Technical data

6-4 User’s and Service Guide
Servicing the Test Set
Performance Testing
Adapter Delay Removal
Step 1. Perform an S11 calibration on Port 1 of the network analyzer.
Step 2. Connect the 3.5 mm end of the 3.5 mm to APC-7 adapter,
Agilent part number 1250-1747, directly to Port 1 of the network
analyzer.
Step 3. Connect a 7 mm short to the APC-7 side of the connector
Step 4. Set the analyzer to polar format by pressing:
[FORMAT] > POLAR
Step 5. Press:
[CAL] > MORE > PORT EXTENSIONS > EXTENSIONS ON
>
EXTENSIONS INPUT 1
Step 6. Using the front panel knob, set the extension to remove phase offset.
The CRT should display a ball located on the right side of the graph
when the phase offset is removed.
Step 7. Record the port extension value here: ___________
NOTE It is important to record the negative or positive value.
Step 8. Divide the value by 2 and record the value here: ___________
This adapter delay value will be used in the “Calibration” on page 6-5
step 10.