Lambda SR1 Operation Manual page 167

Freq. Response:
Magnitude
Ratio B/A
Freq. Response:
Phase
Delta B-A
Scalar Measurements
All scalar measurements are taken between the frequency limits specified on the "Scalar
Measurements" tab of the Multitone Analyzer panel.
THD+N Sum (A/B)
THD Sum (A/B)
IMD Sum (A/B)
Total Noise (A/B)
Total Distortion (A/
B)
Ripple (A/B)
Lowest Tone (A/B) The frequency of the lowest amplitude received tone.
Highest Tone (A/B) The frequency of the highest amplitude received tone.
Because the multitone source has a periodic time-dependent amplitude profile, it may fool the
input autoranging control into switching ranges over the duration of the signal. It may be
necessary to turn off input autoranging while using the Multitone Analyzer and manually set
the input range.
The Multitone Analyzer Panel
© 2014 Stanford Research Systems
The vector of the ratios of the B channel rmagnitude response to the A channel
magnitude response.
The vector of the differences between the B channel phase and the A channel
phase.
The rms sum of all non-tone bins between the the frequency limits. If "noise
analysis" is enabled, this includes all odd (noise) bins and all even bins without
tones.
The rms sum of all bins containing harmonics of tones but not tones.
The rms sum of all bins between the specified frequency limits containing IMD
products up to the selected order of all tones.
The rms sum of all noise bins between the frequency limits. If "Noise Analysis" is
enabled this is simply the sum of all the odd bins within the frequency range.
The rms sum of the total distortion bins between the frequency limits. This
measurement is only active when "Noise Analysis" is selected.
The ratio of the highest amplitude received tone to the lowest amplitude received
tone.
SR1 Operation 167