The upconverter has differential IQ, balanced inputs.
Three external generators are required.
The two PNA internal sources are used as the differential I inputs.
Connect to ports 1 and 3 using the same frequency range.
Set the phase of port 3 to 180° relative to port 1.
Two external sources are used as the differential Q inputs.
Connect to ports 2 and 4 using the same frequency range as ports 1 and 3.
Set the phase of port 2 to +90° relative to port 1.
Set the phase of port 4 to -90° relative to port 1.
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.
When using a Fixed LO, there is no need to control the source.
Otherwise, first configure the source in the External Source configuration dialog.
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.