Agilent Technologies ENA Series Guia do Utilizador Página 533

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Chapter 15 527
Measurement Examples
Evaluating Transmission Characteristics of a Front End Module
15. Measurement Examples
Step 3. Select the test ports assigned to ports 1 to 4 for channel 1.
Step 4. Assign test ports for channels 2, 3, and 4. Press the key to switch the active
channel and then make the setting in the same way as Step 3.
Step 5. Enable the control of the E5091A.
4. Setting Control Line
Step 1. Set the bits of the control line for channel 1.
Step 2. Set the control line for channels 2, 3, and 4 according to the same procedure as in Step 1.
5. Setting Sweep Conditions
Step 1. Set the sweep conditions for channel 1.
Step 2. Set sweep conditions for channels 2, 3, and 4 according to the same procedure as in Step 1.
6. Setting Balance Conversion Topology
For channel 2, set the balance conversion topology in order to perform measurement that
Setting Description Key Operation
Assign test port A to port 1.
Port1 - A
Assign test port T1 to port 2. Port2 - T1
Assign test port R1+ to port 3. Port3 - R1+
Assign test port R1- to port 4. Port4 - R1-
Setting Description Key Operation
Enable the control of the E5091A.
Control (set it to ON)
Setting Description Key Operation
Set channel 1 to the active channel.
Line 1: Low
Control Lines (check only)
Line 2: High
Control Lines - Line 1 (set it to High)
Setting Description Key Operation
Set channel 1 to the active channel.
Start frequency: 400 MHz
Stop frequency: 1.4 GHz
Number of points: 201
-
Point -
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