Chapter 2 181
One-Button Measurement Functions
Meas Setup (Occupied Bandwidth—OBW)
One-Button Measurement Functions
TIP ESA Only: This function looks similar to the N dB Points function found
under the Peak Search front-panel key. However, the N dB Points arrows are
referenced to the active marker, usually placed on a signal peak, and the
frequency difference between the two arrows will be displayed in the upper right-hand
corner of the display. On the other hand, the EBW indicated by the arrows x dB
are referenced to the OBW power calculation integration of the power in the
displayed spectrum.
Key Path: Meas Setup
State Saved: Saved in instrument state.
Factory Preset: –26 dB
Default Terminator: dB
Range: –100.0 dB through –0.1 dB
Remote Command:
[:SENSe]:OBW:XDB <dB value>
[:SENSe]:OBW:XDB?
Example: OBW:XDB —50 dB
OBW:XDB?
2.18.7 Optimize Ref Level PSA Only: Sets the input attenuator to optimize the robustness of the measurement,
which is its freedom from errors due to input compression.
ESA Only: Sets the input attenuator and reference level to optimize the robustness of the
measurement, which is its freedom from errors due to input compression and log amp
range limitations.
NOTE There will always be a minimum of 2 dB for PSA or 5 dB for ESA of
attenuation set to protect the analyzer input.
Key Path: Meas Setup
State Saved: Saved in instrument state.
Factory Preset: n/a
Remote Command:
[:SENSe]:POWer[:RF]:RANGe:AUTO ONCE
Example: POW:RANG:AUTO ONCE