R&S ZVH Power Meter (R&S ZVH-K9)
Using a Directional Power Sensor
Operating Manual 1309.6946.12 - 09 167
► Press the SCALE/AMPT key.
► Press the "Ref Offset" softkey.
The input field to enter the reference offset opens.
► Enter the offset you need.
The selected offset is displayed in the diagram header and is taken into account in
the power (level) and matching results.
If high powers are applied that exceed the maximum input level of the R&S FSH-Z14
or R&S FSH-Z44, a directional coupler or an attenuator has to be connected ahead of
the power sensor. In such cases, the coupling attenuation of the directional coupler or
the attenuation value of the attenuator are to be entered as positive dB values (see
above) into the R&S ZVH to ensure true measured power readout. In both cases, a
termination or an attenuator of sufficient power-handling capacity has to be connected
to the power sensor at the load end. The matching readout is irrelevant in such case
since it is likewise corrected by taking into account the attenuation value of the
termination or attenuator.
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