Agilent Technologies E1441A user service VOLTage:OFFSet?, VOLTage:UNIT?

selected output termination; Vpp is the output amplitude in volts peak-to-peak.) A -221, “Settings conflict” error is generated and the offset is adjusted.

Voffset

Vpp	≤ Vmax	and
+ -------
2

Voffset

≤2Vpp

•DC Offset and Output Termination: The offset voltage is automatically adjusted (and no error is generated) if you change the output termination. For example, if you set the offset to 100 mVdc and then change the termination from 50 ohms to “high impedance”, the offset will double to 200 mVdc. If you change from “high impedance” to 50 ohms, the offset will drop in half. See the OUTP:LOAD command for more information.

•For dc volts, the output level is actually controlled by setting the offset voltage. You can set the dc voltage to any value between ±5 Vdc into 50 ohms or

±10 Vdc into an open circuit.

VOLTage:OFFSet?

[SOURce:]VOLTage:OFFSet? [MINMAX] queries the dc offset voltage for the currently selected function. Returns a value in dc volts.

VOLTage:UNIT

[SOURce:]VOLTage:UNIT VPPVRMSDBMDEF selects the output units for amplitude only (does not affect offset). The default is VPP. [ Stored in volatile memory ]

VOLTage:UNIT?

[SOURce:]VOLTage:UNIT? queries the units selected. Returns “VPP”, “VRMS”, or “DBM”.

116 Agilent E1441A SCPI Command Reference Chapter 3