Chapter 4
Front-Panel Key and SCPI Command Reference
Measurement keys
201
Front-Panel Key and SCPI Command
Reference
4.4.4.5 Meas setup
Displays the measurement setup menu for the AM Depth Measurement when the AM Depth
Measurement key
has been selected in the
Measure menu.
4.4.4.5.1 IF BW
Used to specify the IF BW, if the IF BW Type is set to Man.
4.4.4.5.2 IF BW Type
Used to adjust the IF Bandwidth that the analyzer uses while making a modulation measurement. In this
measurement, there are three BW types: Auto, Manual and Minimal. However, the parameter can be set only
when Bandwidth Type is set to Manual. In Auto and Minimal types, the system determines this parameter
automatically. Usually auto mode is sufficient for most measurement conditions, but this parameter allows
adjustment when challenging measurement conditions exist. Signals with hard to measure bandwidths, such as
low rate and high deviation FM/PM signals are an example. A value that is very close to the actual signal
bandwidth should be used in this case. (If the value is too low, an inaccurate measurement reading will result,
whereas a value too high will allow unwanted noise and increase measurement time, unnecessarily.) The type of
IF bandwidths that the PSA uses can vary from ~25 kHz to 8 MHz.
• Auto: This is the default setting. This setting causes system to perform an occupied bandwidth measurement
on the modulated signal. This measurement will occur at the start of any modulation measurement, and will
help determine the final IF bandwidth that the PSA will use in analyzing the signal. The main drawback of
Range: 1|2
Dependencies/Couplings: Changing the selected window changes the value displayed on the Window Content
softkey. The ‘green border’ round the window shows the active window.
Notes: Window selection is performed on front panel using the ‘Next Window’ key.
Example: :DISP:WIND:SEL 2
:DISP:WIND:SEL?
Mode: MRECEIVE
Key Path:
Meas Setup
Remote Command: [:SENSe]:AMDepth:BANDwidth|BWIDth <freq>
[:SENSe]:AMDepth:BANDwidth|BWIDth?
Preset: 1MHz
State Saved: Saved in instrument state.
Range: 1 kHz to 10 MHz
Notes: When IF BW Type is set to “AUTO” or “MIN”, the measurement does not
use this value.
Example: :AMD:BAND 1MHz
:AMD:BAND?
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