Keysight Technologies 33210A User Manual page 183

– You cannot specify the output amplitude in dBm if the output termination is
– Limits Due to Units Selection: In some cases, the amplitude limits are
– Arbitrary Waveform Limitations: For arbitrary waveforms, the maximum
– While changing amplitude, you may notice a momentary disruption in the
Keysight 33210A User's Guide
currently set to "high impedance". The units are automatically converted to
Vpp. See the VOLT:UNIT command on page 201 for more information.
determined by the output units selected. This may occur when the units are
Vrms or dBm due to the differences in crest factor for the various output
functions. For example, if you output a 5 Vrms square wave (into 50 ohms) and
then change to the sine wave function, the function generator will
automatically adjust the output amplitude to 3.536 Vrms (the upper limit for
sine waves in Vrms). From the remote interface, a "Data out of range" error will
be generated and the amplitude will be adjusted as described.
amplitude will be limited if the waveform data points do not span the full range
of the output DAC (Digital- to-Analog Converter). For example, the built-in "Sinc"
waveform does not use the full range of values between ±1 and therefore its
maximum amplitude is limited to 6.087 Vpp (into 50 ohms).
output waveform at certain voltages due to switching of the output
attenuators. The amplitude is controlled, however, so the output voltage will
never exceed the current setting while switching ranges. To prevent this
disruption in the output, you can disable the voltage autoranging feature using
the VOLT:RANG:AUTO command (see page 196 for more information).
The APPLy command automatically enables autoranging.
Remote Interface Reference 4
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