Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.8 Spurious Emissions Measurement
IF Gain
Sets IF Gain to: Auto, On (the extra 10 dB) or Off. These settings affect sensitivity
and IF overloads. A switched IF amplifier with approximately 10 dB of gain is
available. This amplifier takes full advantage of the RF dynamic range of the
instrument. When it can be turned on without an overload, the dynamic range is
always better with the amplifier on than off.
Dependencies The IF Gain controls (FFT IF Gain and Swept IF Gain) have no effect when the U7227A USB Preamp-
lifier is connected. This is not annotated or reflected on any control; there are no controls grayed out
nor any SCPI locked out. The instrument simply behaves as though both FFT IF Gain and Swept IF
Gain are set to Low regardless of the setting on the controls
IF Gain Auto
Activates the rules for auto IF Gain.
Remote
Command
[:SENSe]:SPURious:IF:GAIN:AUTO[:STATe] OFF | ON | 0 | 1, OFF | ON | 0 | 1,
OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF |
ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON |
0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 |
1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1,
OFF | ON | 0 | 1
[:SENSe]:SPURious:IF:GAIN:AUTO[:STATe]?
Example
:SPUR:IF:GAIN:AUTO ON,ON
:SPUR:IF:GAIN:AUTO?
Couplings When the sweep type is Swept, ‘Auto’ sets IF Gain to High Gain under any of the following conditions:
the input attenuator is set to 0 dB, the preamp is turned on, or the Max Mixer Level is −20 dBm or lower.
For other settings using the swept sweep type, auto sets IF Gain to Low Gain
Preset
OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF,
OFF, OFF, OFF, OFF, OFF
State Saved Saved in instrument state
IF Gain State
Selects the range of IF Gain.
Remote
Command
[:SENSe]:SPURious:IF:GAIN[:STATe] OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF |
ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON |
0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 |
1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1,
OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF | ON | 0 | 1, OFF |
ON | 0 | 1
[:SENSe]:SPURious:IF:GAIN[:STATe]?
Example
:SPUR:IF:GAIN ON,ON
:SPUR:IF:GAIN?
Spectrum Analyzer Mode User's &Programmer's Reference 1457

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)