TEXIO FGX-2220, Instruction Manual

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8-7-3. SOURce[1|2]:AMPlitude
Set
Query
Description The SOURce[1|2]:AMPLitude command sets the output
amplitude for the selected channel. The query command
returns the current amplitude settings.
Note The maximum and minimum amplitude depends on the output
termination. The default amplitude for all functions is 100
mVpp (50Ω). If the amplitude has been set and the output
termination is changed from 50Ω to high impedance, the
amplitude will double. Changing the output termination from
high impedance to 50Ω will half the amplitude.
The offset and amplitude are related by the following
equation.
|V
offset | < V max
– Vpp/2
If the output termination is set to high impedance, dBm units
cannot be used. The units will default to Vpp.
The output amplitude can be affected by the function and unit
chosen. Vpp and Vrms or dBm values may have different
maximum values due to differences such as crest factor. For
example, a 5Vrms square wave must be adjusted to 3.536
Vrms for a sine wave.
The amplitude units can be explicitly used each time the
SOURce[1|2]:AMPlitude command is used. Alternatively, the
VOLT:UNIT command can be used to set the amplitude units
for all commands.
Syntax SOURce[1|2]:AMPlitude {< amplitude>
|MINimum|MAXimum}
Example SOUR1:AMP MAX
Sets the amplitude to the maximum for the current mode.
Query Syntax SOURce[1|2]:AMPlitude? {MINimum|MAXimum}
Return
Parameter <NR3> Returns the amplitude for the current mode.
Example SOUR1:AMP? MAX
+5.0000E+00
The maximum amplitude that can be set for the current
function is 5 volts.