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Keysight Electronic Calibration (ECal)
Modules for Vector Network Analyzers
N4690 Series, 2-port Microwave ECal
85090 Series, 2-port RF ECal
N4430 Series, 4-port ECal
Technical Overview
Introduction
Electronic calibration (ECal) is a precision, single-connection,one-, two-, three-, or four-port calibration technique
for your vector network analyzer. ECal modules use fully traceable and verifiable electronic impedance standards.
The modules are state-of-the-art, solid-state devices with programmable and highly repeatable impedance
states. ECal modules are transfer standards that provide consistent calibrations and eliminate operator errors
while bringing convenience and simplicity to your calibration routine. Consistent calibrations provide consistent
measurements.
ECal replaces the traditional calibration technique, which uses mechanical standards. With mechanical standards
you are required to make numerous connections to the test ports for a single calibration. These traditional calibra-
tions require intensive operator interaction, which is prone to error. With ECal, a full one- to four-port calibration
can be accomplished with a single connection to the ECal module and minimal operator interaction. This results in
faster and more repeatable calibrations.
Mixed-connector options are available for the 85092C,85093C, 85098C, N4431B and N4432A. The available con-
nectors are Type-N 50 ohms, 3.5mm, and 7-16.
Control ECal directly from the PNA or ENA