Agilent Technologies ENA Series User Manual page 506

Measurement Examples
Evaluating a Duplexer
Setup Description
Moving Marker 1 to the trace maximum
Bandwidth search: ON
In the example shown in Figure 15-15, the insertion loss (
bandwidth ( ) is 71.04 MHz.
BW
Step 3. Determine the isolation between Tx and Rx.
Setup Description
Activating Trace 3
Marker 1: ON
Search/Tracking: ON
Moving Marker 1 to the peak near 1.92 GHz
In the example shown in Figure 15-15, isolation (response value of marker 1) is 6.612 dB.
Step 4. Determine the return loss of Tx.
Setup Description
Activating Trace 4
Marker 1: ON
Search/Tracking: ON
Moving Marker 1 to the peak in the pass band
*1. If you cannot move the marker to the desired peak, use
peak deviation and then execute the search again. (Example:
In the example of Figure 15-15, return loss (response value of Marker 1) is 12.65 dB.
Step 5. Determine the return loss of Rx.
Setup Description
Activating Trace 5
Marker 1: ON
Search/Tracking: ON
500
Key Operation
Max
Bandwidth
Key Operation
Peak
many times as necessary)
Key Operation
Peak
many times as necessary)
).
Key Operation
(Turn it )
ON
) is 1.627 dB and the 3-dB
loss
- (Turn it
Tracking
- or
Search Left Search Right
- (Turn it
Tracking
- or
Search Left Search Right
*1
to change the
Peak Excursion
-
Peak Excursion
- (Turn it
Tracking
Chapter 15
)
ON
(press as
)
ON
(press as
)
ON