Differential I/Q Modulator

The upconverter has differential IQ, balanced inputs.

Three external generators are required.

The two VNA internal sources are used as the differential I inputs.

Two external sources are used as the differential Q inputs.

An external RF Source is connected to the LO input. If the LO port is balanced, a balun or 180° hybrid coupler may be used as shown in the example.

Remove the port 3 front-panel jumper and connect the mixer output to the C receiver input.

This receiver is calibrated using the CPM - Direct Access Receiver Calibration. Learn more.