3 VMA Mode
3.8 ACP Measurement
–
See "Dual-Attenuator Configurations" on page 1175
–
See "Single-Attenuator Configuration" on page 1176
Most attenuation settings are the same for all measurements – they do not change
as you change measurements. Settings like these are called “Meas Global” and are
unaffected by Meas Preset.
Only available when the hardware set includes an input attenuator, which is typically
only the case for Keysight’s benchtop instruments. For example, this tab does not
appear in VXT models M9420A/10A/11A/15A/16A, M9410E/11E/15E/16E, nor in
UXM. In UXM, all Attenuation and Range settings are disabled, as the expected
input power level is handled by the Call Processing App that drives the DUT power
control.
Dependencies In measurements that support the I/Q inputs, unavailable when I/Q is the selected input. Replaced by
the Range tab in that case
Dual-Attenuator Configurations
Configuration 1: Mechanical attenuator + optional electronic attenuator
Configuration 2: Mechanical attenuator, no optional electronic attenuator
Note that Configuration2 is not strictly speaking a dual-section attenuator, since
there is no electronic section available. However, it behaves exactly like
Configuration 1 without the Electronic Attenuator Option EA3, therefore for the sake
of this document it is grouped into the “Dual-Attenuator” configuration.
1175 Vector Modulation Analyzer Mode User's &Programmer's Reference
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