Concepts and Features
R&S
®
ZNC
104
User Manual 1173.9557.02 ─ 13
3.7.5 External Power Meters
The connection of an external power meter to the R&S ZNC can serve different purposes.
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Extended measurement functionality: Each external power meter represents an addi-
tional receive port. External generators increase the number of RF output signals of
a DUT that the analyzer can measure simultaneously. They can also provide accurate
results for signals at inaccurate or unknown frequencies. A typical example is a mixer
measurement with an unknown LO signal (and therefore unknown IF output fre-
quency).
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Power calibration: An external power meter can measure the exact signal power at
an arbitrary point in the test setup (reference plane) and thus provide the reference
values for a power calibration. A typical example is a source power calibration for an
arbitrary analyzer port.
External power meters must be configured with their connection type and device address
before they are available as additional receivers ("SYSTEM SETUP > External Devices
> Power Meters"). Configured power meters appear in many control elements of the R&S
ZNC, e.g. in the in the port configuration and in the power calibration dialogs.
Optional Extensions and Accessories