Agilent Technologies Agilent 33500 Series Operating And Service Manual page 261

OUTPut Subsystem
Parameter
1 Ω to 10 kΩ, default 50 Ω
Set output impedance to 300 Ω:
OUTP:LOAD 300
Set output impedance to "high impedance":
OUTP:LOAD INF
The specified value is used for amplitude, offset, and high/low level settings.
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The instrument has a fixed series output impedance of 50 Ω to the front-panel channel connectors. If the actual
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load impedance differs from the value specified, the displayed amplitude and offset levels will be incorrect. The load
impedance setting is simply a convenience to ensure that the displayed voltage matches the expected load.
If you change the output termination setting, the displayed output amplitude, offset, and high/low levels are
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adjusted (with no error generated). If the amplitude is 10 Vpp and you change the output termination setting
from 50 Ω to "high impedance"
from "high impedance" to 50 Ω halves the displayed amplitude. The output termination setting does not affect the
actual output voltage; it only changes the values displayed and queried from the remote interface. Actual output
voltage depends on the connected load.
You cannot specify output amplitude in dBm if output termination is set to high impedance.The units are auto-
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matically converted to Vpp. See
You cannot change the output termination setting with voltage limits enabled; the instrument cannot know which
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output termination settings the voltage limits apply to. To change the output termination setting, disable voltage
limits, set the new termination value, adjust voltage limits, and re-enable voltage limits.
If INF (high impedance) is selected, the query returns 9.9E+37.
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OUTPut[1|2]:MODE {NORMal|GATed}
OUTPut[1|2]:MODE?
Enables (GATed) or disables (NORMal) gating of the output waveform signal on and off using the trigger input.
Parameter
{NORMal|GATed}, default NORMal
Enable gated output:
OUTP:MODE GAT
The effect of gating is independent of waveform phase or timing of any sort. When trigger input is asserted, the out-
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put signal is generated. When trigger is not asserted, the waveform continues to be generated internally, but it is
not routed to channel output connector.
Gating does not change channel output termination (does not operate output on/off relay).
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OUTPut[1|2]:POLarity {NORMal|INVerted}
OUTPut[1|2]:POLarity?
Inverts waveform relative to the offset voltage.
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Typical Return
+5.000000000000000E+02
(OUTPut[1|2]:LOAD
VOLT:UNIT for details.
Typical Return
GAT or NORM
INF), the displayed amplitude doubles to 20 Vpp. Changing
Agilent 33500 Series Operating and Service Guide