R&S NRP Measuring average power (Cont Av mode)
1144.1400.12 2.9 E-2
6 Relative power measurements
The R&S NRP can calculate and display the relative difference between a measured value and a refer-
ence value. The reference value can be a measured value that has been saved or an arbitrary value
that is entered.
– ( )
*↔ *
¾ Using the topmost rocker switch or the cursor keys
(ÕÖ), select the Measurement menu.
Relative – ( )
*
¾ To activate the relative mode, press the right-hand
side of the rocker switch next to Relative.
As the default setup was loaded in step
1, the value
relative to 0 dBm is displayed.
Relative – ( )
*
¾ Press the rocker switch next to Relative again on the
right-hand side.
In the second line,
Off On Reset
is displayed briefly and then the original display returns.
The last power result obtained has now been made the
new reference value. If the power has not changed in the
meantime, the reference value and the power are equal
and the indicated value is 0 dB.
¾ If an attenuator is still connected, remove it now and
connect the sensor directly to the signal source.
The displayed value should now equal the attenuation
that has been entered.
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