Return Loss Measurement Return Loss Measurement
182 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
2 Move to the Power Sensor channel:
•Press [Menu].
•Move to <Pwr unit>, move to <dB> and press Enter.
•Move to <Display to Reference> and press Enter. This sets the power trans-
mitted through the reference cable, E
Meas
, as the reference value <Ref>.
3 Press [Close] to exit from the menu.
Measuring the Power Transmitted through the Measurement
Patchcord
Next, measure the power tramsmitted through the measurement patch
cord.
1 Making sure all the connectors are clean, set up the instrument as shown in
Figure 102 if you are using an External Source,
Figure 102 Power Transmitted through the Measurement Patchcord - External Source
or Figure 103 if you are using an internal source
(Agilent 81611A/2A/3A/4A Return Loss modules only).
Figure 103 Power Transmitted through the Measurement Patchcord - Internal Source
2 .Move to the Power Sensor channel:
• Press [Menu].
•If necessary, move to <Pwr unit>, move to <dB> and press Enter.
• The Power Sensor channel displays a power value in dB that is equal to the
Power
Sensor
8163B Lightwave Multimeter
measurement patchcord
8161x 8163B Lightwave MultimeterLaser
Source
Agilent 81113PC
Sensor
8161x
Power
8163B Lightwave Multimeter
measurement patchcord