R&S FSH Measuring forward and reflected power
1309.6275.12 4.79 E-2
Press the FREQ softkey.
The frequency value entry box opens.
Using the number keys, enter the frequency you
want and confirm the entry with the ENTER key or
by pressing the FREQ softkey again.
The R&S FSH transfers the new frequency to the
power sensor which corrects the measured power
values accordingly.
Zeroing the power sensor
Offset voltages and currents have the greatest effect on the power readout when low powers are being
measured. Zeroing is used to compensate for these offsets. The power sensor automatically performs
zeroing when the corresponding function is activated by the user. No power must be applied to the
sensor while zeroing is being performed, since the sensor cannot distinguish between external powers
and internal offsets.
Press the ZERO softkey.
The R&S FSH outputs a message to inform the user
that no signal should be present at the power sensor
input while zeroing is being performed.
Disconnect the power sensor from any signal
sources.
Start zeroing by pressing CONTINUE.
Zeroing can be aborted before it is started by pressing
CANCEL, for example if a signal source cannot be
disconnected.
The R&S FSH immediately starts zeroing the power
sensor after CONTINUE is pressed. While zeroing is in
progress, the message "Zeroing power sensor, please
wait..." is displayed on the R&S FSH.
When zeroing is completed, the R&S FSH outputs the
message "Power Sensor Zero OK" and switches back
to the softkey menu for the power sensor.
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