User`s guide

Definition of Terms Specifications
Agilent 81610A/11A/12A/13A/14A Return Loss Module, Fifth Edition 53
Total Uncertainty
The maximum difference between measured return loss and actual
return loss. Symbol
∆
R
total
, expressed in dB .
where R
x
’ is the measured return loss, R
x
the actual return loss.
The total uncertainty includes receiver nonlinearity, receiver
polarization sensitivity, uncertainty of input power monitoring,
insertion loss uncertainty of the reference cable, and reflection
uncertainty of the reference cable.
Conditions: Full calibration (reflectance calibration, termination
calibration, and front panel delta) prior to measurement, constant
ambient temperature, measurement at wavelengths for which the
calibration was carried out, and constant source polarization state.
Other conditions as specified.
NOTE Wavelength dependent measurements of the actual return loss can be
performed by fully calibrating at each needed wavelength and using
the corresponding calibration settings for each measurement.
Plug & Play
The opeartion mode at which the factory settings for parasitics (no
termination calibration) and reference value (no reflectance
calibration) and a front panel delta of zero (no front panel calibration
are used.
Conditions: Measurement patchcord connectors in perfect optical
condition. Length of measurement patchcord and connector return
loss as specified. Other conditions as specified.
∆5 5 ′ 5 (all quanties expressed in dB)–=