Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 416 / 813

System Menu R&S
®
ZVA/ZVB/ZVT
1145.1084.12 4.254 E-6
External Power Meters
Configures external power meters with their connection type and device address. The analyzer supports
external R&S NRP-Z sensors as power meters, to be connected via USB interface (the supported types
comprise NRP-Z21, NRP-Z11, NRP-Z22, NRP-Z23, NRP-Z24, NRP-Z51, NRP-Z52, NRP-Z55, NRP-
Z91).
Use of external power meters, examples
An external power meter can serve different purposes:
•
Extended measurement functionality: Each external power meter represents an additional
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 frequency).
•
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.
Configured external power meters can be selected as additional receivers in the Port Configuration and
in the power calibration dialogs.