Keysight x-series Instruction Manual

10 Hardware-Accelerated Fast Power Measurement (Remote Command Only)
10.2 Reset Fast Power Measurement (Remote Command Only)
10.2.4 Detector Type
Example
:CALC:FPOW:POW1:DEF "DetectorType=Peak"
Notes Option FP2 is required
Lets you specify whether an RMS average or peak value is used during the measurement
Preset
RmsAverage
Range
RmsAverage, Peak
10.2.5 Do Noise Correction
Example
:CALC:FPOW:POW1:DEF "DoNoiseCorrection=True"
Notes When noise correction is enabled, the linear noise power contributed by the instrument is subtracted
from all measurements. This effectively lowers the noise floor of the instrument
When noise correction is enabled, the first measurement for a given set of input parameters will take
extra time. This is because the instrument takes an extra acquisition with the RF input disconnected
from the instrument’s front end to measure the noise of just the instrument. The measured noise floor is
stored in a cache so the noise acquisition will occur only once for the same state settings. In other
words, if noise correction was turned on and the instrument made an acquisition at frequency A, then
frequency B, and back again to frequency A, the hidden initial noise floor acquisition would only occur
for the first acquisition at frequency A and the cached noise floor would be used the second time
frequency A was measured
Preset
False
Range
True
Enable noise correction
False
Disable noise correction
10.2.6 Do Spur Suppression
Example
:CALC:FPOW:POW1:DEF "DoSpurSuppression=True"
Notes When measuring very low-level signals, or when large out-of-band inputs are input into the instrument,
sometimes unwanted spurs and residuals can appear in the measured spectrum. Spur suppression is a
method to help minimize the levels of these internally generated spurs and residuals
When spur suppression is enabled, the instrument will automatically take two acquisitions using two
different internal analog LO frequencies. The FFT spectrums from both acquisitions are combined by
taking the minimum power between both traces on a per FFT bin basis. External signals will have the
same amplitude for both traces and therefore will return the expected amplitudes. However, low level
spurs and residuals generated internally to the instrument tend to move to different FFT bins depending
on the internal analog LO frequency used, and therefore tend to be suppressed using this spur
suppression method
2514 Short Range Comms & IoT Mode User's &Programmer's Reference

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)