 Ω)
*RST value
Specified Limits
10 V Outputs (from high Z into short): max. 400 mA typical
3.8V Outputs (50 Ω into short): max. 152 mA typical
48
Set load impedance at OUTPUT to 47.6 Ω
Inverted signal at OUTPUT
Normal signal at OUTPUT