Agilent Technologies Agilent 8163A User Manual

Return Loss Measurement A Background to Return Loss Measurement
190 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
Measuring the Power Transmitted Through
the Reflection Reference
Connect your a Reflection Reference Cable to a Power Meter and measure
the transmitted power, E
ref
. You can use E
ref
to calculate the front panel
delta, see “Calculating the Front Panel Delta” on page 195.
Figure 112 Measuring the Power transmitted through the Reflection Reference
Measuring the Power when there are No
Reflections
Next, terminate the mesurement patchcord so that there are no reflections
from the end. All the power measured by the sensor now, is due to the
non-ideal nature of the measurement system. This is our termination
parameter.
Figure 113 Measuring the Power with the Connector Terminated
This measured power for the termination parameter is called P
T
.
You can only measure the Front Panel Delta if you use the a Reflection
Reference Cable.
NOTE
Power Meter
E
ref
M
ref
P
ref
Reference Cable
Agilent 81610A
P
in
P
r
Reflection Reference
Reflection-free
Te r m i n a t i o n
= 0
M
ref
P
ref
Agilent 81610A
Reflectivity
P
in
measurement patchcord

Agilent Technologies Agilent 8163A Specifications

General

Brand	Agilent Technologies
Model	Agilent 8163A
Category	Multimeter
Language	English