Measurements
R&S
®
RTO6
333User Manual 1801.6687.02 ─ 05
Meas. type Description/Result
Noise (RMS) Quadratic mean of the noise of eye top and eye base
Noise (RMS) = (σtop + σbase)/2
S/N ratio Signal-to-noise ratio
SNR = 10 * log (Eye amplitude / Noise RMS)
Duty cycle distortion Duty cycle distortion = 20 * log (Eye amplitude / Noise RMS)
Eye rise time Duration for signal to rise from 10% to 90% of the high signal level
Eye fall time Duration for signal to fall from 90% to 10% of the high signal level
Eye bit rate Frequency between two crossings
Eye amplitude Eye top - Eye base
Jitter (peak to peak) Average of the jitter for both crossing points.
Jitter = (σcrossing1 + σcrossing2) / 2
6σ
Jitter (6*σ) Jitter (6*σ) = Jitter * 6
Jitter (RMS) Quadratic mean of the jitter at both crossing points
Crossing points (%) Percentage of points crossing the eye
8.2.6.2 Settings for eye diagram measurements
Access: [Measure] > "Setup" tab > "Eye" category
Eye diagram measurements are only available for sources in the time domain.
Automatic measurements
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