Agilent Technologies E1441A user service OUTPut, Load?, Parameters, Subsystem Syntax

OUTPut

Subsystem Syntax

OUTPut

:LOAD 50 INFinity MINimum MAXimum :LOAD? MINimum MAXimum

:SYNC OFF ON :SYNC?

:TRIGger:IMMediate :TRIGger:STATe OFF ON :TRIGger:STATe? :TTLTrg<n>[:STATe] <mode> :TTLTrg<n>[:STATe]?

:LOAD

OUTPut:LOAD 50INFinityMINMAX selects the output termination for output amplitude and offset voltage. The function generator has a fixed output impedance of 50 ohms on the "Output" terminal. You can specify whether you are terminating the output into a 50 ohm load or an open circuit. Incorrect impedance matching between the function generator and your load will result in an amplitude or offset which does not match the specified signal level. The output load setting is stored in volatile memory.

Parameters

Parameter Name	Sets output termination to:
50 (default)	50Ω
INFinity	"high impedance"
MIN	50Ω
MAX	"high impedance"

Comments • The amplitude (or dc offset) is automatically adjusted if you change the output termination (and no error is generated). For example, if you set the amplitude to 10 Vpp and then change the termination from 50 ohms to “high impedance”, the amplitude will double to 20 Vpp. If you change from “high impedance” to 50 ohms, the amplitude will drop in half.

•If you specify a 50 ohm termination but are actually terminating into an open circuit, the output will be twice the value specified. For example, if you set the offset to 100 mVdc (and specify a 50 ohm termination) but are actually terminating the output into an open circuit, the actual offset will be 200 mVdc.

•*RST Condition: OUTPut:LOAD 50

:LOAD?

OUTPut:LOAD? [MINMAX] queries the output impedance. Returns “50” or “9.9E+37”.

Chapter 3 Agilent E1441A SCPI Command Reference 87