Making a Return Loss Measurement
Getting Started with Return Loss
Agilent 81610A/11A/12A/13A/14A Return Loss Module, Fifth Edition
25
Termination Calibration
Use this procedure to calibrate the Return Loss module against a
terminated cable, that is when there are no reflections returning from
its end.
1
Making sure all the connectors are clean, set up the instrument as
shown in Figure 14
Figure 14
Termination Calibration - External source
or Figure 15 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 15
Termination Calibration - Internal Source
N O T E
If you are using a Fabry-Perot source, you must fix its output cable
to ensure minimum cable movement.
2
Terminate the cable so that there are no reflections coming from the
end.
T I P
You can do this by wrapping the fiber five times around the shaft of
a screwdriver
(or some similar object with a diameter of between
5mm and 7mm).
3
Press [Menu] to access the menu.
4
Move to <
Terminated calibration
> and press [Enter]. The
instrument measures the power reflected by the cable, and sets the
[
Para
] values used by the Return Loss monitor’s power sensor and
monitor diode.
T I P
An alternative steps 3 and 4 is to select the Return Loss module’s
[Details] screen, then press [TermCal].
Termination
8161x
8163A Lightwave Multimeter
Laser
Source
Agilent 81113PC
Agilent 81113PC
8161x
8163A Lightwave Multimeter
Termination
Agilent 81113PC
Summary of Contents for 81610A
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Page 48: ...Agilent 81610A 11A 12A 13A 14A Return Loss Module Fifth Edition 45 Accessories ...
Page 52: ...Agilent 81610A 11A 12A 13A 14A Return Loss Module Fifth Edition 49 Specifications ...
Page 62: ...Agilent 81610A 11A 12A 13A 14A Return Loss Module Fifth Edition 59 Performance Tests ...
Page 92: ...Agilent 81610A 11A 12A 13A 14A Return Loss Module Fifth Edition 89 Cleaning Information ...
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