Rohde & Schwarz FSW-K40 - Configuring the Measurement Range

Configuration
R&S
®
FSW-K40
43User Manual 1173.9286.02 ─ 15
This mode is useful to measure the phase noise at small offset frequencies, because
the small bandwidths required to measure these offset frequencies usually lead to long
measurement times (and especially when you apply averaging).
In the Half Decade Configuration Table, half decades that are measured in online
mode are highlighted in a darker shade of green (compared to the shade of green that
is used to highlight the half decades that are taken into account in the measurement).
Light green
= normal I/Q mode
Dark green = online I/Q mode
The online measurement mode is available under the following conditions:
●
Only half decades with a frequency offset smaller than 30 kHz can be measured in
online mode.
●
The half decades that you want to measure in online mode have to be set to "I/Q
FFT" sweep mode.
●
Decimation has to be turned on.
●
Sweep Forward has to be turned off.
Remote command:
[SENSe:]IQ:ONLine on page 97
5.5 Configuring the Measurement Range
Access: "Overview" > "Phase Noise Meas"
The "Phase Noise" tab of the "Measurement Settings" dialog box contains all funtions
necessary to configure the measurement range for phase noise measurements, includ-
ing individual range settings.
Range Start / Stop.........................................................................................................44
Sweep Forward.............................................................................................................44
Presets..........................................................................................................................44
Global RBW.................................................................................................................. 44
Global Average Count...................................................................................................45
Multiplier........................................................................................................................45
Global Sweep Mode......................................................................................................45
Global I/Q Window........................................................................................................ 45
Half Decades Configuration Table................................................................................ 46
Configuring the Measurement Range