Agilent Technologies X Series Manual page 328

Waveform Measurement
Meas Setup
Remote Command
Example
Notes
Preset
State Saved
Range
Readback Text
Initial S/W Revision
Modified at S/W Revision
IF Gain Offset
Sets the IF Gain offset for the 40 MHz and 140 MHz IF Paths in 2 dB step from –6 dB to +6 dB.
Increasing the gain can increase the amplitude of small signals as long as you do not overdrive the
hardware. Wideband gain should usually be adjusted after setting the input attenuation.
The IF Gain key is enabled for all IF Path selections, but the IF Gain Offset is not activated when the IF
Path Selection is Narrow and IF Path Selection Narrow is either 10 MHz or 25 MHz.
Internally, the IF Gain value will change based on the current configuration of the hardware. If you
choose to offset this value, you may do so with this parameter. The value specified is not an absolute
value but relative to the current internal IF Gain setting.
For example:
IF Gain Low + IF Gain Offset +4 dB = Total IF Gain of +4 dB (0 + 4 = 4)
IF Gain High + IF Gain Offset +4 dB = Total IF Gain of +14 dB (10 + 4 = 14)
IF Gain Low + IF Gain Offset –6 dB = Total IF Gain of –6 dB (0 – 6 = –6)
IF Gain High + IF Gain Offset –6 dB = Total IF Gain of +6 dB (10 – 6 = 4)
The total IF Gain range when IF Gain Offset is available is a minimum of 0 – 6 = –6 dB and a maximum
of 10 + 6 = 16 dB. The available IF Gain depends on the IF Path and center frequency. The maximum IF
Gain may not be achievable at all times depending on the configuration.
Key Path
Remote Command
328
[:SENSe]:WAVeform:IF:GAIN[:STATe] AUTOrange|LOW|HIGH
[:SENSe]:WAVeform:IF:GAIN[:STATe]?
WAV:IF:GAIN HIGH
WAV:IF:GAIN?
This only applies to the RF input and does not apply to baseband I/Q input.
You must be in a mode that includes the Waveform measurement to use this
command. Use INSTrument:SELect to set the mode.
AUTO
Saved in instrument state.
Autorange (Slower Follows Signals)|Low (Best for Large Signals)|High (Best
Noise Level)
Autorange|Low|High
Prior to A.02.00
A.03.00
Meas Setup, Advanced
[:SENSe]:WAVeform:IF:GAIN:OFFSet <rel_ampl >
[:SENSe]:WAVeform:IF:GAIN:OFFSet?