APC H15 Service Manual download pdf (Page 61)

User’s and Service Guide 6-5

Servicing the Test Set

Performance Testing

Calibration

Step 1. Connect two (2) 3.5 mm flexible test port cables to Port 1 and Port 2 of

the network analyzer.

Step 2. Connect the APC-7 to 3.5 mm adapter to the end of the test Port 2 cable.

Step 3. Perform the first full two-port calibration using a 3.5 mm calibration

kit. Use the 3.5 mm standards.

Step 4. When the isolation calibration is performed, set the averaging to 16.

Step 5. Save the calibration to the internal disk and label it "Cal1".

Step 6. Perform the second full two-port calibration using a 7 mm calibration

kit. Use the 7 mm standards. The Port 1 reference plane is the 7 mm to

3.5 mm adapter.

Step 7. When the isolation calibration is performed, set the averaging to 16.

Step 8. Save the calibration to the internal disk and label it "Cal2".

Step 9. Press:

[CAL] > MORE > ADAPTER REMOVAL > HELP ADAPTER REMOVAL

Step 10. Remove the adapter and use the value recorded in step 8 of the

“Adapter Delay Removal” on page 6-4 for the adapter delay.

Step 11. Save the calibration and the instrument state in the internal memory

and label as "Test".

Step 12. Mark the adapter on Port 2 to indicate the port adapter reference.

Step 13. Perform an adapter removal calibration from 300 kHz to 6 GHz.

Step 14. Make sure the calibration is active.

Step 15. Save the calibration into the analyzer internal disk by pressing:

[SAVE/RECALL] > SAVE STATE

NOTE The isolation calibration routine is done with 16 averages.

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APC H15 Service Manual Page 61