Chapter 4 Putting into Operation
5300.9677.72 - 4.21 - EN-4
Note The output power and the percentage specified for Ref. Voltage are not proportional to
one another; e.g. 80 % Ref. Voltage (90 % in the case of R&S SR8130 and R&S
SR8250A) corresponds roughly to the power class of the transmitter, and 40 % (45 %)
to around a quarter of it.
The table below describes the parameters:
Display/
Setting item
Description
Forward Power Present forward power of the transmitter
Reflected Power Present reflected power of the transmitter
VSWR VSWR (voltage standing wave ratio)
Nominal Power The variable "nominal power" forms the initial value for warning and fault
thresholds. The actual power setting is entered via Ref. Voltage.
Ref. Voltage Adjusting the reference voltage changes the output power
Actual Ref. Voltage Present value of the reference voltage; owing to power reduction result-
ing from excessive temperature/VSWR, this value may deviate from the
setting under Ref. Voltage
Forward Power Present forward power of the transmitter
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