Keysight Technologies 8163A User Manual page 195

7 Return Loss Measurement
8163B Lightwave Multimeter
Power
Sensor
Keysight 81610CC Reference Cable
194
Measuring the Power Transmitted Through the Reference Cable
First, measure the power transmitted through the reference cable.
Making sure all the connectors are clean, set up the instrument as shown
in Figure 114
reference connector can be attached to a power meter because this is a
non-contact connection.
Figure 114
or Figure 115
Figure 115
6 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
transmitted through the reference cable, E
value <Ref>.
on page -194 if you are using an External Source. The
8161x
Power Transmitted through the Reference Cable - External Source
on page -194 if you are using an internal source.
8163B Lightwave Multimeter
Power
8161x
Sensor
Reference Cable
Keysight 81610CC
Power Transmitted through the Reference Cable - Internal Source
Laser 8163B Lightwave Multimeter
Source
, as the reference
Meas
8163A/B, 8164A/B, 8166A/B User's Guide