3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
+30dBm. For example, the reference level value range can be initially set to values
from –170 dBm to 30dBm with no Reference Level Offset. If the reference level is
first set to –20dBm, then Reference Level Offset can be set to values of –150 to
+50dB.
If Reference Level Offset is first set to –30dB, then the reference level can be set to
values of –200dBm to 0dBm. In this case, Reference Level is “clamped” at 0dBm
because the maximum limit of +30dBm is reached with a reference level setting of
0dBm with an offset of –30dB. If instead, Reference Level Offset is first set to 30dB,
then Reference Level can be set to values of –140 to +60dBm.
Number of Divisions
Lets you set the number of divisions vertically in the graticule. For example, set this
to 12 to allow 120dB of dynamic range with a scale of 10 dB/division.
Remote
Command
:DISPlay:WINDow[1]:TRACe:Y[:SCALe]:NDIVision 6 | 8 | 10 | 12 | 16 | 20
:DISPlay:WINDow[1]:TRACe:Y[:SCALe]:NDIVision?
Example
:DISP:WIND:TRAC:Y:NDIV 12
Preset 10
State Saved Saved in instrument state
3.2.3.2 Attenuation
Controls the attenuator functions and interactions between the attenuation system
components.
There are two attenuator configurations in the X-Series. One is a Dual-Attenuator
configuration consisting of a mechanical attenuator and an optional electronic
attenuator. The other configuration uses a single attenuator with combined
mechanical and electronic sections that controls all the attenuation functions.
Different models in the X-Series come with different configurations.
–
See "Dual-Attenuator Configurations" on page 213
–
See "Single-Attenuator Configuration" on page 213
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
212 Spectrum Analyzer Mode User's &Programmer's Reference