Concepts and features
R&S
®
ZNA
290
User Manual 1178.6462.02 ─ 20
4.7.39
External generators
The connection of an external generator to the R&S
ZNA can serve different purposes.
●
Extended measurement functionality: Each external generator represents an addi-
tional source port. External generators increase the number of RF input signals for
the DUT. A typical example is a mixer measurement with a 2-port analyzer, where
an external generator provides the LO input signal.
VNA
1
2
RF
LO
IF
USB ports
Control connection
(e.g. USB)
External generator
RF
out
●
Power calibration: An external generator can provide the reference signal for a
source or receiver calibration. A typical example is a receiver power calibration
using a measured wave b
1
.
Optional extensions and accessories