Agilent Technologies N4413A, User Manual

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Using the Multiport Test System
How to Perform Electronic Calibration
Chapter 3 42
How to Perform Electronic Calibration
You can perform a 4-port electronic calibration using the Agilent N4430A/B Four-Port
Electronic Calibration (ECal) Module (formerly the ATN-4801 Multiport Calibration Module).
Note that the N4431A 4-port RF Electronic Calibration Module is
not compatible with the
Multiport Test System.
With a one-time connection, the ECal procedure cycles through all of the impedance states
required for a full, four-port, vector error-corrected calibration, and can transfer
factory-calibration accuracy to the network analyzer system. The balanced measurement
software controls the electronic calibration.
CAUTION
ECal module damage will occur if connected to incompatible multiport test sets.
Do not connect an ECal module to the following test sets:
• Model ATN-4111A, serial number A433652 or below
• Model ATN-4111B, serial number A433901 or below
NOTE For maximum accuracy and repeatability, the system (network analyzer, test
set, and ECal module) should be stabilized at room temperature for a minimum
of 24 hours before calibration.
Using standard alignment precautions, the multiport test set may have the ECal module
connected and disconnected in any power state. After calibration, the ECal module may
remain connected to the test set or may be disconnected from the test set with no effect on the
calibration.
To perform the ECal with the multiport test system:
1. Connect the ECal module to the multiport test system as follows:
2. In the software, select Calibrate > Electronic Calibration…
ECal Module Connector Test Set Connector Cable Type Specified Torque
CONTROL AUXILIARY DB-15 N/A
PORT 1 (3.5 mm F) PORT 1 (3.5 mm M) Coax 8 in/lb
PORT 2 (3.5 mm F) PORT 2 (3.5 mm M) Coax 8 in/lb
PORT 3 (3.5 mm F) PORT 3 (3.5 mm M) Coax 8 in/lb
PORT 4 (3.5 mm F) PORT 4 (3.5 mm M) Coax 8 in/lb