R&S ZNB Series User Manual page 243

®
R&S ZNB/ZNBT
Lower Tone
Upper Tone
An external combiner is required anyway.
Operation with more than one source is not supported, if
part of the RF connection configuration.
The intermodulation distortion measurement can be extended to frequency-converting
DUTs. E.g., it is possible to feed the two-tone source signal to the RF input of a mixer
and measure the intermodulation distortion of the IF output signal, after conversion
with an additional LO signal.
User Manual 1173.9163.02 ─ 62
VNA
1 3
1
Optional extensions and accessories
2 4
DUT
2
External switch matrices
Concepts and features
are
243